<?xml version="1.0" encoding="UTF-8" ?><xml><records><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>75</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">75</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Welsch, Torsten</style></author><author><style face="normal" font="default" size="100%">Vievers, Yannick</style></author><author><style face="normal" font="default" size="100%">Schnellenbach-Held, Martina</style></author><author><style face="normal" font="default" size="100%">Bialuschewski, Danny</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Comparison of Different Aerogel Granules for Use as Aggregate in Concrete</style></title><secondary-title><style face="normal" font="default" size="100%">Gels</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Gels</style></full-title></periodical><pages><style face="normal" font="default" size="100%">406</style></pages><volume><style face="normal" font="default" size="100%">9</style></volume><number><style face="normal" font="default" size="100%">5</style></number><dates><year><style face="normal" font="default" size="100%">2023</style></year></dates><isbn><style face="normal" font="default" size="100%">2310-2861</style></isbn><accession-num><style face="normal" font="default" size="100%">doi:10.3390/gels9050406</style></accession-num><urls><related-urls><url><style face="normal" font="default" size="100%">https://www.mdpi.com/2310-2861/9/5/406</style></url></related-urls></urls></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>84</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">84</key></foreign-keys><ref-type name="Book Section">5</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Steiner, Stephen A.</style></author><author><style face="normal" font="default" size="100%">Anderson, Ann M.</style></author><author><style face="normal" font="default" size="100%">Brock, Stephanie L.</style></author><author><style face="normal" font="default" size="100%">Buckwalter, Moriah C.</style></author><author><style face="normal" font="default" size="100%">Carroll, Mary K.</style></author><author><style face="normal" font="default" size="100%">De Pooter, Steve</style></author><author><style face="normal" font="default" size="100%">Downey, Shannan L.</style></author><author><style face="normal" font="default" size="100%">Eychmüller, Alexander</style></author><author><style face="normal" font="default" size="100%">Georgi, Maximilian</style></author><author><style face="normal" font="default" size="100%">Griffin, Justin S.</style></author><author><style face="normal" font="default" size="100%">Grogan, Michael D. W.</style></author><author><style face="normal" font="default" size="100%">Gurikov, Pavel</style></author><author><style face="normal" font="default" size="100%">Hiekel, Karl</style></author><author><style face="normal" font="default" size="100%">Hrubesh, Lawrence W.</style></author><author><style face="normal" font="default" size="100%">Kanamori, Kazuyoshi</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Nelson, Ryan T.</style></author><author><style face="normal" font="default" size="100%">Rao, A. Venkateswara</style></author><author><style face="normal" font="default" size="100%">Schwan, Marina</style></author><author><style face="normal" font="default" size="100%">Silva, Karunamuni L.</style></author><author><style face="normal" font="default" size="100%">Worsley, Marcus A.</style></author><author><style face="normal" font="default" size="100%">Zhao, Shanyu</style></author></authors><secondary-authors><author><style face="normal" font="default" size="100%">Aegerter, Michel A.</style></author><author><style face="normal" font="default" size="100%">Leventis, Nicholas</style></author><author><style face="normal" font="default" size="100%">Koebel, Matthias</style></author><author><style face="normal" font="default" size="100%">Steiner Iii, Stephen A.</style></author></secondary-authors></contributors><titles><title><style face="normal" font="default" size="100%">Recipes and Designs for Aerogels</style></title><secondary-title><style face="normal" font="default" size="100%">Springer Handbook of Aerogels</style></secondary-title></titles><pages><style face="normal" font="default" size="100%">1643-1728</style></pages><dates><year><style face="normal" font="default" size="100%">2023</style></year></dates><pub-location><style face="normal" font="default" size="100%">Cham</style></pub-location><publisher><style face="normal" font="default" size="100%">Springer International Publishing</style></publisher><isbn><style face="normal" font="default" size="100%">978-3-030-27322-4</style></isbn><abstract><style face="normal" font="default" size="100%">This chapter presents a set of representative recipes for synthesizing a variety of aerogels of interest to academia and industry along with designs for equipment of utility for researching aerogels. Useful starting points for preparing aerogels of silica, various metal oxides, polymers, biopolymers, metal chalcogenides, metals, and nanocarbons are provided. Schematics for equipment including a low-cost supercritical CO2 dryer, a setup for performing high-temperature supercritical drying with a hot press instead of an autoclave, and a calibrated hot plate for measuring thermal conductivity are supplied.</style></abstract><label><style face="normal" font="default" size="100%">Steiner2023</style></label><urls><related-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1007/978-3-030-27322-4_65</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">10.1007/978-3-030-27322-4_65</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>86</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">86</key></foreign-keys><ref-type name="Book Section">5</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author></authors><secondary-authors><author><style face="normal" font="default" size="100%">Aegerter, Michel A.</style></author><author><style face="normal" font="default" size="100%">Leventis, Nicholas</style></author><author><style face="normal" font="default" size="100%">Koebel, Matthias</style></author><author><style face="normal" font="default" size="100%">Steiner Iii, Stephen A.</style></author></secondary-authors></contributors><titles><title><style face="normal" font="default" size="100%">Modeling the Structural, Fractal and Mechanical Properties of Aerogels</style></title><secondary-title><style face="normal" font="default" size="100%">Springer Handbook of Aerogels</style></secondary-title></titles><pages><style face="normal" font="default" size="100%">289-305</style></pages><dates><year><style face="normal" font="default" size="100%">2023</style></year></dates><pub-location><style face="normal" font="default" size="100%">Cham</style></pub-location><publisher><style face="normal" font="default" size="100%">Springer International Publishing</style></publisher><isbn><style face="normal" font="default" size="100%">978-3-030-27322-4</style></isbn><abstract><style face="normal" font="default" size="100%">Modeling and simulation have played an indispensable role in the understanding of the structure-property relationships of a wide class of materials. Material modeling has been pivotal in enhancing our understanding of several aspects of porous materials, including those that of aerogels. This chapter summarizes the role of modeling and simulation in investigating specifically the mechanical structure-property relationships of aerogels. The role of all-atom simulations in describing the nanomechanics of aerogels is first examined. This is followed by a review of aggregation models and their impact on the characterization of the structural and fractal properties of aerogels. Constitutive models and their role in predicting the overall macroscopic behavior of aerogels are then discussed in detail. More recent microstructure-based approaches, such as Voronoi tessellations and the bonded particle method, applied for describing the morphology of aerogels and their subsequent properties are considered at the end.</style></abstract><label><style face="normal" font="default" size="100%">Rege2023</style></label><urls><related-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1007/978-3-030-27322-4_12</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">10.1007/978-3-030-27322-4_12</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>71</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">71</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">A Perspective on Methods to Computationally Design the Morphology of Aerogels</style></title><secondary-title><style face="normal" font="default" size="100%">Advanced Engineering Materials</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Advanced Engineering Materials</style></full-title></periodical><pages><style face="normal" font="default" size="100%">2201097</style></pages><volume><style face="normal" font="default" size="100%">25</style></volume><number><style face="normal" font="default" size="100%">1</style></number><dates><year><style face="normal" font="default" size="100%">2023</style></year></dates><isbn><style face="normal" font="default" size="100%">1438-1656</style></isbn><abstract><style face="normal" font="default" size="100%">Reconstructing aerogel morphology presents significant challenges, in particular, if 3D visualizations of their mesoporous network are desired. Available microscopic and tomographic tools find it difficult to probe into all types of aerogels for the purposes of reconstructing their 3D nanoporous morphology. This is where computational approaches have shown promising efforts. Herein, diverse models that can be applied to describing different aerogels are explored. To begin with, cluster–cluster aggregation models are examined for simulating the sol–gel process and the resulting morphologies in fractal aerogels, e.g., silica-based. Gaussian random field models and polymerization-induced phase separation models are explored for modeling organic non-fractal aerogels, e.g., resorcinol-formaldehyde (RF) ones. This is followed by Langevin-dynamics-based discrete element models that are explored for simulating gelation in fibrillar aerogels, e.g., those from biopolymer sources. Lastly, modified Voronoi approaches are investigated for describing the 3D fibrillar morphology, also of fibrillar aerogels, like those from biopolymers. A perspective is presented highlighting the strengths as well as shortcomings in each of the model approaches. Possibilities to either extend available approaches or explore new ones are briefly discussed at every interval.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://onlinelibrary.wiley.com/doi/abs/10.1002/adem.202201097</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1002/adem.202201097</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>70</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">70</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author><author><style face="normal" font="default" size="100%">Aney, Shivangi</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The Effect of Particle Necks on the Mechanical Properties of Aerogels</style></title><secondary-title><style face="normal" font="default" size="100%">Materials</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Materials</style></full-title></periodical><pages><style face="normal" font="default" size="100%">230</style></pages><volume><style face="normal" font="default" size="100%">16</style></volume><number><style face="normal" font="default" size="100%">1</style></number><dates><year><style face="normal" font="default" size="100%">2023</style></year></dates><isbn><style face="normal" font="default" size="100%">1996-1944</style></isbn><accession-num><style face="normal" font="default" size="100%">doi:10.3390/ma16010230</style></accession-num><urls><related-urls><url><style face="normal" font="default" size="100%">https://www.mdpi.com/1996-1944/16/1/230</style></url></related-urls></urls></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>85</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">85</key></foreign-keys><ref-type name="Book Section">5</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">van Klaveren, Eva</style></author></authors><secondary-authors><author><style face="normal" font="default" size="100%">Aegerter, Michel A.</style></author><author><style face="normal" font="default" size="100%">Leventis, Nicholas</style></author><author><style face="normal" font="default" size="100%">Koebel, Matthias</style></author><author><style face="normal" font="default" size="100%">Steiner Iii, Stephen A.</style></author></secondary-authors></contributors><titles><title><style face="normal" font="default" size="100%">Aerogels for Foundry Applications</style></title><secondary-title><style face="normal" font="default" size="100%">Springer Handbook of Aerogels</style></secondary-title></titles><pages><style face="normal" font="default" size="100%">1535-1554</style></pages><dates><year><style face="normal" font="default" size="100%">2023</style></year></dates><pub-location><style face="normal" font="default" size="100%">Cham</style></pub-location><publisher><style face="normal" font="default" size="100%">Springer International Publishing</style></publisher><isbn><style face="normal" font="default" size="100%">978-3-030-27322-4</style></isbn><abstract><style face="normal" font="default" size="100%">The casting of metals and alloys is very often performed into molds made of sands bonded by polymers. Resins based on, for instance, phenol–formaldehyde build bonding bridges between the sand grains establishing a macro-porous tight and strong sand form having a shape mirroring the workpiece to be cast. Any cavity in a casting is mapped by so-called cores, which are also made of polymeric bonded sands. Organic aerogels can replace conventional polymers and offer a variety of advantages due to their nanostructure and composition, especially for cores. The development of these organic aerogels for light metal and nonferrous heavy metal casting is described; their properties are elaborated and compared with conventional ones. Transforming especially resorcinol–formaldehyde (RF) aerogels into carbon aerogels allows bonding sand grains by amorphous, nanostructured carbon with special advantages. New developments in the last years are described, revealing that inorganic, organic, or hybrid aerogels in a granular form can replace a part of any sand used in foundries, leading to improved cast parts. These nano-additives made from RF aerogels, carbon aerogels, or silica-based ones have the great advantage that only small amounts are needed and the conventional processes of mold and core making need not to be changed. In contrast to polymeric and carbon aerogels, the silica-based ones are used for more than a decade in solidification engineering to study fundamental aspects of metal solidification and casting also in space laboratories. A new application of silica aerogels in metal casting was developed: Beds of silica granules were infiltrated with liquid aluminum leading to a new class of porous metal.</style></abstract><label><style face="normal" font="default" size="100%">Ratke2023</style></label><urls><related-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1007/978-3-030-27322-4_62</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">10.1007/978-3-030-27322-4_62</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>83</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">83</key></foreign-keys><ref-type name="Book Section">5</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author><author><style face="normal" font="default" size="100%">Ganesan, Kathirvel</style></author><author><style face="normal" font="default" size="100%">Schestakow, Maria</style></author></authors><secondary-authors><author><style face="normal" font="default" size="100%">Aegerter, Michel A.</style></author><author><style face="normal" font="default" size="100%">Leventis, Nicholas</style></author><author><style face="normal" font="default" size="100%">Koebel, Matthias</style></author><author><style face="normal" font="default" size="100%">Steiner Iii, Stephen A.</style></author></secondary-authors></contributors><titles><title><style face="normal" font="default" size="100%">Cellulose Aerogels: Monoliths, Beads, and Fibers</style></title><secondary-title><style face="normal" font="default" size="100%">Springer Handbook of Aerogels</style></secondary-title></titles><pages><style face="normal" font="default" size="100%">623-651</style></pages><dates><year><style face="normal" font="default" size="100%">2023</style></year></dates><pub-location><style face="normal" font="default" size="100%">Cham</style></pub-location><publisher><style face="normal" font="default" size="100%">Springer International Publishing</style></publisher><isbn><style face="normal" font="default" size="100%">978-3-030-27322-4</style></isbn><abstract><style face="normal" font="default" size="100%">Cellulose aerogels can be produced by using several methods, yielding materials with extremely low densities. Their structure can be described as a type of nanofelt, which means that nanosized fibrils of cellulose are arranged in a random three-dimensional (3D) network with a huge meso- to macro-porosity. The synthesis of cellulose aerogels typically has four steps: dissolution of cellulose precursors down to their polymeric level, gelation of the solution by different methods, regeneration in nonsolvents, and drying in a way to preserve the wet gel nanostructure. Cellulose aerogels are prepared as monoliths having sizes in the centimeter to decimeter range, beads with diameters ranging from a few tens of micrometers to a millimeter, and filaments for possible textile applications. This chapter describes the different methods developed in the last decades by research groups worldwide to produce low density cellulose monoliths, beads, and filaments. It presents different methods of cellulose dissolution, gelation, regeneration, and drying as well as the microstructures and properties of cellulose aerogels.</style></abstract><label><style face="normal" font="default" size="100%">Ratke2023</style></label><urls><related-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1007/978-3-030-27322-4_24</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">10.1007/978-3-030-27322-4_24</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>81</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">81</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Heyer, Markus</style></author><author><style face="normal" font="default" size="100%">Esser, Burkard</style></author><author><style face="normal" font="default" size="100%">Guelhan, Ali</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Voepel, Pascal</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Mixed Oxide Aerogels with High-Performance Insulating Properties for High-Temperature Space Application</style></title><secondary-title><style face="normal" font="default" size="100%">Advanced Engineering Materials</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Advanced Engineering Materials</style></full-title></periodical><pages><style face="normal" font="default" size="100%">2300625</style></pages><volume><style face="normal" font="default" size="100%">n/a</style></volume><number><style face="normal" font="default" size="100%">n/a</style></number><keywords><keyword><style face="normal" font="default" size="100%">aerogels</style></keyword><keyword><style face="normal" font="default" size="100%">high temperature</style></keyword><keyword><style face="normal" font="default" size="100%">thermal protection</style></keyword></keywords><dates><year><style face="normal" font="default" size="100%">2023</style></year><pub-dates><date><style face="normal" font="default" size="100%">2023/08/11</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">John Wiley &amp; Sons, Ltd</style></publisher><isbn><style face="normal" font="default" size="100%">1438-1656</style></isbn><abstract><style face="normal" font="default" size="100%">Herein, a direct comparison of the thermal conductivity and stability of different silica-fiber-reinforced silica aerogels is presented. The thermal performance under high-temperature exposure within an arc-heated facility is evaluated by means of thermal propagation and stability. All aerogel materials, tested within this study, outperform the high-temperature fiber-based insulation mat in terms of thermal protection. Modification of the aerogels in the composition and opacification leads to an improvement of thermal insulation properties as well as of thermal stability against the high temperature. All materials are prepared in the form of cylindrical disks of 100?mm diameter having a thickness of 20?mm. Based on classic silica aerogel, an opacified silica aerogel and an aerogel in mullite composition, inorganic fiber-reinforce composites have been prepared and tested, and their performance is discussed comparatively. The specimens with mullite composition are intended to form mullite in?situ during application to avoid energy-costly pretreatment.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1002/adem.202300625</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1002/adem.202300625</style></electronic-resource-num><access-date><style face="normal" font="default" size="100%">2023/08/24</style></access-date></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>87</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">87</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chandrasekaran, Rajesh</style></author><author><style face="normal" font="default" size="100%">Itskov, Mikhail</style></author><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Importance of geometric parameters in modeling of porous materials – a finite element study</style></title><secondary-title><style face="normal" font="default" size="100%">PAMM</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">PAMM</style></full-title></periodical><pages><style face="normal" font="default" size="100%">e202300194</style></pages><volume><style face="normal" font="default" size="100%">23</style></volume><number><style face="normal" font="default" size="100%">3</style></number><dates><year><style face="normal" font="default" size="100%">2023</style></year></dates><isbn><style face="normal" font="default" size="100%">1617-7061</style></isbn><abstract><style face="normal" font="default" size="100%">Abstract Porous materials consist of interconnected skeletal structure around a porous space. The skeletal structure is usually formed of a solid phase and the pores are typically filled with a fluid (liquid or gas). Porous materials are characterized by two essential geometric properties: porosity and pore size distribution (PSD), which influence their bulk mechanical properties. Porosity, which is defined in terms of the ratio between the envelope and the skeletal densities, is sufficient to describe the elastic bulk properties of porous materials. Gibson and Ashby developed a power scaling law expressing the linear relation between the elastic modulus and the relative density. The PSD describes the spatial variation of the pore sizes and has recently been shown to influence the mechanical properties of porous materials. In addition to porosity and PSD, the pore characteristics, namely pore size and shape, and pore-wall size and shape, also determine the geometric properties that influence the bulk response of these materials. In this study, the importance of the above-mentioned geometric parameters in the modeling of the porous materials is studied using a computational framework. The bulk mechanical response under large deformation of various porous structures with PSD based on different probability density functions (PDF) and different combinations of other geometric properties under uniaxial compression is investigated. The sensitivity of mechanical response to these geometric parameters is studied. Interdependent parameters which are significantly influential are identified. By controlling these parameters, the synthesis of porous materials can be guided and optimized.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://onlinelibrary.wiley.com/doi/abs/10.1002/pamm.202300194</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1002/pamm.202300194</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>79</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">79</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Budtova, Tatiana</style></author><author><style face="normal" font="default" size="100%">Lokki, Tapio</style></author><author><style face="normal" font="default" size="100%">Malakooti, Sadeq</style></author><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author><author><style face="normal" font="default" size="100%">Lu, Hongbing</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Vapaavuori, Jaana</style></author><author><style face="normal" font="default" size="100%">Vivod, Stephanie L.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Acoustic Properties of Aerogels: Current Status and Prospects</style></title><secondary-title><style face="normal" font="default" size="100%">Advanced Engineering Materials</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Advanced Engineering Materials</style></full-title></periodical><pages><style face="normal" font="default" size="100%">2201137</style></pages><volume><style face="normal" font="default" size="100%">25</style></volume><number><style face="normal" font="default" size="100%">6</style></number><dates><year><style face="normal" font="default" size="100%">2023</style></year></dates><isbn><style face="normal" font="default" size="100%">1438-1656</style></isbn><abstract><style face="normal" font="default" size="100%">Noise reduction remains an important priority in the modern society, in particular, for urban areas and highly populated cities. Insulation of buildings and transport systems such as cars, trains, and airplanes has accelerated the need to develop advanced materials. Various porous materials, such as commercially available foams and granular and fibrous materials, are commonly used for sound mitigating applications. In this review, a special class of advanced porous materials, aerogels, is examined, and an overview of the current experimental and theoretical status of their acoustic properties is provided. Aerogels can be composed of inorganic matter, synthetic or natural polymers, as well as organic/inorganic composites and hybrids. Aerogels are highly porous nanostructured materials with a large number of meso- and small macropores; the mechanisms of sound absorption partly differ from those of traditional porous absorbers possessing large macropores. The understanding of the acoustic properties of aerogels is far from being complete, and experimental results remain scattered. It is demonstrated that the structure of the aerogel provides a complex three-dimensional architecture ideally suited for promising high-performance materials for acoustic mitigation systems. This is in addition to the numerous other desirable properties that include low density, low thermal conductivity, and low refractive index.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://onlinelibrary.wiley.com/doi/abs/10.1002/adem.202201137</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1002/adem.202201137</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>78</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">78</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Aney, Shivangi</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Influence of pore-structure characteristics on the mechanical properties of open-porous cellular materials</style></title><secondary-title><style face="normal" font="default" size="100%">PAMM</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">PAMM</style></full-title></periodical><pages><style face="normal" font="default" size="100%">e202200260</style></pages><volume><style face="normal" font="default" size="100%">22</style></volume><number><style face="normal" font="default" size="100%">1</style></number><dates><year><style face="normal" font="default" size="100%">2023</style></year></dates><isbn><style face="normal" font="default" size="100%">1617-7061</style></isbn><abstract><style face="normal" font="default" size="100%">Abstract The influence of the pore structure characteristics on the macroscopic mechanical properties of open-porous cellular materials has been computationally investigated in this contribution. While the effects of the pore-size distribution on the macroscopic mechanical response of open-porous cellular materials have been studied previously, the investigations regarding the effects of the pore structure characteristics are relatively scarce. The pore walls of open porous cellular materials are often modelled as beams and the pore wall structure is assumed to have a constant cross section. Although this assumption is valid for a large class of materials, insights into the influence of this assumption on the calculations of the properties of those materials that exhibit a rather pearl-necklace-like pore wall morphology are described in this paper. On comparing the simulation results for a corrugated pore-wall with that having a constant cross-section, it is observed that the maximal stresses in the pore wall may differ significantly.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://onlinelibrary.wiley.com/doi/abs/10.1002/pamm.202200260</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1002/pamm.202200260</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>74</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">74</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Aney, Shivangi</style></author><author><style face="normal" font="default" size="100%">Pandit, Prakul</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">On the origin of power-scaling exponents in silica aerogels</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Sol-Gel Science and Technology</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Journal of Sol-Gel Science and Technology</style></full-title></periodical><dates><year><style face="normal" font="default" size="100%">2023</style></year><pub-dates><date><style face="normal" font="default" size="100%">2023/06/26</style></date></pub-dates></dates><isbn><style face="normal" font="default" size="100%">1573-4846</style></isbn><abstract><style face="normal" font="default" size="100%">The macroscopic properties of open-porous cellular materials hinge upon the microscopic skeletal architecture and features of the material. Typically, bulk material properties, viz. the elastic modulus, strength of the material, thermal conductivity, and acoustic velocity, of such porous materials are expressed in terms of power-scaling laws against their density. In particular, the relation between the elastic modulus and the density has been intensively investigated. While the Gibson and Ashby model predicts an exponent of 2 for ideally connected foam-like open-cellular solids, the exponent is found to lie between 3 and 4 for silica aerogels. In this paper, we investigate the origins of this scaling exponent. Particularly, the effect of the pearl-necklace-like skeletal features of the pore walls and that of the random spatial arrangement is extensively computationally studied. It is shown that the latter is the driving factor in dictating the scaling exponent and the rest of the features play a negligible or no role in quantifying the scaling exponent.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1007/s10971-023-06156-0</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">10.1007/s10971-023-06156-0</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>73</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">73</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Rose, Alexandra</style></author><author><style face="normal" font="default" size="100%">Hofmann, Anja</style></author><author><style face="normal" font="default" size="100%">Voepel, Pascal</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Marschall, Roland</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Photocatalytic Activity and Electron Storage Capability of TiO2 Aerogels with an Adjustable Surface Area</style></title><secondary-title><style face="normal" font="default" size="100%">ACS Applied Energy Materials</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">ACS Applied Energy Materials</style></full-title></periodical><pages><style face="normal" font="default" size="100%">14966-14978</style></pages><volume><style face="normal" font="default" size="100%">5</style></volume><number><style face="normal" font="default" size="100%">12</style></number><dates><year><style face="normal" font="default" size="100%">2022</style></year><pub-dates><date><style face="normal" font="default" size="100%">2022/12/26</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">American Chemical Society</style></publisher><notes><style face="normal" font="default" size="100%">doi: 10.1021/acsaem.2c02517</style></notes><urls><related-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1021/acsaem.2c02517</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">10.1021/acsaem.2c02517</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>25</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">25</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author><author><style face="normal" font="default" size="100%">Aney, Shivangi</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Impact of pearl-necklace-like skeleton on pore sizes and mechanical properties of porous materials: A theoretical view</style></title><secondary-title><style face="normal" font="default" size="100%">AIP Advances</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">AIP Advances</style></full-title></periodical><pages><style face="normal" font="default" size="100%">105108</style></pages><volume><style face="normal" font="default" size="100%">12</style></volume><number><style face="normal" font="default" size="100%">10</style></number><dates><year><style face="normal" font="default" size="100%">2022</style></year></dates><urls><related-urls><url><style face="normal" font="default" size="100%">https://aip.scitation.org/doi/abs/10.1063/5.0112914</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1063/5.0112914</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>30</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">30</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Henn, Fabian</style></author><author><style face="normal" font="default" size="100%">Tannert, René</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Hydrophobization of Monolithic Resorcinol-Formaldehyde Xerogels by Means of Silylation</style></title><secondary-title><style face="normal" font="default" size="100%">Gels</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Gels</style></full-title></periodical><pages><style face="normal" font="default" size="100%">304</style></pages><volume><style face="normal" font="default" size="100%">8</style></volume><number><style face="normal" font="default" size="100%">5</style></number><dates><year><style face="normal" font="default" size="100%">2022</style></year></dates><isbn><style face="normal" font="default" size="100%">2310-2861</style></isbn><accession-num><style face="normal" font="default" size="100%">doi:10.3390/gels8050304</style></accession-num><urls><related-urls><url><style face="normal" font="default" size="100%">https://www.mdpi.com/2310-2861/8/5/304</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.3390/gels8050304</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>29</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">29</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Behr, Matthias</style></author><author><style face="normal" font="default" size="100%">Ganesan, Kathirvel</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Improving Polysaccharide-Based Chitin/Chitosan-Aerogel Materials by Learning from Genetics and Molecular Biology</style></title><secondary-title><style face="normal" font="default" size="100%">Materials</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Materials</style></full-title></periodical><pages><style face="normal" font="default" size="100%">1041</style></pages><volume><style face="normal" font="default" size="100%">15</style></volume><number><style face="normal" font="default" size="100%">3</style></number><dates><year><style face="normal" font="default" size="100%">2022</style></year></dates><isbn><style face="normal" font="default" size="100%">1996-1944</style></isbn><accession-num><style face="normal" font="default" size="100%">doi:10.3390/ma15031041</style></accession-num><urls><related-urls><url><style face="normal" font="default" size="100%">https://www.mdpi.com/1996-1944/15/3/1041</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.3390/ma15031041</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>28</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">28</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Aney, Shivangi</style></author><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The effect of pore sizes on the elastic behaviour of open-porous cellular materials</style></title><secondary-title><style face="normal" font="default" size="100%">Mathematics and Mechanics of Solids</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Mathematics and Mechanics of Solids</style></full-title></periodical><pages><style face="normal" font="default" size="100%">10812865221124142</style></pages><volume><style face="normal" font="default" size="100%">0</style></volume><number><style face="normal" font="default" size="100%">0</style></number><keywords><keyword><style face="normal" font="default" size="100%">Open-porous materials,Laguerre-Voronoi tessellations,relative density,pore-size distribution,pore-wall thickness,macroscopic mechanical properties</style></keyword></keywords><dates><year><style face="normal" font="default" size="100%">2022</style></year></dates><abstract><style face="normal" font="default" size="100%">The influence of the pore structure characteristics in open-porous cellular materials on their macroscopic elastic behaviour is investigated by considering three important microstructural features viz. the relative density, the pore-size distribution, and the pore-wall thickness. To this end, a microstructure-informed modelling approach is presented, where all elements of the three-dimensional (3-d) pore structure can be controlled effectively. The results show that while density does dictate the mechanical properties of open-porous solids, the effects of the pore-wall thickness and the pore-size distribution are not negligible and must be considered while developing such materials, in particular those that exhibit a poly-disperse nature and require load-bearing capabilities under finite strains.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://journals.sagepub.com/doi/abs/10.1177/10812865221124142</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.1177/10812865221124142</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>1</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">1</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author><author><style face="normal" font="default" size="100%">Gurikov, Pavel</style></author><author><style face="normal" font="default" size="100%">Kalmár, József</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Perspectives in the modeling of biopolymer aerogel networks subject to wetting</style></title><secondary-title><style face="normal" font="default" size="100%">PAMM</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">PAMM</style></full-title></periodical><pages><style face="normal" font="default" size="100%">e202000170</style></pages><volume><style face="normal" font="default" size="100%">20</style></volume><number><style face="normal" font="default" size="100%">1</style></number><dates><year><style face="normal" font="default" size="100%">2021</style></year><pub-dates><date><style face="normal" font="default" size="100%">2021/01/01</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">John Wiley &amp; Sons, Ltd</style></publisher><isbn><style face="normal" font="default" size="100%">1617-7061</style></isbn><abstract><style face="normal" font="default" size="100%">Abstract Alginate-based aerogels were shown to be non-cytotoxic and to feature good cell adhesion, thus drawing their attention towards tissue engineering and regenerative medicine [1]. To this end, their mechanical properties under dry as well as wet conditions were subsequently investigated [2]. Upon wetting, these aerogels showed strong stiffening in their mechanical behavior. In this work, a micromechanically motivated model approach to describe this phenomenon is proposed. The nanofibers in the aerogel network are considered to undergo structural rearrangement upon being subjected to water. Furthermore, the collapse of the micropores (pore diameter below 5 nm) results in the formation of local hydrogel-like network phase. The constitutive model is based upon the assumption that the total network can be decomposed into a hydrogel-like network and a restructured aerogel network. The aerogel network is described based on the micromechanical model proposed by Rege et al. [3], while the hydrogel-like network is modeled based on the phenomenological approach of Gent [4]. This first approach towards modeling shows reliable results against the experimental stress-strain curves of alginate-starch aerogels [5].</style></abstract><notes><style face="normal" font="default" size="100%">https://doi.org/10.1002/pamm.202000170</style></notes><work-type><style face="normal" font="default" size="100%">https://doi.org/10.1002/pamm.202000170</style></work-type><urls><related-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1002/pamm.202000170</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1002/pamm.202000170</style></electronic-resource-num><access-date><style face="normal" font="default" size="100%">2021/02/23</style></access-date></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>69</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">69</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author><author><style face="normal" font="default" size="100%">Aney, Shivangi</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Influence of pore-size distributions and pore-wall mechanics on the mechanical behavior of cellular solids like aerogels</style></title><secondary-title><style face="normal" font="default" size="100%">Physical Review E</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Physical Review E</style></full-title></periodical><pages><style face="normal" font="default" size="100%">043001</style></pages><volume><style face="normal" font="default" size="100%">103</style></volume><number><style face="normal" font="default" size="100%">4</style></number><dates><year><style face="normal" font="default" size="100%">2021</style></year><pub-dates><date><style face="normal" font="default" size="100%">04/02/</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">American Physical Society</style></publisher><notes><style face="normal" font="default" size="100%">PRE</style></notes><urls><related-urls><url><style face="normal" font="default" size="100%">https://link.aps.org/doi/10.1103/PhysRevE.103.043001</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1103/PhysRevE.103.043001</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>2</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">2</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Constitutive Modeling of the Densification Behavior in Open-Porous Cellular Solids</style></title></titles><pages><style face="normal" font="default" size="100%">2731</style></pages><volume><style face="normal" font="default" size="100%">14</style></volume><number><style face="normal" font="default" size="100%">11</style></number><dates><year><style face="normal" font="default" size="100%">2021</style></year></dates><isbn><style face="normal" font="default" size="100%">1996-1944</style></isbn><accession-num><style face="normal" font="default" size="100%">doi:10.3390/ma14112731</style></accession-num><urls><related-urls><url><style face="normal" font="default" size="100%">https://www.mdpi.com/1996-1944/14/11/2731</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.3390/ma14112731</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>3</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">3</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Nojabaee, Maryam</style></author><author><style face="normal" font="default" size="100%">Sievert, Brigitta</style></author><author><style face="normal" font="default" size="100%">Schwan, Marina</style></author><author><style face="normal" font="default" size="100%">Schettler, Jessica</style></author><author><style face="normal" font="default" size="100%">Warth, Frieder</style></author><author><style face="normal" font="default" size="100%">Wagner, Norbert</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Friedrich, K. Andreas</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Ultramicroporous carbon aerogels encapsulating sulfur as the cathode for lithium–sulfur batteries</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Materials Chemistry A</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Journal of Materials Chemistry A</style></full-title></periodical><dates><year><style face="normal" font="default" size="100%">2021</style></year></dates><publisher><style face="normal" font="default" size="100%">The Royal Society of Chemistry</style></publisher><isbn><style face="normal" font="default" size="100%">2050-7488</style></isbn><abstract><style face="normal" font="default" size="100%">Highly porous carbon materials employed in sulfur cathodes are of utmost importance to the charge transport, conductivity and stability of the cathode in metal–sulfur batteries. Herein, ultramicroporous carbon aerogels as conductive matrices embedding sulfur for cathode application in lithium–sulfur batteries are synthesized and investigated. Resulting from organic resorcinol–formaldehyde aerogels, the synthesized carbon aerogels feature a highly porous structure with a surface area of 500–2000 m2 g−1 and large micropore volume up to 0.6 cm3 g−1. The effective gas-phase sulfur infiltration of the carbon aerogels and the resulting confinement of sulfur in the micropores are demonstrated. It is indicated that sulfur-infiltrated microporous carbon aerogel cathodes are able to suppress the polysulfide shuttle effect, maintaining 80% (≥1000 mA h g(S)−1) and 70% (≥800 mA h g(S)−1) of the initial discharge capacity after 200 cycles at a rate of 0.3C in carbonate and ether-based electrolytes, respectively. Remarkably, the herein prepared composite cathode can still deliver a discharge capacity of at least 700 mA h g(S)−1 at a faster rate of 2C in both electrolyte systems. The cyclability and compatibility of the ether and carbonate-based electrolytes with such a composite cathode are discussed elaborately.</style></abstract><work-type><style face="normal" font="default" size="100%">10.1039/D0TA11332H</style></work-type><urls><related-urls><url><style face="normal" font="default" size="100%">http://dx.doi.org/10.1039/D0TA11332H</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.1039/D0TA11332H</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>4</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">4</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Külcü, İsmail Doğan</style></author><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Physics-informed constitutive modelling of hydrated biopolymer aerogel networks</style></title><secondary-title><style face="normal" font="default" size="100%">Soft Matter</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Soft Matter</style></full-title></periodical><dates><year><style face="normal" font="default" size="100%">2021</style></year></dates><publisher><style face="normal" font="default" size="100%">The Royal Society of Chemistry</style></publisher><isbn><style face="normal" font="default" size="100%">1744-683X</style></isbn><abstract><style face="normal" font="default" size="100%">Hydration induces significant structural rearrangements in biopolymer aerogels, resulting in a completely different mechanical behaviour compared to the one in the dry state. A network decomposition concept was earlier introduced to account for these changes, wherein the material network was decomposed into an open-porous aerogel one and a hydrogel-like one. Recent experimental evidences have supported this idea of the formation of a hydrogel-like network. Using these observations as a basis, in this paper, we present a micromechanical model describing the effect of hydration on the structural and mechanical properties of aerogels. The aerogel network is modelled based on the mechanics of their pore-walls, while the hydrogel-like network is modelled based on the statistical mechanics of their polymer chains by means of the Arruda–Boyce eight-chain model. The influence of diverse structural and material parameters on the mechanical behaviour is investigated. The effect of different degrees of wetting, from a pure aerogel to a pure hydrogel-like state, is captured by the model. The results are shown to be in good agreement with available experimental data.</style></abstract><work-type><style face="normal" font="default" size="100%">10.1039/D1SM00430A</style></work-type><urls><related-urls><url><style face="normal" font="default" size="100%">http://dx.doi.org/10.1039/D1SM00430A</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.1039/D1SM00430A</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>5</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">5</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Kamal Mohamed, Seeni Meera</style></author><author><style face="normal" font="default" size="100%">Murali Sankar, Rajavelu</style></author><author><style face="normal" font="default" size="100%">Kiran, Manikantan Syamala</style></author><author><style face="normal" font="default" size="100%">Jaisankar, Sellamuthu N.</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Mandal, Asit Baran</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Facile Preparation of Biocompatible and Transparent Silica Aerogels as Ionogels Using Choline Dihydrogen Phosphate Ionic Liquid</style></title><secondary-title><style face="normal" font="default" size="100%">Applied Science</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Applied Science</style></full-title></periodical><pages><style face="normal" font="default" size="100%">206</style></pages><volume><style face="normal" font="default" size="100%">11</style></volume><number><style face="normal" font="default" size="100%">1</style></number><dates><year><style face="normal" font="default" size="100%">2021</style></year><pub-dates><date><style face="normal" font="default" size="100%">https://doi.org/10.3390/app11010206</style></date></pub-dates></dates><urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="underline" font="default" size="100%">10.3390/app11010206</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>6</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">6</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Kamal Mohamed, Seeni Meera</style></author><author><style face="normal" font="default" size="100%">Heinrich, Charlotte</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Effect of Process Conditions on the Properties of Resorcinol-Formaldehyde Aerogel Microparticles Produced via Emulsion-Gelation Method</style></title></titles><pages><style face="normal" font="default" size="100%">2409</style></pages><volume><style face="normal" font="default" size="100%">13</style></volume><number><style face="normal" font="default" size="100%">15</style></number><dates><year><style face="normal" font="default" size="100%">2021</style></year></dates><isbn><style face="normal" font="default" size="100%">2073-4360</style></isbn><accession-num><style face="normal" font="default" size="100%">doi:10.3390/polym13152409</style></accession-num><urls><related-urls><url><style face="normal" font="default" size="100%">https://www.mdpi.com/2073-4360/13/15/2409</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.3390/polym13152409</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>27</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">27</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chandrasekaran, Rajesh</style></author><author><style face="normal" font="default" size="100%">Hillgärtner, Markus</style></author><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Itskov, Mikhail</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Geometric and finite element modeling of biopolymer aerogels to characterize their microstructural and mechanical properties</style></title><secondary-title><style face="normal" font="default" size="100%">PAMM</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">PAMM</style></full-title></periodical><pages><style face="normal" font="default" size="100%">e202100122</style></pages><volume><style face="normal" font="default" size="100%">21</style></volume><number><style face="normal" font="default" size="100%">1</style></number><dates><year><style face="normal" font="default" size="100%">2021</style></year></dates><isbn><style face="normal" font="default" size="100%">1617-7061</style></isbn><abstract><style face="normal" font="default" size="100%">Abstract Biopolymer aerogels belong to a class of highly open-porous cellular materials. Their macroscopic mechanical properties (such as elasticity or thermal conductivity) depend on microstructural features (namely pore size distribution (PSD), fiber diameter and solid fraction), which can be tailored by different synthesis and drying routes. The design of modern aerogel materials requires a better perception into the microstructure and its influence on the mechanical properties. To predict the material properties using simulation, it is significant to construct a geometric model which is sufficiently precise to represent the microstructure of real materials. A tessellation approach based on Voronoi diagrams is a powerful tool to model such cellular-like materials. In this contribution, the diversified cellular morphology of aerogels is described computationally using a Voronoi tessellation-based approach [1]. Accordingly, Voronoi tessellations are generated to create periodic representative volume elements (RVEs) resembling the microstructural properties of the cellular network. Stress-strain curves resulting from finite element simulations of these RVEs and experiments of the aerogels under compression are compared. This work is an extension of our previous Voronoi tessellation-based on the 2-d description of biopolymer aerogels [2].</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://onlinelibrary.wiley.com/doi/abs/10.1002/pamm.202100122</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1002/pamm.202100122</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>7</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">7</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chandrasekaran, Rajesh</style></author><author><style face="normal" font="default" size="100%">Hillgärtner, Markus</style></author><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Itskov, Mikhail</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Modeling the microstructure of biopolymer aerogels using Voronoi tessellation method</style></title><secondary-title><style face="normal" font="default" size="100%">PAMM</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">PAMM</style></full-title></periodical><pages><style face="normal" font="default" size="100%">e202000102</style></pages><volume><style face="normal" font="default" size="100%">20</style></volume><number><style face="normal" font="default" size="100%">1</style></number><dates><year><style face="normal" font="default" size="100%">2021</style></year><pub-dates><date><style face="normal" font="default" size="100%">2021/01/01</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">John Wiley &amp; Sons, Ltd</style></publisher><isbn><style face="normal" font="default" size="100%">1617-7061</style></isbn><abstract><style face="normal" font="default" size="100%">Abstract The bulk properties of biopolymer aerogels depend on their microstructure, which can be tailored by different synthesis and drying methods. Biopolymer aerogels are characterized by a fibrillar morphology having a cellular-like network. The recently proposed constitutive modeling approach by Rege et al. [1] has shown good predictive capabilities in describing the mechanical behavior of such aerogels. Although the model describes the cellular nature and adheres to the cell-size distributions of aerogels, it is based on the assumption that the network is made up of idealized square-shaped cells. In this contribution, the diversified cellular morphology of aerogels is described computationally using a Laguerre-Voronoi tessellation based approach [2]. The pore-size distribution (PSD) data obtained from experiments accounts for the random cell sizes within the network. Accordingly, Voronoi tessellations are generated to create periodic representative volume elements (RVEs) resembling the microstructural properties of the cellular network. This work is an extension of our previous Voronoi tessellation-based 2-d description of biopolymer aerogels [3].</style></abstract><notes><style face="normal" font="default" size="100%">https://doi.org/10.1002/pamm.202000102</style></notes><work-type><style face="normal" font="default" size="100%">https://doi.org/10.1002/pamm.202000102</style></work-type><urls><related-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1002/pamm.202000102</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1002/pamm.202000102</style></electronic-resource-num><access-date><style face="normal" font="default" size="100%">2021/02/23</style></access-date></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>8</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">8</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chandrasekaran, Rajesh</style></author><author><style face="normal" font="default" size="100%">Hillgärtner, Markus</style></author><author><style face="normal" font="default" size="100%">Ganesan, Kathirvel</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Itskov, Mikhail</style></author><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Computational design of biopolymer aerogels and predictive modelling of their nanostructure and mechanical behaviour</style></title><secondary-title><style face="normal" font="default" size="100%">Scientific Reports</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Scientific Reports</style></full-title></periodical><pages><style face="normal" font="default" size="100%">10198</style></pages><volume><style face="normal" font="default" size="100%">11</style></volume><number><style face="normal" font="default" size="100%">1</style></number><dates><year><style face="normal" font="default" size="100%">2021</style></year><pub-dates><date><style face="normal" font="default" size="100%">2021/05/13</style></date></pub-dates></dates><isbn><style face="normal" font="default" size="100%">2045-2322</style></isbn><abstract><style face="normal" font="default" size="100%">To address the challenge of reconstructing or designing the three-dimensional microstructure of nanoporous materials, we develop a computational approach by combining the random closed packing of polydisperse spheres together with the Laguerre–Voronoi tessellation. Open-porous cellular network structures that adhere to the real pore-size distributions of the nanoporous materials are generated. As an example, κ-carrageenan aerogels are considered. The mechanical structure–property relationships are further explored by means of finite elements. Here we show that one can predict the macroscopic stress–strain curve of the bulk porous material if only the pore-size distributions, solid fractions, and Young’s modulus of the pore-wall fibres are known a priori. The objective of such reconstruction and predictive modelling is to reverse engineer the parameters of their synthesis process for tailored applications. Structural and mechanical property predictions of the proposed modelling approach are shown to be in good agreement with the available experimental data. The presented approach is free of parameter-fitting and is capable of generating dispersed Voronoi structures.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1038/s41598-021-89634-1</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1038/s41598-021-89634-1</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>9</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">9</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Aney, Shivangi</style></author><author><style face="normal" font="default" size="100%">Schettler, Jessica</style></author><author><style face="normal" font="default" size="100%">Schwan, Marina</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Insights into the Micromechanics of Organic Aerogels based on Experimental and Modeling Results</style></title><secondary-title><style face="normal" font="default" size="100%">Advanced Engineering Materials</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Advanced Engineering Materials</style></full-title></periodical><volume><style face="normal" font="default" size="100%">24</style></volume><number><style face="normal" font="default" size="100%">1</style></number><keywords><keyword><style face="normal" font="default" size="100%">mechanical properties</style></keyword><keyword><style face="normal" font="default" size="100%">micromechanical modeling</style></keyword><keyword><style face="normal" font="default" size="100%">organic aerogels</style></keyword><keyword><style face="normal" font="default" size="100%">pore-wall mechanics</style></keyword><keyword><style face="normal" font="default" size="100%">resorcinol-formaldehyde</style></keyword></keywords><dates><year><style face="normal" font="default" size="100%">2021</style></year><pub-dates><date><style face="normal" font="default" size="100%">2021/03/24</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">John Wiley &amp; Sons, Ltd</style></publisher><isbn><style face="normal" font="default" size="100%">1438-1656</style></isbn><abstract><style face="normal" font="default" size="100%">While the characteristics of the macroscopic mechanical behavior of organic aerogels are well known, the mechanisms responsible for the sub-structural evolution of their networks under mechanical deformation are not fully understood. In this paper, organic aerogels from the aqueous sol-gel polymerization of resorcinol with formaldehyde are first prepared. Specifically, the resorcinol to water (R:W) molar ratio is varied for obtaining diverse highly open-cellular porous structures with mean pore-sizes ranging between 30-50 nm. The corresponding network structures are then characterized and exhibit different morphological and mechanical properties. Furthermore, a micromechanical constitutive model based on the pore-wall kinematics is proposed. While the arrays of particles forming the pore-walls are moderately connected, the pore-walls are considered to behave as solid beams under mechanical deformation. Moreover, the damage mechanisms in the pore-walls that result in the network collapse are defined. All model parameters are shown to be physically derived and their sensitivity to the macroscopic network behavior is analyzed. The model predictions are shown to be in good agreement with the experimental stress-strain data of the different aerogels. This article is protected by copyright. All rights reserved.</style></abstract><notes><style face="normal" font="default" size="100%">https://doi.org/10.1002/adem.202100095</style></notes><work-type><style face="normal" font="default" size="100%">https://doi.org/10.1002/adem.202100095</style></work-type><urls><related-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1002/adem.202100095</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1002/adem.202100095</style></electronic-resource-num><access-date><style face="normal" font="default" size="100%">2021/03/26</style></access-date></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>10</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">10</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Abdusalamov, Rasul</style></author><author><style face="normal" font="default" size="100%">Scherdel, Christian</style></author><author><style face="normal" font="default" size="100%">Itskov, Mikhail</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Reichenauer, Gudrun</style></author><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Modeling and Simulation of the Aggregation and the Structural and Mechanical Properties of Silica Aerogels</style></title><secondary-title><style face="normal" font="default" size="100%">The Journal of Physical Chemistry B</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">The Journal of Physical Chemistry B</style></full-title></periodical><dates><year><style face="normal" font="default" size="100%">2021</style></year><pub-dates><date><style face="normal" font="default" size="100%">2021/02/10</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">American Chemical Society</style></publisher><isbn><style face="normal" font="default" size="100%">1520-6106</style></isbn><urls><related-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1021/acs.jpcb.0c10311</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.1021/acs.jpcb.0c10311</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>11</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">11</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Abdusalamov, Rasul</style></author><author><style face="normal" font="default" size="100%">Pandit, Prakul</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Itskov, Mikhail</style></author><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Machine learning-based structure–property predictions in silica aerogels</style></title><secondary-title><style face="normal" font="default" size="100%">Soft Matter</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Soft Matter</style></full-title></periodical><dates><year><style face="normal" font="default" size="100%">2021</style></year></dates><publisher><style face="normal" font="default" size="100%">The Royal Society of Chemistry</style></publisher><isbn><style face="normal" font="default" size="100%">1744-683X</style></isbn><abstract><style face="normal" font="default" size="100%">The structural features in silica aerogels are known to be modelled effectively by the diffusion-limited cluster–cluster aggregation (DLCA) approach. In this paper, an artificial neural network (ANN) is developed for predicting the fractal properties of silica aerogels, given the input parameters for a DLCA algorithm. This approach of machine learning substitutes the necessity of first generating the DLCA structures and then simulating and characterising their fractal properties. The developed ANN demonstrates the capability of predicting the fractal dimension for any given set of DLCA parameters within an accuracy of R2 = 0.973. Furthermore, the same ANN is subsequently inverted for predicting the input parameters for reconstructing a DLCA model network of silica aerogels, for a given desired target fractal dimension. There, it is shown that the fractal dimension is not a unique characteristic defining the network structure of silica aerogels, and the same fractal dimension can be obtained for different sets of DLCA input parameters. However, the problem of non-uniqueness is solved by using a guided gradient descent approach for predictive modelling purposes within certain bounds of the input parameter-space. Model DLCA structures are generated from the constrained and unconstrained inversion, and are compared against several parameters, amongst them, the pore-size distributions. The constrained inversion of the ANN is shown to predict the DLCA model parameters for a desired fractal dimension within an error of 2%.</style></abstract><work-type><style face="normal" font="default" size="100%">10.1039/D1SM00307K</style></work-type><urls><related-urls><url><style face="normal" font="default" size="100%">http://dx.doi.org/10.1039/D1SM00307K</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.1039/D1SM00307K</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>24</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">24</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Abdusalamov, Rasul</style></author><author><style face="normal" font="default" size="100%">Pandit, Prakul</style></author><author><style face="normal" font="default" size="100%">Itskov, Mikhail</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Predictive modeling and simulation of silica aerogels by using aggregation algorithms</style></title><secondary-title><style face="normal" font="default" size="100%">PAMM</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">PAMM</style></full-title></periodical><pages><style face="normal" font="default" size="100%">e202100165</style></pages><volume><style face="normal" font="default" size="100%">21</style></volume><number><style face="normal" font="default" size="100%">1</style></number><dates><year><style face="normal" font="default" size="100%">2021</style></year></dates><isbn><style face="normal" font="default" size="100%">1617-7061</style></isbn><abstract><style face="normal" font="default" size="100%">Abstract Silica aerogels are highly porous solids with very low densities and thermal conductivities. Their high porosity results in a fractal morphology which has a strong influence on their mechanical properties. The geometric structure of silica aerogels can be described by diffusion-limited cluster-cluster aggregation (DLCA) models. In this work, the DLCA method is implemented to model silica aerogel networks and investigate the influence of different input parameters, as for example, varying particle sizes on their fractal properties. The resulting model networks are characterized for their fractal properties and compared with the small angle X-ray scattering (SAXS) results of silica aerogels. Furthermore, their mechanical properties are simulated using the finite element method. There, the effect of varying densities on their mechanical properties is examined. In addition, an artificial neural network (ANN) is trained based on the input parameters of the DLCA algorithm to predict the fractal properties of the silica aerogel model. By inverting the ANN it is possible to identify the necessary inputs to generate desired fractal morphologies with specific mechanical properties.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://onlinelibrary.wiley.com/doi/abs/10.1002/pamm.202100165</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1002/pamm.202100165</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>12</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">12</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Abdusalamov, Rasul</style></author><author><style face="normal" font="default" size="100%">Itskov, Mikhail</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Analysis of the fractal properties of silica aerogels using diffusion-limited aggregation</style></title><secondary-title><style face="normal" font="default" size="100%">PAMM</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">PAMM</style></full-title></periodical><pages><style face="normal" font="default" size="100%">e202000099</style></pages><volume><style face="normal" font="default" size="100%">20</style></volume><number><style face="normal" font="default" size="100%">1</style></number><dates><year><style face="normal" font="default" size="100%">2021</style></year><pub-dates><date><style face="normal" font="default" size="100%">2021/01/01</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">John Wiley &amp; Sons, Ltd</style></publisher><isbn><style face="normal" font="default" size="100%">1617-7061</style></isbn><abstract><style face="normal" font="default" size="100%">Abstract Silica aerogels are highly porous solids with very low densities and thermal conductivities. Their high porosity results in a fractal morphology which has a strong influence on mechanical properties. In this work, the diffusion-limited cluster aggregation (DLCA) method is implemented to model silica aerogel aggregates. A preliminary model based on this approach demonstrates good agreement with experimental data [1]. The influence on the fractal properties of different input parameters as for example the particle size is investigated. Moreover, the resulting geometries are compared to fractal features of silica aerogels determined by experimental data from small angle X-ray scattering (SAXS). The mechanical response of these aggregation models is analyzed by a finite element analysis (FEA) for the generated representative volume elements (RVE). The effect of varying densities on the mechanical properties, for e.g., Young&apos;s modulus, is further elucidated.</style></abstract><notes><style face="normal" font="default" size="100%">https://doi.org/10.1002/pamm.202000099</style></notes><work-type><style face="normal" font="default" size="100%">https://doi.org/10.1002/pamm.202000099</style></work-type><urls><related-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1002/pamm.202000099</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1002/pamm.202000099</style></electronic-resource-num><access-date><style face="normal" font="default" size="100%">2021/02/23</style></access-date></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>13</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">13</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Schwan, Marina</style></author><author><style face="normal" font="default" size="100%">Schettler, Jessica</style></author><author><style face="normal" font="default" size="100%">Badaczewski, Felix M.</style></author><author><style face="normal" font="default" size="100%">Heinrich, Charlotte</style></author><author><style face="normal" font="default" size="100%">Smarsly, Bernd M.</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The effect of pulverization methods on the microstructure of stiff, ductile, and flexible carbon aerogels</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Materials Science</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Journal of Materials Science</style></full-title></periodical><pages><style face="normal" font="default" size="100%">5861-5879</style></pages><volume><style face="normal" font="default" size="100%">55</style></volume><number><style face="normal" font="default" size="100%">14</style></number><dates><year><style face="normal" font="default" size="100%">2020</style></year><pub-dates><date><style face="normal" font="default" size="100%">2020/05/01</style></date></pub-dates></dates><isbn><style face="normal" font="default" size="100%">1573-4803</style></isbn><abstract><style face="normal" font="default" size="100%">Carbon aerogels find application in many fields. In most of the applications, they are used as powders and thus need to be pulverized. However, the pulverization could induce various changes in the microstructure of carbon aerogels. The extent of changes depends not only on the dominant forces of used technique, but also on the mechanical and structural properties of initial monolithic samples. In the present work, we discuss the influence of grinding, milling in shaker cryo-mill, and planetary ball mill on stiff, ductile and flexible carbon aerogels. Scanning electron microscopy and transmission electron microscopy images, gas sorption techniques, wide-angle X-ray scattering, and Raman spectroscopy show a strong dependency of the introduced energy amount while pulverization on the structure modification. Results show that stiff carbon aerogels do not undergo noticeable changes. In contrast, ductile carbon aerogels are very sensitive to friction forces. Soft and flexible carbon aerogels undergo drastic changes in the microstructure.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1007/s10853-020-04397-w</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.1007/s10853-020-04397-w</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>14</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">14</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Santos-Rosales, Víctor</style></author><author><style face="normal" font="default" size="100%">Alvarez-Rivera, Gerardo</style></author><author><style face="normal" font="default" size="100%">Hillgärtner, Markus</style></author><author><style face="normal" font="default" size="100%">Cifuentes, Alejandro</style></author><author><style face="normal" font="default" size="100%">Itskov, Mikhail</style></author><author><style face="normal" font="default" size="100%">García-González, Carlos A.</style></author><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Stability Studies of Starch Aerogel Formulations for Biomedical Applications</style></title><secondary-title><style face="normal" font="default" size="100%">Biomacromolecules</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Biomacromolecules</style></full-title></periodical><pages><style face="normal" font="default" size="100%">5336-5344</style></pages><volume><style face="normal" font="default" size="100%">21</style></volume><number><style face="normal" font="default" size="100%">12</style></number><dates><year><style face="normal" font="default" size="100%">2020</style></year><pub-dates><date><style face="normal" font="default" size="100%">2020/12/14</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">American Chemical Society</style></publisher><isbn><style face="normal" font="default" size="100%">1525-7797</style></isbn><urls><related-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1021/acs.biomac.0c01414</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.1021/acs.biomac.0c01414</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>15</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">15</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author><author><style face="normal" font="default" size="100%">Schwan, Marina</style></author><author><style face="normal" font="default" size="100%">Chernova, Liudmila</style></author><author><style face="normal" font="default" size="100%">Hillgärtner, Markus</style></author><author><style face="normal" font="default" size="100%">Itskov, Mikhail</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Microstructural and mechanical characterization of carbon aerogels: An in-situ and digital image correlation-based study</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Non-Crystalline Solids</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Journal of Non-Crystalline Solids</style></full-title></periodical><pages><style face="normal" font="default" size="100%">119568</style></pages><volume><style face="normal" font="default" size="100%">529</style></volume><keywords><keyword><style face="normal" font="default" size="100%">Carbon aerogels</style></keyword><keyword><style face="normal" font="default" size="100%">scanning electron microscopy</style></keyword><keyword><style face="normal" font="default" size="100%">Digital image correlation</style></keyword><keyword><style face="normal" font="default" size="100%">Uniaxial tests</style></keyword><keyword><style face="normal" font="default" size="100%">Three-point bending tests</style></keyword></keywords><dates><year><style face="normal" font="default" size="100%">2020</style></year><pub-dates><date><style face="normal" font="default" size="100%">2020/02/01/</style></date></pub-dates></dates><isbn><style face="normal" font="default" size="100%">0022-3093</style></isbn><abstract><style face="normal" font="default" size="100%">The mechanical behavior of carbon aerogels is not very well understood, presenting a bottle-neck in synthesizing aerogels for specific applications where mechanical loads play a role. Accordingly, in this paper, three different types of carbon aerogels with varying mechanical properties and flexibility are synthesized and analyzed. The morphology is characterized by using a scanning electron microscope (SEM) and nitrogen adsorption-desorption isotherms. The mechanical behavior is investigated under uniaxial quasistatic compression as well as in-situ compression under a SEM. While in-situ tests reveal microstructural evolution under deformation, the macroscopic deformation is described by the digital image correlation. Based on cyclic compression tests with step-wise increasing strain amplitude, novel empirical relations are proposed to describe the damage characteristics such as energy dissipation and residual deformation. Furthermore, while testing carbon aerogels under tension is not very feasible, three-point bending tests are conducted and the resulting flexural properties of carbon aerogels are identified.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S0022309319304399</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1016/j.jnoncrysol.2019.119568</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>16</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">16</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author><author><style face="normal" font="default" size="100%">Külcü, İsmail Doğan</style></author><author><style face="normal" font="default" size="100%">Gurikov, Pavel</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Stiffening of biopolymer aerogel networks upon wetting: A model-based study</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Non-Crystalline Solids</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Journal of Non-Crystalline Solids</style></full-title></periodical><pages><style face="normal" font="default" size="100%">119859</style></pages><volume><style face="normal" font="default" size="100%">531</style></volume><keywords><keyword><style face="normal" font="default" size="100%">Biopolymer</style></keyword><keyword><style face="normal" font="default" size="100%">Wetting</style></keyword><keyword><style face="normal" font="default" size="100%">Aerogel</style></keyword><keyword><style face="normal" font="default" size="100%">Hydrogel</style></keyword><keyword><style face="normal" font="default" size="100%">Model</style></keyword></keywords><dates><year><style face="normal" font="default" size="100%">2020</style></year><pub-dates><date><style face="normal" font="default" size="100%">2020/03/01/</style></date></pub-dates></dates><isbn><style face="normal" font="default" size="100%">0022-3093</style></isbn><abstract><style face="normal" font="default" size="100%">The mechanism behind the stiffening effect observed in the stress-strain response of alginate-starch aerogels upon being exposed to wetting is investigated in this paper, via a physically motivated model approach. A network decomposition concept is introduced, whereby the highly nanoporous network is decomposed into a swollen aerogel network and a hydrogel-like network. The aerogel network is modeled by considering idealized square-shaped microcells of varying sizes. An attempt is made to explain the stiffening of the network, upon wetting, based on changes in the fibril characteristics of the aerogel network upon swelling and formation of a hydrogel-like phase in the microporous region. In this first approach, the aerogel network is described based on a micro-mechanical model, while the hydrogel-like network is described using a phenomenological one. The results of the proposed model idea are in very good agreement with the experimental data of alginate-starch aerogels under different degrees of wetting.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S002230931930729X</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1016/j.jnoncrysol.2019.119859</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>17</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">17</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author><author><style face="normal" font="default" size="100%">Patil, Sandeep P.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">On the Molecular to Continuum Modeling of Fiber-Reinforced Composites</style></title><secondary-title><style face="normal" font="default" size="100%">Advanced Theory and Simulations</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Advanced Theory and Simulations</style></full-title></periodical><pages><style face="normal" font="default" size="100%">1900211</style></pages><volume><style face="normal" font="default" size="100%">3</style></volume><number><style face="normal" font="default" size="100%">4</style></number><keywords><keyword><style face="normal" font="default" size="100%">carbon nanotubes</style></keyword><keyword><style face="normal" font="default" size="100%">fiber-reinforced composites</style></keyword><keyword><style face="normal" font="default" size="100%">multiscale models</style></keyword><keyword><style face="normal" font="default" size="100%">silica aerogels</style></keyword></keywords><dates><year><style face="normal" font="default" size="100%">2020</style></year><pub-dates><date><style face="normal" font="default" size="100%">2020/04/01</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">John Wiley &amp; Sons, Ltd</style></publisher><isbn><style face="normal" font="default" size="100%">2513-0390</style></isbn><abstract><style face="normal" font="default" size="100%">Abstract A multiscale approach to model fiber-reinforced composites, those that are characterized by an isotropic orientation of fibers, is presented. To this end, a bottom-up approach is used to formulate a hierarchical model. The primary basis for the mesoscopic description revolves around the assumption that the composite network consists of fibers resting on foundations of the native material matrix. Molecular dynamics (MD) simulations of such fibers on foundations are performed, and crucial material parameters, such as the stiffness of the particle matrix and Young&apos;s modulus of the fibers are evaluated. Subsequently, a micro-mechanical constitutive model is formulated, wherein fiber-reinforced composites are characterized by a homogeneous distribution and an isotropic orientation of fibers. The fibers are modeled as beams undergoing bending and stretching while resting on Winkler-type of elastic foundations. The 3D macroscopic network behavior is finally presented. As an example, the particle matrix used is a silica aerogel and the fibers are modeled as double-walled carbon nanotubes. In the proposed modeling approach, MD simulations are shown to provide a physical estimation of the micro-mechanical model parameters.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1002/adts.201900211</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.1002/adts.201900211</style></electronic-resource-num><access-date><style face="normal" font="default" size="100%">2020/10/15</style></access-date></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>18</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">18</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Heyer, Markus</style></author><author><style face="normal" font="default" size="100%">Berkefeld, André</style></author><author><style face="normal" font="default" size="100%">Voepel, Pascal</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Advanced Opacified Fiber-Reinforced Silica-Based Aerogel Composites for Superinsulation of Exhaust Tubing Systems in Semi-Stationary Motors</style></title><secondary-title><style face="normal" font="default" size="100%">Materials</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Materials</style></full-title></periodical><volume><style face="normal" font="default" size="100%">13</style></volume><number><style face="normal" font="default" size="100%">12</style></number><keywords><keyword><style face="normal" font="default" size="100%">silica aerogel</style></keyword><keyword><style face="normal" font="default" size="100%">fiber reinforcement</style></keyword><keyword><style face="normal" font="default" size="100%">opacifiers</style></keyword><keyword><style face="normal" font="default" size="100%">super insulation</style></keyword><keyword><style face="normal" font="default" size="100%">boehmite particles</style></keyword><keyword><style face="normal" font="default" size="100%">high temperature</style></keyword><keyword><style face="normal" font="default" size="100%">generic part</style></keyword><keyword><style face="normal" font="default" size="100%">manufacturing</style></keyword></keywords><dates><year><style face="normal" font="default" size="100%">2020</style></year></dates><isbn><style face="normal" font="default" size="100%">1996-1944</style></isbn><abstract><style face="normal" font="default" size="100%">Within this study, monolithic three-dimensional silica aerogel (SA) composite parts with super insulating properties are presented. A generic part based on fiber-reinforced (FR) silica aerogel for thermal insulation of the exhaust tubing system&amp;mdash;to keep the exhaust gases as hot as possible to improve the efficiency of the catalyst system&amp;mdash;was produced via a sol-gel-based molding process in combination with a supercritical drying using scCO2. A thermal conductivity of 16 mW m&amp;minus;1 K&amp;minus;1 was measured via a heat flow meter technique. In this manuscript, we present a full cycle of the material compound design, starting with fundamental material evaluation including aerogel optimization, opacifier influence, and casting process. The obtained generic part in shape of a half-shell for pipe insulation is characterized under real conditions.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.3390/ma13122677</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.3390/ma13122677</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>19</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">19</key></foreign-keys><ref-type name="Book Section">5</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Seeni Meera, K.</style></author><author><style face="normal" font="default" size="100%">Arunbabu, D.</style></author></authors><secondary-authors><author><style face="normal" font="default" size="100%">Gnanasekaran, Dhorali</style></author></secondary-authors></contributors><titles><title><style face="normal" font="default" size="100%">Magnetic Cellulose Green Nanocomposite Adsorbents for the Removal of Heavy Metal Ions in Water/Wastewater</style></title><secondary-title><style face="normal" font="default" size="100%">Green Biopolymers and their Nanocomposites</style></secondary-title></titles><pages><style face="normal" font="default" size="100%">423-437</style></pages><dates><year><style face="normal" font="default" size="100%">2019</style></year><pub-dates><date><style face="normal" font="default" size="100%">2019//</style></date></pub-dates></dates><pub-location><style face="normal" font="default" size="100%">Singapore</style></pub-location><publisher><style face="normal" font="default" size="100%">Springer Singapore</style></publisher><isbn><style face="normal" font="default" size="100%">978-981-13-8063-1</style></isbn><abstract><style face="normal" font="default" size="100%">In the recent days, control of water contamination and treatment of wastewater is a challenging task throughout the globe because of their impact on human health. The most commonly employed method for the removal of organic pollutants especially toxic heavy metal ions from water/wastewater is adsorption using an adsorbent. There are various types of adsorbents available ranging from synthetic polymers like chelating resins, ion-exchange resins, polystyrene, and sulfonate resins. However, high cost and regeneration difficulties are associated with the use of these synthetic polymer adsorbents. In view of the above difficulties, researchers are focusing on the development of low-cost adsorbents from naturally available green biopolymers like polysaccharides. Cellulose is one among the most frequently used green polysaccharide to prepare various types of functional adsorbent materials at low cost. Even though, cellulose alone could not give a satisfactory performance on the adsorption or chelation of heavy metal ions from water/wastewater solution. To improve the adsorption capacity and achieve easy separation of cellulose-based green adsorbents, the magnetization of the adsorbent is a significant and efficient route. Magnetic adsorbent materials provide excellent water purification without any contaminants and also have the ability to treat large quantities of water/wastewater within a short span of time. Often, iron oxide nanoparticles (Fe2O3/Fe3O4) had been utilized for environmental remediation because of their superior advantages such as large surface area, biocompatibility, less energy requirement, low toxicity, and better separation ability. This chapter will provide a broader perspective of magnetic cellulose green nanocomposites and their use as an adsorbent for the removal of toxic heavy metal ions from water/wastewater.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1007/978-981-13-8063-1_18</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.1007/978-981-13-8063-1_18</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>20</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">20</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author><author><style face="normal" font="default" size="100%">Voepel, Pascal</style></author><author><style face="normal" font="default" size="100%">Okumus, Emrah</style></author><author><style face="normal" font="default" size="100%">Hillgärtner, Markus</style></author><author><style face="normal" font="default" size="100%">Itskov, Mikhail</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Temperature-Dependent Stiffening and Inelastic Behavior of Newly Synthesized Fiber-Reinforced Super Flexible Silica Aerogels</style></title><secondary-title><style face="normal" font="default" size="100%">Materials</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Materials</style></full-title></periodical><volume><style face="normal" font="default" size="100%">12</style></volume><number><style face="normal" font="default" size="100%">18</style></number><keywords><keyword><style face="normal" font="default" size="100%">super flexible aerogel</style></keyword><keyword><style face="normal" font="default" size="100%">fiber-reinforcement</style></keyword><keyword><style face="normal" font="default" size="100%">insulation</style></keyword><keyword><style face="normal" font="default" size="100%">temperature dependency</style></keyword><keyword><style face="normal" font="default" size="100%">mechanical properties</style></keyword></keywords><dates><year><style face="normal" font="default" size="100%">2019</style></year></dates><isbn><style face="normal" font="default" size="100%">1996-1944</style></isbn><abstract><style face="normal" font="default" size="100%">In recent years, flexible silica aerogels have gained significant attention, owing to their excellent thermal and acoustic insulation properties accompanied by mechanical flexibility. Fiber reinforcement of such aerogels results in a further enhancement of the strength and durability of the composite, while retaining the excellent insulation properties. In this paper, the influence of four different kinds of fibers within a flexible silica aerogel matrix is studied and reported. First, a description of the synthesis procedure and the resulting morphology of the four aerogel composites is presented. Their mechanical behavior under uniaxial quasi-static tension and compression is investigated, particularly their performance under uniaxial compression at different temperature conditions (50 &amp;deg;C, 0 &amp;deg;C, and &amp;minus;50 &amp;deg;C). The reinforcement of the flexible silica aerogels with four different fiber types only marginally influences the thermal conductivity but strongly enhances their mechanical properties.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.3390/ma12182878</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.3390/ma12182878</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>21</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">21</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author><author><style face="normal" font="default" size="100%">Hillgärtner, Markus</style></author><author><style face="normal" font="default" size="100%">Itskov, Mikhail</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Mechanics of biopolymer aerogels based on microstructures generated from 2-d Voronoi tessellations</style></title><secondary-title><style face="normal" font="default" size="100%">The Journal of Supercritical Fluids</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">The Journal of Supercritical Fluids</style></full-title></periodical><pages><style face="normal" font="default" size="100%">24-29</style></pages><volume><style face="normal" font="default" size="100%">151</style></volume><keywords><keyword><style face="normal" font="default" size="100%">Voronoi tessellation</style></keyword><keyword><style face="normal" font="default" size="100%">Aerogel</style></keyword><keyword><style face="normal" font="default" size="100%">Pore-size</style></keyword><keyword><style face="normal" font="default" size="100%">Representative volume element</style></keyword><keyword><style face="normal" font="default" size="100%">Periodic boundary condition</style></keyword></keywords><dates><year><style face="normal" font="default" size="100%">2019</style></year><pub-dates><date><style face="normal" font="default" size="100%">2019/09/01/</style></date></pub-dates></dates><isbn><style face="normal" font="default" size="100%">0896-8446</style></isbn><abstract><style face="normal" font="default" size="100%">In this paper, the heterogeneous morphology of biopolymer aerogels is described using a 2-d Voronoi tessellation, which accounts for the randomized cell shapes of aerogels and adheres to the pore-size distributions obtained from experimental data. Accordingly, a two-dimensional periodic representative volume element (RVE) has been generated and simulated under compression. In particular, the sensitivity of the varying microstructural parameters within the RVE is analyzed. It is realized that the fiber diameter, the pore-size distribution, and the density of the cells within the aerogel network show a significant influence on their mechanical response. The trends of the model predictions are qualitatively in good agreement with the macroscopic experimental data of biopolymer aerogels.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S0896844618308684</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1016/j.supflu.2019.04.018</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>33</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">33</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Naraparaju, Ravisankar</style></author><author><style face="normal" font="default" size="100%">Gomez Chavez, Juan J.</style></author><author><style face="normal" font="default" size="100%">Niemeyer, Philipp</style></author><author><style face="normal" font="default" size="100%">Hess, Kai-Uwe</style></author><author><style face="normal" font="default" size="100%">Song, Wenjia</style></author><author><style face="normal" font="default" size="100%">Dingwell, Donald B.</style></author><author><style face="normal" font="default" size="100%">Lokachari, Siddharth</style></author><author><style face="normal" font="default" size="100%">Ramana, C. V.</style></author><author><style face="normal" font="default" size="100%">Schulz, Uwe</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Estimation of CMAS infiltration depth in EB-PVD TBCs: A new constraint model supported with experimental approach</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of the European Ceramic Society</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Journal of the European Ceramic Society</style></full-title></periodical><pages><style face="normal" font="default" size="100%">2936-2945</style></pages><volume><style face="normal" font="default" size="100%">39</style></volume><number><style face="normal" font="default" size="100%">9</style></number><keywords><keyword><style face="normal" font="default" size="100%">CMAS</style></keyword><keyword><style face="normal" font="default" size="100%">EB-PVD</style></keyword><keyword><style face="normal" font="default" size="100%">Infiltration kinetics</style></keyword><keyword><style face="normal" font="default" size="100%">7YSZ</style></keyword></keywords><dates><year><style face="normal" font="default" size="100%">2019</style></year><pub-dates><date><style face="normal" font="default" size="100%">2019/08/01/</style></date></pub-dates></dates><isbn><style face="normal" font="default" size="100%">0955-2219</style></isbn><abstract><style face="normal" font="default" size="100%">Two standard 7YSZ coatings were deposited by EB-PVD techniques and tested against CMAS infiltration at short time intervals (up to 8 min.) at 1250 °C in air. They exhibited different microstructures, i.e. porosities and microstructural features. Two species of CMAS with different compositions were used and their viscosities were determined using the concentric cylinder method and their contact angles were measured using high temperature heating microscopy. The theoretical viscosities, which were calculated using a statistical model based on the chemical composition of the melts, differed from the measured values of the viscosities by one order of magnitude. A large variation in the contact angles within a very short range of temperature (1243–1266 °C) was observed as well. The porosity and surface area measurements were performed on both EB-PVD microstructures using the nitrogen physisorption method. Additionally, the produced coatings exhibited porosities of 14.5 and 29.5 percent and the infiltration experiments have shown that the more porous coating provides higher infiltration resistance. The effect of porosity on CMAS infiltration kinetics was investigated and the results elucidate that the porosity network plays a more preeminent role than the amount of porosity. The experimental infiltration results have been compared with calculated infiltration data using a novel mathematical approach proposed in previous studies in which the permeability of the coatings is assessed with two contrasting methods termed “concentric pipe” and “open pipe” models. The infiltration was calculated by incorporating the experimentally determined properties such as contact angle, viscosity and porosity. A fitting parameter has been derived from the equations for the geometry factor for both microstructures. The calculated and experimental results are in good agreement with the concentric pipe model supporting the validity of this CMAS infiltration model.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://www.sciencedirect.com/science/article/pii/S0955221919301335</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1016/j.jeurceramsoc.2019.02.040</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>32</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">32</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Maleki, Hajar</style></author><author><style face="normal" font="default" size="100%">Shahbazi, Mohammad-Ali</style></author><author><style face="normal" font="default" size="100%">Montes, Susan</style></author><author><style face="normal" font="default" size="100%">Hosseini, Seyed Hojjat</style></author><author><style face="normal" font="default" size="100%">Eskandari, Mohammad Reza</style></author><author><style face="normal" font="default" size="100%">Zaunschirm, Stefan</style></author><author><style face="normal" font="default" size="100%">Verwanger, Thomas</style></author><author><style face="normal" font="default" size="100%">Mathur, Sanjay</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Krammer, Barbara</style></author><author><style face="normal" font="default" size="100%">Hüsing, Nicola</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Mechanically Strong Silica-Silk Fibroin Bioaerogel: A Hybrid Scaffold with Ordered Honeycomb Micromorphology and Multiscale Porosity for Bone Regeneration</style></title><secondary-title><style face="normal" font="default" size="100%">ACS Applied Materials &amp; Interfaces</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">ACS Applied Materials &amp; Interfaces</style></full-title></periodical><pages><style face="normal" font="default" size="100%">17256-17269</style></pages><volume><style face="normal" font="default" size="100%">11</style></volume><number><style face="normal" font="default" size="100%">19</style></number><dates><year><style face="normal" font="default" size="100%">2019</style></year><pub-dates><date><style face="normal" font="default" size="100%">2019/05/15</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">American Chemical Society</style></publisher><isbn><style face="normal" font="default" size="100%">1944-8244</style></isbn><notes><style face="normal" font="default" size="100%">doi: 10.1021/acsami.9b04283</style></notes><urls><related-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1021/acsami.9b04283</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.1021/acsami.9b04283</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>31</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">31</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Heinrich, Charlotte</style></author><author><style face="normal" font="default" size="100%">Niedner, Lucas</style></author><author><style face="normal" font="default" size="100%">Oberhausen, Bastian</style></author><author><style face="normal" font="default" size="100%">Kickelbick, Guido</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Surface-Charged Zirconia Nanoparticles Prepared by Organophosphorus Surface Functionalization with Ammonium or Sulfonate Groups</style></title><secondary-title><style face="normal" font="default" size="100%">Langmuir</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Langmuir</style></full-title></periodical><pages><style face="normal" font="default" size="100%">11369-11379</style></pages><volume><style face="normal" font="default" size="100%">35</style></volume><number><style face="normal" font="default" size="100%">35</style></number><dates><year><style face="normal" font="default" size="100%">2019</style></year><pub-dates><date><style face="normal" font="default" size="100%">2019/09/03</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">American Chemical Society</style></publisher><isbn><style face="normal" font="default" size="100%">0743-7463</style></isbn><notes><style face="normal" font="default" size="100%">doi: 10.1021/acs.langmuir.9b01093</style></notes><urls><related-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1021/acs.langmuir.9b01093</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.1021/acs.langmuir.9b01093</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>22</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">22</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Ganesan, Kathirvel</style></author><author><style face="normal" font="default" size="100%">Barowski, Adam</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Influence of hierarchical porous structures on the mechanical properties of cellulose aerogels</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Sol-Gel Science and Technology</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Journal of Sol-Gel Science and Technology</style></full-title></periodical><pages><style face="normal" font="default" size="100%">156-165</style></pages><volume><style face="normal" font="default" size="100%">89</style></volume><number><style face="normal" font="default" size="100%">1</style></number><dates><year><style face="normal" font="default" size="100%">2019</style></year><pub-dates><date><style face="normal" font="default" size="100%">2019/01/01</style></date></pub-dates></dates><isbn><style face="normal" font="default" size="100%">1573-4846</style></isbn><abstract><style face="normal" font="default" size="100%">Aerogels of cellulose exhibit remarkable mechanical properties as a function of density. Modifying the pore volume in classical cellulose aerogels using sacrificial template methods provide scaffold like microstructure. In the present study, we have developed aerogels of cellulose scaffolds having almost same density values but differ in microstructure and analysed the influence on the mechanical properties of bulk materials. This study can give an insight into the materials design for advanced engineering materials. Employing four surfactants having difference in hydrophilic-lipophilic balance (HLB), namely polyoxyethylene tert-octylphenyl ether (PT), polyoxyethylene (20) oleyl ether (PO), polyoxyethylene (40) nonylphenyl ether (PN) and polyoxyethylene (100) stearyl ether (PS), the cellulose scaffolds with hierarchical porous structures were developed. The mechanical properties of cellulose scaffolds were compared with classical pure cellulose aerogels. The results indicate that the solid fraction of cellulose nanofibers per unit volume of cell walls of scaffolds plays an important role in determining the elastic properties and strength. As the nanofibrils support the cell walls of scaffolds, Young’s modulus can be improved if the concentration of cellulose nanofibers is high at the cell walls or cell wall thickness is larger. The scaffold materials of this kind could be used as supporting materials with desired properties for filter, catalysis and biomedicine.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1007/s10971-018-4828-2</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.1007/s10971-018-4828-2</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>23</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">23</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Ganesan, Kathirvel</style></author><author><style face="normal" font="default" size="100%">Barowski, Adam</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Gas Permeability of Cellulose Aerogels with a Designed Dual Pore Space System</style></title><secondary-title><style face="normal" font="default" size="100%">Molecules</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Molecules</style></full-title></periodical><pages><style face="normal" font="default" size="100%">2688</style></pages><volume><style face="normal" font="default" size="100%">24</style></volume><dates><year><style face="normal" font="default" size="100%">2019</style></year><pub-dates><date><style face="normal" font="default" size="100%">2019/07/22</style></date></pub-dates></dates><urls><related-urls><url><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.3390/molecules24152688</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.3390/molecules24152688</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>39</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">39</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">White, Lauren S.</style></author><author><style face="normal" font="default" size="100%">Selden, Tyler</style></author><author><style face="normal" font="default" size="100%">Bertino, Massimo F.</style></author><author><style face="normal" font="default" size="100%">Cartin, Charles</style></author><author><style face="normal" font="default" size="100%">Angello, Joseph</style></author><author><style face="normal" font="default" size="100%">Schwan, Marina</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Fabrication of Mechanically Strong Honeycombs with Aerogel Cores</style></title><secondary-title><style face="normal" font="default" size="100%">Industrial &amp; Engineering Chemistry Research</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Industrial &amp; Engineering Chemistry Research</style></full-title></periodical><pages><style face="normal" font="default" size="100%">1197-1206</style></pages><volume><style face="normal" font="default" size="100%">57</style></volume><number><style face="normal" font="default" size="100%">4</style></number><dates><year><style face="normal" font="default" size="100%">2018</style></year><pub-dates><date><style face="normal" font="default" size="100%">2018/01/31</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">American Chemical Society</style></publisher><isbn><style face="normal" font="default" size="100%">0888-5885</style></isbn><notes><style face="normal" font="default" size="100%">doi: 10.1021/acs.iecr.7b04058</style></notes><urls><related-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1021/acs.iecr.7b04058</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.1021/acs.iecr.7b04058</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>40</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">40</key></foreign-keys><ref-type name="Book Section">5</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author><author><style face="normal" font="default" size="100%">Itskov, Mikhail</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Chapter 8 Modelling and Simulations of Polysaccharide and Protein Based Aerogels</style></title><secondary-title><style face="normal" font="default" size="100%">Biobased Aerogels: Polysaccharide and Protein-based Materials</style></secondary-title></titles><pages><style face="normal" font="default" size="100%">129-150</style></pages><dates><year><style face="normal" font="default" size="100%">2018</style></year></dates><publisher><style face="normal" font="default" size="100%">The Royal Society of Chemistry</style></publisher><isbn><style face="normal" font="default" size="100%">978-1-78262-765-4</style></isbn><urls><related-urls><url><style face="normal" font="default" size="100%">http://dx.doi.org/10.1039/9781782629979-00129</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.1039/9781782629979-00129</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>36</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">36</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author><author><style face="normal" font="default" size="100%">Preibisch, Imke</style></author><author><style face="normal" font="default" size="100%">Schestakow, Maria</style></author><author><style face="normal" font="default" size="100%">Ganesan, Kathirvel</style></author><author><style face="normal" font="default" size="100%">Gurikov, Pavel</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Smirnova, Irina</style></author><author><style face="normal" font="default" size="100%">Itskov, Mikhail</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Correlating Synthesis Parameters to Morphological Entities: Predictive Modeling of Biopolymer Aerogels</style></title><secondary-title><style face="normal" font="default" size="100%">Materials</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Materials</style></full-title></periodical><pages><style face="normal" font="default" size="100%">1670</style></pages><volume><style face="normal" font="default" size="100%">11</style></volume><number><style face="normal" font="default" size="100%">9</style></number><dates><year><style face="normal" font="default" size="100%">2018</style></year></dates><isbn><style face="normal" font="default" size="100%">1996-1944</style></isbn><accession-num><style face="normal" font="default" size="100%">doi:10.3390/ma11091670</style></accession-num><urls><related-urls><url><style face="normal" font="default" size="100%">https://www.mdpi.com/1996-1944/11/9/1670</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.3390/ma11091670</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>37</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">37</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Preibisch, Imke</style></author><author><style face="normal" font="default" size="100%">Niemeyer, Philipp</style></author><author><style face="normal" font="default" size="100%">Yusufoglu, Yusuf</style></author><author><style face="normal" font="default" size="100%">Gurikov, Pavel</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Smirnova, Irina</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Polysaccharide-Based Aerogel Bead Production via Jet Cutting Method</style></title><secondary-title><style face="normal" font="default" size="100%">Materials</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Materials</style></full-title></periodical><pages><style face="normal" font="default" size="100%">1287</style></pages><volume><style face="normal" font="default" size="100%">11</style></volume><number><style face="normal" font="default" size="100%">8</style></number><dates><year><style face="normal" font="default" size="100%">2018</style></year></dates><isbn><style face="normal" font="default" size="100%">1996-1944</style></isbn><accession-num><style face="normal" font="default" size="100%">doi:10.3390/ma11081287</style></accession-num><urls><related-urls><url><style face="normal" font="default" size="100%">https://www.mdpi.com/1996-1944/11/8/1287</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.3390/ma11081287</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>35</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">35</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Ganesan, Kathirvel</style></author><author><style face="normal" font="default" size="100%">Heyer, Markus</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Facile Preparation of Nanofibrillar Networks of “Ureido-Chitin” Containing Ureido and Amine as Chelating Functional Groups</style></title><secondary-title><style face="normal" font="default" size="100%">Chemistry – A European Journal</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Chemistry – A European Journal</style></full-title></periodical><pages><style face="normal" font="default" size="100%">19332-19340</style></pages><volume><style face="normal" font="default" size="100%">24</style></volume><number><style face="normal" font="default" size="100%">72</style></number><dates><year><style face="normal" font="default" size="100%">2018</style></year></dates><isbn><style face="normal" font="default" size="100%">0947-6539</style></isbn><abstract><style face="normal" font="default" size="100%">Abstract Aerogels of polysaccharides with chelating functions can be useful as supports in many applications because of their hosting properties. This work demonstrates a facile method for the preparation of aerogels of chitosan derivative “ureido-chitin”, containing ureido functional groups. The nanofibrillar networks of “ureido-chitin” were produced by the nucleophilic addition of amine groups of chitosan with isocyanic acid prepared in situ. The presence of ureido functional groups was confirmed by FTIR, solid-state CP-MAS 13C and 15N NMR analyses. No crosslinking of molecular chains was observed. The maximum degree of ureido functional groups was estimated to be about 66 %. Characterization by powder XRD confirmed that the polymer chains self-assembled, with the chitin polymers oriented in a highly ordered crystalline structure. The nanofibrillar networks showed no solubility under either aqueous acidic or alkaline conditions. Bio-based hosting materials of this kind with two different hosting functional groups, ureido and amine, can potentially be utilized for a wide range of applications in aqueous medium, including filters, catalysis and biomedicine.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://chemistry-europe.onlinelibrary.wiley.com/doi/abs/10.1002/chem.201804405</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1002/chem.201804405</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>34</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">34</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Ganesan, Kathirvel</style></author><author><style face="normal" font="default" size="100%">Budtova, Tatiana</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author><author><style face="normal" font="default" size="100%">Gurikov, Pavel</style></author><author><style face="normal" font="default" size="100%">Baudron, Victor</style></author><author><style face="normal" font="default" size="100%">Preibisch, Imke</style></author><author><style face="normal" font="default" size="100%">Niemeyer, Philipp</style></author><author><style face="normal" font="default" size="100%">Smirnova, Irina</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Review on the Production of Polysaccharide Aerogel Particles</style></title><secondary-title><style face="normal" font="default" size="100%">Materials</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Materials</style></full-title></periodical><pages><style face="normal" font="default" size="100%">2144</style></pages><volume><style face="normal" font="default" size="100%">11</style></volume><number><style face="normal" font="default" size="100%">11</style></number><dates><year><style face="normal" font="default" size="100%">2018</style></year></dates><isbn><style face="normal" font="default" size="100%">1996-1944</style></isbn><accession-num><style face="normal" font="default" size="100%">doi:10.3390/ma11112144</style></accession-num><urls><related-urls><url><style face="normal" font="default" size="100%">https://www.mdpi.com/1996-1944/11/11/2144</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.3390/ma11112144</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>38</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">38</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Druel, Lucile</style></author><author><style face="normal" font="default" size="100%">Niemeyer, Philipp</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Budtova, Tatiana</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Rheology of cellulose-[DBNH][CO2Et] solutions and shaping into aerogel beads</style></title><secondary-title><style face="normal" font="default" size="100%">Green Chemistry</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Green Chemistry</style></full-title></periodical><pages><style face="normal" font="default" size="100%">3993-4002</style></pages><volume><style face="normal" font="default" size="100%">20</style></volume><number><style face="normal" font="default" size="100%">17</style></number><dates><year><style face="normal" font="default" size="100%">2018</style></year></dates><publisher><style face="normal" font="default" size="100%">The Royal Society of Chemistry</style></publisher><isbn><style face="normal" font="default" size="100%">1463-9262</style></isbn><abstract><style face="normal" font="default" size="100%">Cellulose aerogel beads were made with JetCutting technology and dried by supercritical CO2 extraction. Ionic liquid, 1,5-diazabicyclo[4.3.0]non-5-enium propionate ([DBNH][CO2Et]), was shown to be a suitable solvent due to its rheological and thermodynamic properties. The flow and viscoelastic properties of cellulose-[DBNH][CO2Et] solutions were studied in detail as a function of polymer concentration and solution temperature and compared to those of cellulose-1-ethyl-3-methylimidazolium acetate ([Emim][OAc]). [DBNH][CO2Et] is a thermodynamically better solvent as the cellulose intrinsic viscosity is more than two times higher than that in [Emim][OAc]. This allows to simultaneously fit (i) the processing window of JetCutter that requires rather low solution viscosity at high shear rates and (ii) cellulose concentration that is high enough above the overlap concentration to make intact aerogel beads. The beads were prepared from 2 and 3 wt% cellulose-[DBNH][CO2Et] solutions and coagulated in water, ethanol and isopropanol. Bead sizes were from 0.5 to 0.7 mm when made from 2% solutions and up to 1.8 mm when prepared from 3% solution. Cellulose aerogel beads prepared by JetCutting showed main characteristics similar to those of monolithic cellulose aerogels obtained from cellulose dissolved in other solvents: the specific surface area was 240–340 m2 g−1 at densities of 0.04–0.07 g cm−3.</style></abstract><work-type><style face="normal" font="default" size="100%">10.1039/C8GC01189C</style></work-type><urls><related-urls><url><style face="normal" font="default" size="100%">http://dx.doi.org/10.1039/C8GC01189C</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.1039/C8GC01189C</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>41</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">41</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Tannert, René</style></author><author><style face="normal" font="default" size="100%">Schwan, Marina</style></author><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author><author><style face="normal" font="default" size="100%">Eggeler, Mario</style></author><author><style face="normal" font="default" size="100%">da Silva, Julio Cesar</style></author><author><style face="normal" font="default" size="100%">Bartsch, Marion</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Itskov, Mikhail</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The three-dimensional structure of flexible resorcinol-formaldehyde aerogels investigated by means of holotomography</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Sol-Gel Science and Technology</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Journal of Sol-Gel Science and Technology</style></full-title></periodical><pages><style face="normal" font="default" size="100%">391-399</style></pages><volume><style face="normal" font="default" size="100%">84</style></volume><number><style face="normal" font="default" size="100%">3</style></number><dates><year><style face="normal" font="default" size="100%">2017</style></year><pub-dates><date><style face="normal" font="default" size="100%">2017/12/01</style></date></pub-dates></dates><isbn><style face="normal" font="default" size="100%">1573-4846</style></isbn><abstract><style face="normal" font="default" size="100%">Organic aerogels based on resorcinol-formaldehyde gels display remarkable properties due to their pronounced nanoporosity. Therefore, studies towards the understanding of their structure-property-relationship are of high value for the design of improved materials. X-ray tomography is a technique that has been used for the structural elucidation of porous materials, but so far no highly resolved three-dimensional structures of resorcinol-formaldehyde gels have been obtained under the classical absorption-based experimental X-ray setup. This paper reports on the successful analysis of a superflexible resorcinol-formaldehyde aerogel using zoom holotomography that yielded images with an unprecedented resolution in the sub-micrometer range. The preparation of suitable powder from monolithic superflexible resorcinol-formaldehyde, the experimental conditions for tomography, and data-processing to obtain a 3D-image of the dried gel sample are described. Macropores above ca. 75 nm could be identified and visualized. They were shown to adopt almost spherical shape and to display a low connectivity. A quantitative analysis of the pore space revealed that most of the identified pores are small macropores (diameter &lt; 0.5 µm), yet most pore volume is located in larger macropores of 1–4 µm diameter.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1007/s10971-017-4363-6</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.1007/s10971-017-4363-6</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>42</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">42</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Pico, Davide</style></author><author><style face="normal" font="default" size="100%">Meyer, Eva</style></author><author><style face="normal" font="default" size="100%">Lüking, Alexander</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Gries, Thomas</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Silica-aero. production of lightweight silica aerogel fibers for excellent heat insulating application</style></title><secondary-title><style face="normal" font="default" size="100%">Chemical engineering transactions</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Chemical engineering transactions</style></full-title></periodical><pages><style face="normal" font="default" size="100%">91-96</style></pages><volume><style face="normal" font="default" size="100%">60</style></volume><dates><year><style face="normal" font="default" size="100%">2017</style></year></dates><urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.3303/CET1760016</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>43</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">43</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Berkefeld, André</style></author><author><style face="normal" font="default" size="100%">Heyer, Markus</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Silica aerogel paper honeycomb composites for thermal insulations</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Sol-Gel Science and Technology</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Journal of Sol-Gel Science and Technology</style></full-title></periodical><pages><style face="normal" font="default" size="100%">486-495</style></pages><volume><style face="normal" font="default" size="100%">84</style></volume><number><style face="normal" font="default" size="100%">3</style></number><dates><year><style face="normal" font="default" size="100%">2017</style></year><pub-dates><date><style face="normal" font="default" size="100%">2017/12/01</style></date></pub-dates></dates><isbn><style face="normal" font="default" size="100%">1573-4846</style></isbn><abstract><style face="normal" font="default" size="100%">Applicability of super-insulating silica aerogel materials for thermal insulation is still restricted by limited mechanical strength. We report on a systematic improvement of silica aerogels in respect to shrinkage, density and thermal conductivity by varying sol-gel parameters as the molar ratios of TEOS:EtOH:H2O or the hydrolysis time. The received silica aerogels can be combined with paper-based honeycomb structures to improve the mechanical strength. We successfully manufactured such silica aerogel paper honeycomb composites. The challenges in the preparation are the must to prevent shrinkage of the silica aerogels during synthesis, to avoid cracks by supercritical drying, and to get a perfect bonding at the paper–silica interface. The composite materials are characterized with respect to their compression modulus, thermal conductivity, and flammability.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1007/s10971-017-4497-6</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.1007/s10971-017-4497-6</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>44</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">44</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Schwan, Marina</style></author><author><style face="normal" font="default" size="100%">Tannert, René</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">New soft and spongy resorcinol–formaldehyde aerogels</style></title><secondary-title><style face="normal" font="default" size="100%">The Journal of Supercritical Fluids</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">The Journal of Supercritical Fluids</style></full-title></periodical><pages><style face="normal" font="default" size="100%">201-208</style></pages><volume><style face="normal" font="default" size="100%">107</style></volume><keywords><keyword><style face="normal" font="default" size="100%">Aerogels</style></keyword><keyword><style face="normal" font="default" size="100%">Sol–gel process</style></keyword><keyword><style face="normal" font="default" size="100%">Flexible aerogels</style></keyword><keyword><style face="normal" font="default" size="100%">Supercritical drying</style></keyword><keyword><style face="normal" font="default" size="100%">Compressive modulus</style></keyword><keyword><style face="normal" font="default" size="100%">Shrinkage</style></keyword></keywords><dates><year><style face="normal" font="default" size="100%">2016</style></year><pub-dates><date><style face="normal" font="default" size="100%">2016/01/01/</style></date></pub-dates></dates><isbn><style face="normal" font="default" size="100%">0896-8446</style></isbn><abstract><style face="normal" font="default" size="100%">Novel super-flexible resorcinol–formaldehyde (RF) aerogels were synthesized via a sol–gel process followed by supercritical drying. These aerogels are soft and are reversibly deformable up to 25%. Low density of 0.06gcm−3 and low Young&apos;s modulus of about 116kPa distinguish these sponge-like aerogels from conventional RF-aerogels made especially by ambient drying. The synthesis occurs from a very diluted sol-solution and demands high accuracy during preparation. Formation of small particles and relatively big pores allow bending of pore walls without breaking and establish microstructural conditions of flexibility. The experiments show the microstructure formation leading to superflexible RF-aerogels is a very sensitive process and depends on the homogeneity of the sol and its pH value. Shrinkage during for instance ambient dyring induces a collapse of the pore structure and reduces flexibility. Additionally, a definition and calculation of the term “flexibility” is presented and discussed in this study.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://www.sciencedirect.com/science/article/pii/S0896844615301248</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1016/j.supflu.2015.09.010</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>45</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">45</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Schwan, Marina</style></author><author><style face="normal" font="default" size="100%">Rößler, Matthias</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">From Fragile to Resilient Insulation: Synthesis and Characterization of Aramid-Honeycomb Reinforced Silica Aerogel Composite Materials</style></title><secondary-title><style face="normal" font="default" size="100%">Gels</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Gels</style></full-title></periodical><pages><style face="normal" font="default" size="100%">1</style></pages><volume><style face="normal" font="default" size="100%">2</style></volume><number><style face="normal" font="default" size="100%">1</style></number><dates><year><style face="normal" font="default" size="100%">2016</style></year></dates><isbn><style face="normal" font="default" size="100%">2310-2861</style></isbn><accession-num><style face="normal" font="default" size="100%">doi:10.3390/gels2010001</style></accession-num><urls><related-urls><url><style face="normal" font="default" size="100%">https://www.mdpi.com/2310-2861/2/1/1</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.3390/gels2010001</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>46</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">46</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Schwan, Marina</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Flexible Carbon Aerogels</style></title><secondary-title><style face="normal" font="default" size="100%">C</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">C</style></full-title></periodical><pages><style face="normal" font="default" size="100%">22</style></pages><volume><style face="normal" font="default" size="100%">2</style></volume><number><style face="normal" font="default" size="100%">3</style></number><dates><year><style face="normal" font="default" size="100%">2016</style></year></dates><isbn><style face="normal" font="default" size="100%">2311-5629</style></isbn><accession-num><style face="normal" font="default" size="100%">doi:10.3390/c2030022</style></accession-num><urls><related-urls><url><style face="normal" font="default" size="100%">https://www.mdpi.com/2311-5629/2/3/22</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.3390/c2030022</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>47</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">47</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Schnellenbach-Held, Martina</style></author><author><style face="normal" font="default" size="100%">Welsch, Torsten</style></author><author><style face="normal" font="default" size="100%">Fickler, Silvia</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Entwicklung von Hochleistungsaerogelbeton</style></title><secondary-title><style face="normal" font="default" size="100%">Beton- und Stahlbetonbau</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Beton- und Stahlbetonbau</style></full-title></periodical><pages><style face="normal" font="default" size="100%">555-563</style></pages><volume><style face="normal" font="default" size="100%">111</style></volume><number><style face="normal" font="default" size="100%">9</style></number><dates><year><style face="normal" font="default" size="100%">2016</style></year></dates><isbn><style face="normal" font="default" size="100%">0005-9900</style></isbn><abstract><style face="normal" font="default" size="100%">Abstract Aufgrund der Anforderungen an den Wärmeschutz ist die Ausführung einschaliger Außenwände aus Normalbeton bereits seit einigen Jahrzehnten nicht mehr praktikabel. Um den bauphysikalischen Anforderungen gerecht zu werden, sind in der Regel zusätzliche Maßnahmen wie die Anbringung von Wärmedämmverbundsystemen oder die Ausführung als zweischalige Wandkonstruktion mit Kerndämmung erforderlich, aus denen gestalterische, konstruktive oder wirtschaftliche Nachteile resultieren können. Bisherige Versuche, einschalige Außenwände aus Leichtbetonen herzustellen, erfordern wegen der verhältnismäßig geringen Druckfestigkeiten oder der im Vergleich zu anderen Außenwandkonstruktionen noch immer höheren Wärmeleitfähigkeiten stets sehr große Wanddicken. Das Institut für Massivbau (IfM) der Universität Duisburg-Essen hat in Zusammenarbeit mit dem Institut für Werkstoff-Forschung des Deutschen Zentrums für Luft und Raumfahrt (DLR) durch Einbettung von Quarzglas-Aerogelgranulat in UHPC-Matrizen einen Hochleistungsaerogelbeton entwickelt, der ein sehr günstiges Verhältnis zwischen Druckfestigkeit und Wärmeleitfähigkeit aufweist [1]. Nachfolgend werden die mechanischen und bauphysikalischen Eigenschaften des neuen Werkstoffs vorgestellt.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://onlinelibrary.wiley.com/doi/abs/10.1002/best.201600017</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1002/best.201600017</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>48</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">48</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">M. Schestakow</style></author><author><style face="normal" font="default" size="100%">F. Muench</style></author><author><style face="normal" font="default" size="100%">C. Reimuth</style></author><author><style face="normal" font="default" size="100%">L. Ratke</style></author><author><style face="normal" font="default" size="100%">W. Ensinger</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Electroless synthesis of cellulose-metal aerogel composites</style></title><secondary-title><style face="normal" font="default" size="100%">Applied Physics Letters</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Applied Physics Letters</style></full-title></periodical><pages><style face="normal" font="default" size="100%">213108</style></pages><volume><style face="normal" font="default" size="100%">108</style></volume><number><style face="normal" font="default" size="100%">21</style></number><keywords><keyword><style face="normal" font="default" size="100%">aerogels,electroless deposited coatings,electroless deposition,filled polymers,nanocomposites,nanofabrication,nanoparticles,nanoporous materials,particle reinforced composites,silver</style></keyword></keywords><dates><year><style face="normal" font="default" size="100%">2016</style></year></dates><urls><related-urls><url><style face="normal" font="default" size="100%">https://aip.scitation.org/doi/abs/10.1063/1.4952948</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.1063/1.4952948</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>49</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">49</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Schestakow, Maria</style></author><author><style face="normal" font="default" size="100%">Karadagli, Ilknur</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Cellulose aerogels prepared from an aqueous zinc chloride salt hydrate melt</style></title><secondary-title><style face="normal" font="default" size="100%">Carbohydrate Polymers</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Carbohydrate Polymers</style></full-title></periodical><pages><style face="normal" font="default" size="100%">642-649</style></pages><volume><style face="normal" font="default" size="100%">137</style></volume><keywords><keyword><style face="normal" font="default" size="100%">Cellulose aerogel</style></keyword><keyword><style face="normal" font="default" size="100%">Zinc chloride</style></keyword><keyword><style face="normal" font="default" size="100%">Regenerative fluid</style></keyword><keyword><style face="normal" font="default" size="100%">Structure</style></keyword><keyword><style face="normal" font="default" size="100%">Stiffness</style></keyword></keywords><dates><year><style face="normal" font="default" size="100%">2016</style></year><pub-dates><date><style face="normal" font="default" size="100%">2016/02/10/</style></date></pub-dates></dates><isbn><style face="normal" font="default" size="100%">0144-8617</style></isbn><abstract><style face="normal" font="default" size="100%">Monolithic cellulose aerogels are prepared using a salt hydrate melt based on cheap zinc chloride tetrahydrate (ZnCl2·4H2O) that can be washed out of the wet gel-body by using common solvents such as water, ethanol, isopropanol or acetone. Cellulose aerogels with concentrations of 1–5wt.% cellulose were produced. These aerogels are characterized with respect to shrinkage, density and surface area as well as mechanical properties and micro-structure via SEM. Cellulose aerogels regenerated in acetone show a specific surface area of around 340m2g−1 being 60% higher than those regenerated in water. The onset of irreversible plastic deformation under compressive load is around 0.8MPa for acetone-regenerated aerogels and thus a factor of two larger compared to ethanol regenerated ones. The Young&apos;s modulus depends almost linearly on the cellulose concentration which is observed for all regenerative fluids with the exception of water. The results achieved are presented in light of the polarity and ability of solvation of ZnCl2·4H2O in the regenerative fluids used.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://www.sciencedirect.com/science/article/pii/S0144861715010772</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1016/j.carbpol.2015.10.097</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>50</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">50</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author><author><style face="normal" font="default" size="100%">Schestakow, Maria</style></author><author><style face="normal" font="default" size="100%">Karadagli, Ilknur</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author><author><style face="normal" font="default" size="100%">Itskov, Mikhail</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Micro-mechanical modelling of cellulose aerogels from molten salt hydrates</style></title><secondary-title><style face="normal" font="default" size="100%">Soft Matter</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Soft Matter</style></full-title></periodical><pages><style face="normal" font="default" size="100%">7079-7088</style></pages><volume><style face="normal" font="default" size="100%">12</style></volume><number><style face="normal" font="default" size="100%">34</style></number><dates><year><style face="normal" font="default" size="100%">2016</style></year></dates><publisher><style face="normal" font="default" size="100%">The Royal Society of Chemistry</style></publisher><isbn><style face="normal" font="default" size="100%">1744-683X</style></isbn><abstract><style face="normal" font="default" size="100%">In this paper, a generalised micro-mechanical model capable of capturing the mechanical behaviour of polysaccharidic aerogels, in particular cellulose aerogels, is proposed. To this end, first the mechanical structure and properties of these highly nanoporous cellulose aerogels prepared from aqueous salt hydrate melts (calcium thiocyanate, Ca(SCN)2·6H2O and zinc chloride, ZnCl2·4H2O) are studied. The cellulose content within these aerogels is found to have a direct relation to the microstructural quantities such as the fibril length and diameter. This, along with porosity, appears to influence the resulting mechanical properties. Furthermore, experimental characterisation of cellulose aerogels was done using scanning electron microscopy (SEM), pore-size data analysis, and compression tests. Cellulose aerogels are of a characteristic cellular microstructures and accordingly a network formed by square shaped cells is considered in the micro-mechanical model proposed in this paper. This model is based on the non-linear bending and collapse of such cells of varying pore sizes. The extended Euler–Bernoulli beam theory for large deflections is used to describe the bending in the cell walls. The proposed model is physically motivated and demonstrates a good agreement with our experimental data of both ZnCl2 and Ca(SCN)2 based cellulose aerogels with different cellulose contents.</style></abstract><work-type><style face="normal" font="default" size="100%">10.1039/C6SM01460G</style></work-type><urls><related-urls><url><style face="normal" font="default" size="100%">http://dx.doi.org/10.1039/C6SM01460G</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.1039/C6SM01460G</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>51</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">51</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Park, Dong-Won</style></author><author><style face="normal" font="default" size="100%">Cañas, Natalia A.</style></author><author><style face="normal" font="default" size="100%">Schwan, Marina</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author><author><style face="normal" font="default" size="100%">Friedrich, K. Andreas</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">A dual mesopore C-aerogel electrode for a high energy density supercapacitor</style></title><secondary-title><style face="normal" font="default" size="100%">Current Applied Physics</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Current Applied Physics</style></full-title></periodical><pages><style face="normal" font="default" size="100%">658-664</style></pages><volume><style face="normal" font="default" size="100%">16</style></volume><number><style face="normal" font="default" size="100%">6</style></number><keywords><keyword><style face="normal" font="default" size="100%">Carbon aerogel</style></keyword><keyword><style face="normal" font="default" size="100%">Dual mesopore</style></keyword><keyword><style face="normal" font="default" size="100%">Supercapacitor</style></keyword><keyword><style face="normal" font="default" size="100%">Energy storage</style></keyword></keywords><dates><year><style face="normal" font="default" size="100%">2016</style></year><pub-dates><date><style face="normal" font="default" size="100%">2016/06/01/</style></date></pub-dates></dates><isbn><style face="normal" font="default" size="100%">1567-1739</style></isbn><abstract><style face="normal" font="default" size="100%">Energy and power-storage capability of supercapacitors are associated with the physical and chemical characteristics of carbon-based electrodes. Herein, we report the structural characteristics and electrochemical performance of carbon aerogels (C-aerogels) prepared via a simple sol-gel method without any activation process. The synthesized C-aerogel possesses a 3-D interconnected network structure, and was tested as the active electrode material in a symmetrical supercapacitor with an organic electrolyte. Cyclic voltammetry and galvanostatic charge/discharge measurements demonstrate the good electrochemical performance of the supercapacitor. A specific capacitance of 21.8 F·g−1 at 2 A·g−1 and cycle durability of 87% over 10,000 cycles was observed due to the presence of dual mesopores. These dual mesopores result in an enhanced access to reaction sites and facilitate electrolyte ion transport. Furthermore, they can afford a high energy density of 22.1 Wh kg−1 at a power density of 2.4 kW·kg−1.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://www.sciencedirect.com/science/article/pii/S1567173916300669</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1016/j.cap.2016.03.021</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>52</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">52</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Meyer, Eva</style></author><author><style face="normal" font="default" size="100%">Barowski, Adam</style></author><author><style face="normal" font="default" size="100%">Schestakow, Maria</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Aerogele als Sandkernadditive zur Verbesserung der Gussteilqualität</style></title><secondary-title><style face="normal" font="default" size="100%">Giesserei</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Giesserei</style></full-title></periodical><dates><year><style face="normal" font="default" size="100%">2016</style></year><pub-dates><date><style face="normal" font="default" size="100%">10/01</style></date></pub-dates></dates><urls><related-urls><url><style face="normal" font="default" size="100%">https://www.giesserei.eu/artikel/aerogele-als-sandkernadditive-zur-verbesserung-der-gussteilqualitaet</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>53</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">53</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Laskowski, Jessica</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Aerogel–aerogel composites for normal temperature range thermal insulations</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Non-Crystalline Solids</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Journal of Non-Crystalline Solids</style></full-title></periodical><pages><style face="normal" font="default" size="100%">42-48</style></pages><volume><style face="normal" font="default" size="100%">441</style></volume><keywords><keyword><style face="normal" font="default" size="100%">Aerogel–aerogel composite</style></keyword><keyword><style face="normal" font="default" size="100%">Resorcinol-formaldehyde aerogel</style></keyword><keyword><style face="normal" font="default" size="100%">Silica aerogel</style></keyword><keyword><style face="normal" font="default" size="100%">Thermal insulation</style></keyword></keywords><dates><year><style face="normal" font="default" size="100%">2016</style></year><pub-dates><date><style face="normal" font="default" size="100%">2016/06/01/</style></date></pub-dates></dates><isbn><style face="normal" font="default" size="100%">0022-3093</style></isbn><abstract><style face="normal" font="default" size="100%">Aerogel–aerogel composites are prepared by embedding highly insulating granular silica aerogel (1–2mm, 5–58vol.%) into ambient pressure dried resorcinol-formaldehyde (RF) aerogel. The organic RF aerogel matrix is synthesized via a sol–gel reaction of resorcinol (1,3-dihydroxybenzene) and formaldehyde in deionized water with Na2CO3 as the catalyst. Plates around 90×195mm² with a thickness of 19–25 mm are obtained and can be processed for application by sawing and grinding. A theoretical model for the volume-based surface area was used to show that the matrix aerogel around the silica aerogel grains is affected by their presence. Composites have a density 0.19≤ρ≤0.27g/cm³ and a thermal conductivity at room temperature between 0.026 and 0.053W/mK. Composites can be used as thermal insulation material in a normal temperature range&lt;200°C due to the decomposition of the organic phase above 200°C.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://www.sciencedirect.com/science/article/pii/S0022309316300734</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1016/j.jnoncrysol.2016.03.020</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>54</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">54</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Ganesan, Kathirvel</style></author><author><style face="normal" font="default" size="100%">Dennstedt, Anne</style></author><author><style face="normal" font="default" size="100%">Barowski, Adam</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Design of aerogels, cryogels and xerogels of cellulose with hierarchical porous structures</style></title><secondary-title><style face="normal" font="default" size="100%">Materials &amp; Design</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Materials &amp; Design</style></full-title></periodical><pages><style face="normal" font="default" size="100%">345-355</style></pages><volume><style face="normal" font="default" size="100%">92</style></volume><keywords><keyword><style face="normal" font="default" size="100%">Cellulose</style></keyword><keyword><style face="normal" font="default" size="100%">Aerogels</style></keyword><keyword><style face="normal" font="default" size="100%">Cryogels</style></keyword><keyword><style face="normal" font="default" size="100%">Xerogels</style></keyword><keyword><style face="normal" font="default" size="100%">Hierarchical structure</style></keyword><keyword><style face="normal" font="default" size="100%">Porous network</style></keyword></keywords><dates><year><style face="normal" font="default" size="100%">2016</style></year><pub-dates><date><style face="normal" font="default" size="100%">2016/02/15/</style></date></pub-dates></dates><isbn><style face="normal" font="default" size="100%">0264-1275</style></isbn><abstract><style face="normal" font="default" size="100%">Cellulose-based biocomposites from nature exhibit remarkable mechanical properties which inspire to prepare synthetic biocomposites. The detailed studies of the porous cellulose materials having hierarchical structures are essential to understand how the cellulose nanofiber network and interconnected macro- and mesoporous structures exclusively influence the mechanical properties. We have designed the hierarchical open porous structures of cellulose scaffolds by a novel method in which an intricate trap of oil droplets in the cellulose-dissolved molten salt hydrate acts as a structural template assisting the formation of interconnected macroporous structures. After washing, the wet gels of cellulose were employed in three different drying techniques, namely supercritical drying, freeze drying and ambient drying. The diversity in physical and mechanical properties of the cellulose scaffolds were characterized by X-ray μ-computed tomography, density analyser, scanning electron microscopy, nitrogen adsorption–desorption analysis, X-ray powder diffraction, FTIR spectroscopy and mechanical testing. In the resulting products, the variations in physical properties were the size of the macropores produced by the emulsion template, the change in surface features of the cell walls and the presence of nanopores in the cell walls. The mechanical properties of hierarchically porous cellulose materials were diverged from lightweight soft materials to hard, stiff and dense material.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://www.sciencedirect.com/science/article/pii/S026412751530900X</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1016/j.matdes.2015.12.041</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>55</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">55</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Wickenheisser, Martin</style></author><author><style face="normal" font="default" size="100%">Herbst, Annika</style></author><author><style face="normal" font="default" size="100%">Tannert, René</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Janiak, Christoph</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Hierarchical MOF-xerogel monolith composites from embedding MIL-100(Fe,Cr) and MIL-101(Cr) in resorcinol-formaldehyde xerogels for water adsorption applications</style></title><secondary-title><style face="normal" font="default" size="100%">Microporous and Mesoporous Materials</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Microporous and Mesoporous Materials</style></full-title></periodical><pages><style face="normal" font="default" size="100%">143-153</style></pages><volume><style face="normal" font="default" size="100%">215</style></volume><keywords><keyword><style face="normal" font="default" size="100%">Metal-organic framework</style></keyword><keyword><style face="normal" font="default" size="100%">Resorcinol-formaldehyde xerogels</style></keyword><keyword><style face="normal" font="default" size="100%">Monoliths</style></keyword><keyword><style face="normal" font="default" size="100%">Water adsorption</style></keyword><keyword><style face="normal" font="default" size="100%">Heat transformation</style></keyword></keywords><dates><year><style face="normal" font="default" size="100%">2015</style></year><pub-dates><date><style face="normal" font="default" size="100%">2015/10/01/</style></date></pub-dates></dates><isbn><style face="normal" font="default" size="100%">1387-1811</style></isbn><abstract><style face="normal" font="default" size="100%">Shaping of otherwise powdery metal-organic frameworks is recognized as a more-and-more important issue to advance them to the application stage. Monolithic MOF composites were synthesized using micro-to-mesoporous MIL-100(Fe,Cr) and MIL-101(Cr) as thermally and chemically stable MOFs together with a mesoporous resorcinol-formaldehyde based xerogel as binding agent. The monolithic bodies could be loaded with up to 77 wt% of powdery MIL material under retention of the MIL surface area and porosities (from N2 adsorption) by pre-polymerization of the xerogel solution. The obtained monoliths are mechanically stable and adsorb close to the expected water vapor amount according to the MIL weight percentage. There is no loss of BET surface area, porosity and water uptake capacity especially for the MIL-101(Cr) composites. Water vapor adsorption isotherms show that the 77 wt% MIL-101(Cr) loaded composite even features a slightly increased water vapor uptake compared to pure MIL-101(Cr) up to a relative vapor pressure of P·P0−1=0.5. These hydrophilic monolithic composites could be applied for heat transformation application such as thermally driven adsorption chillers or adsorption heat pumps.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://www.sciencedirect.com/science/article/pii/S1387181115002863</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1016/j.micromeso.2015.05.017</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>56</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">56</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Tannert, René</style></author><author><style face="normal" font="default" size="100%">Schwan, Marina</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Reduction of shrinkage and brittleness for resorcinol-formaldehyde aerogels by means of a pH-controlled sol–gel process</style></title><secondary-title><style face="normal" font="default" size="100%">The Journal of Supercritical Fluids</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">The Journal of Supercritical Fluids</style></full-title></periodical><pages><style face="normal" font="default" size="100%">57-61</style></pages><volume><style face="normal" font="default" size="100%">106</style></volume><keywords><keyword><style face="normal" font="default" size="100%">Aerogels</style></keyword><keyword><style face="normal" font="default" size="100%">Sol–gel process</style></keyword><keyword><style face="normal" font="default" size="100%">Shrinkage</style></keyword><keyword><style face="normal" font="default" size="100%">Density</style></keyword><keyword><style face="normal" font="default" size="100%">Compressive modulus</style></keyword><keyword><style face="normal" font="default" size="100%">Thermal conductivity</style></keyword></keywords><dates><year><style face="normal" font="default" size="100%">2015</style></year><pub-dates><date><style face="normal" font="default" size="100%">2015/11/01/</style></date></pub-dates></dates><isbn><style face="normal" font="default" size="100%">0896-8446</style></isbn><abstract><style face="normal" font="default" size="100%">Aerogels have attracted remarkable attention as porous low-density superinsulating material. However, they are typically brittle and tend to shrink during preparation or work-up preventing their use as a composite material. In that context, we have developed a sol–gel-process towards resorcinol-formaldehyde aerogels that includes a precise pH-adjustment at an early stage of the polymerization. As a result, less brittle analogues of Pekala aerogels were obtained that resemble Pekala gels in many aspects (skeletal density, porosity, thermal properties). However, significant differences were found in terms of inner surface area and compressive modulus, which are smaller for lower pH-values. Since pH-adjustment leads to minimal gel shrinkage, this sol–gel-process may be useful for the development of aerogel composites.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://www.sciencedirect.com/science/article/pii/S0896844615300462</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1016/j.supflu.2015.06.021</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>57</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">57</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Schwan, Marina</style></author><author><style face="normal" font="default" size="100%">Naikade, Manoj</style></author><author><style face="normal" font="default" size="100%">Raabe, Dierk</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">From hard to rubber-like: mechanical properties of resorcinol–formaldehyde aerogels</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Materials Science</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Journal of Materials Science</style></full-title></periodical><pages><style face="normal" font="default" size="100%">5482-5493</style></pages><volume><style face="normal" font="default" size="100%">50</style></volume><number><style face="normal" font="default" size="100%">16</style></number><dates><year><style face="normal" font="default" size="100%">2015</style></year><pub-dates><date><style face="normal" font="default" size="100%">2015/08/01</style></date></pub-dates></dates><isbn><style face="normal" font="default" size="100%">1573-4803</style></isbn><abstract><style face="normal" font="default" size="100%">Four types of resorcinol–formaldehyde (RF) aerogels, stiff, brittle, low-flexible, and super-flexible are studied in this work. Despite several studies on mechanical properties on RF aerogels their response when exposed to compressive loading and their fracture behavior are not well investigated. Here, we cover aerogels with a very broad density range of 0.08–0.3 g cm−3 and compressive moduli from 0.12 to 28 MPa. We relate the microstructure of the synthesized aerogels and their behavior under uniaxial compression. Additionally, this work is the first, to our knowledge, to implement the usage of digital image correlation for characterizing the deformation of RF aerogels. The comparison of surface strain distribution of four types of aerogels provides an insight to their reaction on compressive loading.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1007/s10853-015-9094-x</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.1007/s10853-015-9094-x</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>58</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">58</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Meyer, Eva</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Development of aerogel additives for the foundry industry</style></title><secondary-title><style face="normal" font="default" size="100%">The Journal of Supercritical Fluids</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">The Journal of Supercritical Fluids</style></full-title></periodical><pages><style face="normal" font="default" size="100%">62-68</style></pages><volume><style face="normal" font="default" size="100%">106</style></volume><keywords><keyword><style face="normal" font="default" size="100%">Silica aerogel</style></keyword><keyword><style face="normal" font="default" size="100%">Pyrolysis</style></keyword><keyword><style face="normal" font="default" size="100%">Ambient drying</style></keyword><keyword><style face="normal" font="default" size="100%">High inner surface area</style></keyword><keyword><style face="normal" font="default" size="100%">Casting additive</style></keyword></keywords><dates><year><style face="normal" font="default" size="100%">2015</style></year><pub-dates><date><style face="normal" font="default" size="100%">2015/11/01/</style></date></pub-dates></dates><isbn><style face="normal" font="default" size="100%">0896-8446</style></isbn><abstract><style face="normal" font="default" size="100%">The quality of cast products can be improved by using high-temperature stable aerogels or xerogels within sand cores that are able to adsorb gases deriving from thermal decomposition of resins used as sand grain binders. We developed pure TEOS (tetraethoxysilane) and pure MTMS (methyltrimethoxysilane) aerogels as well as mixed MTMS/TEOS aerogels to yield high-temperature stable aerogels by pyrolysis that are considered capable to improve the casting process of copper-based alloys. Aerogel samples were synthesized from pure TEOS or MTMS precursors or from different MTMS/TEOS ratios by using NH4Faq as catalyst. Wet gels were dried under ambient pressure and were pyrolyzed to yield SiOC aerogels. After pyrolysis the samples were characterized by density, nitrogen adsorption (BET, BJH), scanning electron microscopy and thermogravimetric analysis. Examinations on sand core behavior and cast surface quality were performed by adding the most promising material in granular form as an additive (inner surface area: 890m2/g) in different volume percentage to the sand grain mixture. For this application we synthesised liters of aerogels.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://www.sciencedirect.com/science/article/pii/S0896844615300437</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1016/j.supflu.2015.06.018</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>59</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">59</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Malfait, Wim J.</style></author><author><style face="normal" font="default" size="100%">Zhao, Shanyu</style></author><author><style face="normal" font="default" size="100%">Verel, Rene</style></author><author><style face="normal" font="default" size="100%">Iswar, Subramaniam</style></author><author><style face="normal" font="default" size="100%">Rentsch, Daniel</style></author><author><style face="normal" font="default" size="100%">Fener, Resul</style></author><author><style face="normal" font="default" size="100%">Zhang, Yucheng</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Koebel, Matthias M.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Surface Chemistry of Hydrophobic Silica Aerogels</style></title><secondary-title><style face="normal" font="default" size="100%">Chemistry of Materials</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Chemistry of Materials</style></full-title></periodical><pages><style face="normal" font="default" size="100%">6737-6745</style></pages><volume><style face="normal" font="default" size="100%">27</style></volume><number><style face="normal" font="default" size="100%">19</style></number><dates><year><style face="normal" font="default" size="100%">2015</style></year><pub-dates><date><style face="normal" font="default" size="100%">2015/10/13</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">American Chemical Society</style></publisher><isbn><style face="normal" font="default" size="100%">0897-4756</style></isbn><notes><style face="normal" font="default" size="100%">doi: 10.1021/acs.chemmater.5b02801</style></notes><urls><related-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1021/acs.chemmater.5b02801</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.1021/acs.chemmater.5b02801</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>60</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">60</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Laskowski, Jessica</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The effect of embedding highly insulating granular aerogel in cellulosic aerogel</style></title><secondary-title><style face="normal" font="default" size="100%">The Journal of Supercritical Fluids</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">The Journal of Supercritical Fluids</style></full-title></periodical><pages><style face="normal" font="default" size="100%">93-99</style></pages><volume><style face="normal" font="default" size="100%">106</style></volume><keywords><keyword><style face="normal" font="default" size="100%">Aerogel–aerogel composite</style></keyword><keyword><style face="normal" font="default" size="100%">Silica aerogel</style></keyword><keyword><style face="normal" font="default" size="100%">Cellulose aerogel</style></keyword><keyword><style face="normal" font="default" size="100%">Particulate composite</style></keyword><keyword><style face="normal" font="default" size="100%">Insulation</style></keyword></keywords><dates><year><style face="normal" font="default" size="100%">2015</style></year><pub-dates><date><style face="normal" font="default" size="100%">2015/11/01/</style></date></pub-dates></dates><isbn><style face="normal" font="default" size="100%">0896-8446</style></isbn><abstract><style face="normal" font="default" size="100%">We investigate aerogel–aerogel composites to develop new materials for thermal insulation applications with reduced fragility and without release of dust. Two different kinds of highly insulating silica aerogels (SiO2) were embedded into a cellulosic aerogel: a high-density (0.25g/cm3) tetramethylorthosilicate (TMOS) based and a low-density (0.15g/cm3) waterglass based hydrophilic granular silica aerogel which are added to the salt hydrate melt of 59wt.% calcium thiocyanate and 2 or 3wt.% of cellulose during the synthesis of a cellulosic aerogel. The silica aerogel species show a different behavior regarding the interaction with the cellulose network in the composite examined by scanning electron microscopy. With the synthesis method we were able to produce non-fragile aerogel–aerogel composites and a strong stiffening effect regarding Young’s modulus was achieved compared to pure aerogels. Density obtained is 0.04–0.15g/cm3 and thermal conductivity reached is between 0.04–0.05W/mK.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://www.sciencedirect.com/science/article/pii/S0896844615300097</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1016/j.supflu.2015.05.011</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>61</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">61</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Karadagli, Ilknur</style></author><author><style face="normal" font="default" size="100%">Schulz, Björn</style></author><author><style face="normal" font="default" size="100%">Schestakow, Maria</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Gries, Thomas</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Production of porous cellulose aerogel fibers by an extrusion process</style></title><secondary-title><style face="normal" font="default" size="100%">The Journal of Supercritical Fluids</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">The Journal of Supercritical Fluids</style></full-title></periodical><pages><style face="normal" font="default" size="100%">105-114</style></pages><volume><style face="normal" font="default" size="100%">106</style></volume><keywords><keyword><style face="normal" font="default" size="100%">Twin screw extrusion</style></keyword><keyword><style face="normal" font="default" size="100%">Salt hydrate melt</style></keyword><keyword><style face="normal" font="default" size="100%">Cellulose aerogel</style></keyword><keyword><style face="normal" font="default" size="100%">Aerogel fiber</style></keyword><keyword><style face="normal" font="default" size="100%">Supercritical drying</style></keyword></keywords><dates><year><style face="normal" font="default" size="100%">2015</style></year><pub-dates><date><style face="normal" font="default" size="100%">2015/11/01/</style></date></pub-dates></dates><isbn><style face="normal" font="default" size="100%">0896-8446</style></isbn><abstract><style face="normal" font="default" size="100%">The preparation, production and properties of light weight, porous cellulose aerogels in the form of thin extruded fibers is compared to monolithic pieces. The cellulose aerogels were synthesized from microcrystalline cellulose in a hydrated calciumthiocyanate salt melt, which upon cooling forms a gel at around 80°C. Twin screw extrusion experiments were performed systematically yielding thin and wet cellulose filaments. Washing and coagulation of the wet gels in ethanol was followed by supercritical drying with CO2 yielding cellulose aerogel filaments. These were characterized with regard to envelope density, nitrogen adsorption-desorption (BET) analysis, thermal conductivity measurements, tensile and compression tests and scanning electron microscopy (SEM). The microstructure can be described as an open porous network of nano-fibrils with pore sizes ranging from 10 to 100nm and fibril diameters of around 10 to 25nm. The densities of supercritically dried (SCD) cellulose aerogels were in the range of 0.009–0.137g/cm3 and the BET specific surface areas (SSABET) were between 120 and 230m2/g. The cellulose aerogel possessed thermal conductivities from 0.04 to 0.075W/m.K and compressive moduli up to 16.2MPa. The tensile strength of aerogel filaments increases with the increasing cellulose amount in the spin dope. Extruded cellulose aerogel filaments show a dependency of their specific surface area on the extrusion temperature: the higher the spinning temperature the higher the surface area.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://www.sciencedirect.com/science/article/pii/S089684461530036X</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1016/j.supflu.2015.06.011</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>62</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">62</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Kamal Mohamed, Seeni Meera</style></author><author><style face="normal" font="default" size="100%">Ganesan, Kathirvel</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The effect of zinc oxide (ZnO) addition on the physical and morphological properties of cellulose aerogel beads</style></title><secondary-title><style face="normal" font="default" size="100%">RSC Advances</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">RSC Advances</style></full-title></periodical><pages><style face="normal" font="default" size="100%">90193-90201</style></pages><volume><style face="normal" font="default" size="100%">5</style></volume><number><style face="normal" font="default" size="100%">109</style></number><dates><year><style face="normal" font="default" size="100%">2015</style></year></dates><publisher><style face="normal" font="default" size="100%">The Royal Society of Chemistry</style></publisher><abstract><style face="normal" font="default" size="100%">Microsized open porous beads of cellulose were made using the dissolution medium containing mixtures of 7 wt% NaOH and 12 wt% urea and additionally various concentrations of ZnO to study its effect on physical and morphological properties of the cellulose beads formed. It has been observed that such cellulose aerogel beads prepared with lower concentrations of ZnO show shrinkage while drying whereas beads prepared with higher concentrations of ZnO do not exhibit much shrinkage. The dried cellulose aerogel beads were spherical with diameters between 2 and 2.5 mm. The skeletal density of all dried cellulose beads was measured as 1.5 g cm−3. FT-IR spectra reveal that the structure of cellulose I transformed to cellulose II during dissolution and regeneration in a coagulation medium, which was also confirmed from XRD measurements. The beads prepared with a NaOH/urea/ZnO aqueous solution exhibit better thermal stability. We found that the addition of 0.5 wt% ZnO to the NaOH/urea mixture greatly increased the specific surface area of the cellulose beads up to 407 m2 g−1 compared to control cellulose beads (341 m2 g−1). SEM images indicate that a dense nano-fibrillar network structure was formed in the interior of the cellulose aerogel beads prepared with 0.5 wt% ZnO.</style></abstract><work-type><style face="normal" font="default" size="100%">10.1039/C5RA17366C</style></work-type><urls><related-urls><url><style face="normal" font="default" size="100%">http://dx.doi.org/10.1039/C5RA17366C</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.1039/C5RA17366C</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>63</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">63</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Fickler, S.</style></author><author><style face="normal" font="default" size="100%">Milow, B.</style></author><author><style face="normal" font="default" size="100%">Ratke, L.</style></author><author><style face="normal" font="default" size="100%">Schnellenbach-Held, M.</style></author><author><style face="normal" font="default" size="100%">Welsch, T.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Development of High Performance Aerogel Concrete</style></title><secondary-title><style face="normal" font="default" size="100%">Energy Procedia</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Energy Procedia</style></full-title></periodical><pages><style face="normal" font="default" size="100%">406-411</style></pages><volume><style face="normal" font="default" size="100%">78</style></volume><keywords><keyword><style face="normal" font="default" size="100%">Aerogel</style></keyword><keyword><style face="normal" font="default" size="100%">Concrete</style></keyword><keyword><style face="normal" font="default" size="100%">High Performance Concrete</style></keyword><keyword><style face="normal" font="default" size="100%">Ultra-high Performance Concrete</style></keyword><keyword><style face="normal" font="default" size="100%">Heat Insulation</style></keyword><keyword><style face="normal" font="default" size="100%">Thermal Conductivity</style></keyword></keywords><dates><year><style face="normal" font="default" size="100%">2015</style></year><pub-dates><date><style face="normal" font="default" size="100%">2015/11/01/</style></date></pub-dates></dates><isbn><style face="normal" font="default" size="100%">1876-6102</style></isbn><abstract><style face="normal" font="default" size="100%">Current massive wall-building materials can be characterized by having either low thermal conductivities and thus low bulk densities and low compression strength or high compressions strength, high bulk densities and high thermal conductivities. In this paper, the first results of a research project are presented, in which a new aerogel-based construction material is developed that exhibits extra ordinary heat-insulating and load-carrying properties. By embedding silica aerogel granules in a high strength cement matrix “High Performance Aerogel Concrete” is developed, which combines the benefits of conventional concrete (compressive strength, unlimited moldability) with the properties of a heat insulating material. So far, various mixtures were examined in terms of their compressive strength and thermal conductivity. The first results are very promising with compressive strength between 3.0MPa and 23.6MPa and thermal conductivities between 0.16W/(mK) and 0.37W/(mK).</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://www.sciencedirect.com/science/article/pii/S1876610215024169</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1016/j.egypro.2015.11.684</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>64</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">64</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Schwan, Marina</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Novel superflexible resorcinol-formaldehyde aerogels and combining of them with aramid honeycombs</style></title><secondary-title><style face="normal" font="default" size="100%">MRS Communications</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">MRS Communications</style></full-title></periodical><pages><style face="normal" font="default" size="100%">177-181</style></pages><volume><style face="normal" font="default" size="100%">4</style></volume><number><style face="normal" font="default" size="100%">4</style></number><dates><year><style face="normal" font="default" size="100%">2014</style></year><pub-dates><date><style face="normal" font="default" size="100%">2014/12/01</style></date></pub-dates></dates><isbn><style face="normal" font="default" size="100%">2159-6867</style></isbn><abstract><style face="normal" font="default" size="100%">We report a new insulation composite of aramid honeycombs filled with superflexible resorcinol-formaldehyde aerogels. Aerogels produced via a sol-gel process were dried with supercritical C02. The aerogels exhibit a high, rubber-like flexibility, due to almost zero shrinkage and networking of nanoparticles and suitably sized macropores. The high porosity of the aerogels in the range of about 95-98% leads to a low thermal conductivity about 0.037 W/mK and low bulk density of 0.05 g/cm3. The filling of light and stiff aramid honeycombs with these flexible aerogels results in a composite with decreased thermal conductivity and modified mechanical properties.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1557/mrc.2014.31</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.1557/mrc.2014.31</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>65</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">65</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Lisinski, Susanne</style></author><author><style face="normal" font="default" size="100%">Hoepfner, Sandra</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">On an Effect of Fine Ceramic Particles on the Structure of Aerogels</style></title><secondary-title><style face="normal" font="default" size="100%">Microgravity Science and Technology</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Microgravity Science and Technology</style></full-title></periodical><pages><style face="normal" font="default" size="100%">103-110</style></pages><volume><style face="normal" font="default" size="100%">26</style></volume><number><style face="normal" font="default" size="100%">2</style></number><dates><year><style face="normal" font="default" size="100%">2014</style></year><pub-dates><date><style face="normal" font="default" size="100%">2014/10/01</style></date></pub-dates></dates><isbn><style face="normal" font="default" size="100%">1875-0494</style></isbn><abstract><style face="normal" font="default" size="100%">The addition of ferroelectric microparticles embedded in a nanostructured silica aerogel modifies the dry gel microstructure in a measurable way. The pore size distribution changes as well as the specific surface area. This indicates a possible positive effect of particles on the gelation characteristics. These modifications were observed in solutions gelling during a sounding rocket experiment in which approximately three minutes microgravity provided sufficient time for a convection and sedimentation free gelation to occur. The paper describes the synthesis procedures and the microstructures obtained for the gels under microgravity conditions.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1007/s12217-014-9380-2</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.1007/s12217-014-9380-2</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>66</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">66</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Laskowski, Jessica</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Subcritically dried resorcinol–formaldehyde aerogels from a base–acid catalyzed synthesis route</style></title><secondary-title><style face="normal" font="default" size="100%">Microporous and Mesoporous Materials</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Microporous and Mesoporous Materials</style></full-title></periodical><pages><style face="normal" font="default" size="100%">308-315</style></pages><volume><style face="normal" font="default" size="100%">197</style></volume><keywords><keyword><style face="normal" font="default" size="100%">Sol–gel</style></keyword><keyword><style face="normal" font="default" size="100%">Resorcinol–formaldehyde aerogel</style></keyword><keyword><style face="normal" font="default" size="100%">Base–acid catalyzed</style></keyword><keyword><style face="normal" font="default" size="100%">Subcritical drying</style></keyword></keywords><dates><year><style face="normal" font="default" size="100%">2014</style></year><pub-dates><date><style face="normal" font="default" size="100%">2014/10/01/</style></date></pub-dates></dates><isbn><style face="normal" font="default" size="100%">1387-1811</style></isbn><abstract><style face="normal" font="default" size="100%">Resorcinol–formaldehyde (RF) aerogels are prepared from a newly developed base–acid catalyzed sol–gel synthesis route. RF-gels synthesized are nanostructured and can be dried under ambient conditions without significant shrinkage. The sol–gel reaction of resorcinol (R) and formaldehyde (F) in water (W) (R/F=0.7, R/W=0.04) is initially catalyzed by Na2CO3 with a molar ratio of resorcinol to catalyst (R/C) of 100. After a specified time after starting the reaction (1–3h), citric acid (1M, 4–20vol.%) is added which initiates the acid catalyzed step and causes a spontaneous gelation. The time of change in pH value by adding acid is of great importance and influences the structure and properties of the material. RF-aerogels consisting of small particles much smaller than 100nm are prepared by applying a long base catalyzed step. Particle size, density, thermal conductivity and surface area are basically independent of the amount of citric acid, but this parameter influences the mechanical resistance. A theoretical model is used to describe the time dependence of catalyst change in the sol–gel process.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://www.sciencedirect.com/science/article/pii/S1387181114003497</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1016/j.micromeso.2014.06.031</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>68</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">68</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Ganesan, Kathirvel</style></author><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Facile preparation of monolithic κ-carrageenan aerogels</style></title><secondary-title><style face="normal" font="default" size="100%">Soft Matter</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">Soft Matter</style></full-title></periodical><pages><style face="normal" font="default" size="100%">3218-3224</style></pages><volume><style face="normal" font="default" size="100%">10</style></volume><number><style face="normal" font="default" size="100%">18</style></number><dates><year><style face="normal" font="default" size="100%">2014</style></year></dates><publisher><style face="normal" font="default" size="100%">The Royal Society of Chemistry</style></publisher><isbn><style face="normal" font="default" size="100%">1744-683X</style></isbn><abstract><style face="normal" font="default" size="100%">To the best of our knowledge, it is the first study reporting the synthesis of monolithic κ-carrageenan aerogels with meso- and macroporous structures, being unique in physical and chemical properties. We demonstrate a novel method to synthesize κ-carrageenan aerogels in which potassium thiocyanate was used as the source of specific ions. Aerogels were characterized by envelope density analysis, scanning electron microscopy, nitrogen adsorption–desorption analysis, X-ray powder diffractometry and IR spectroscopy. By varying the concentration of κ-carrageenan between 0.5 and 3 wt%, the envelope density can be linearly increased from 40 to 160 kg m−3. The sulphate functional groups in the wet gel and the specific ions are the key factors controlling the volume shrinkage of aerogels which average about 66%. The aerogels exhibit a fibrillar structure similar to cellulose aerogels. The fibril thickness was observed to be 10–15 nm and the specific surface area was about 230 m2 g−1. The existing meso- and macroporous structures were confirmed by nitrogen adsorption–desorption isotherm analysis and scanning electron microscopy. The aerogels were completely pure, free of specific ions and confirmed to be amorphous by powder X-ray diffraction. Hence, these porous materials can provide a matrix with a chelating function which can be used as a host in many applications.</style></abstract><work-type><style face="normal" font="default" size="100%">10.1039/C3SM52862F</style></work-type><urls><related-urls><url><style face="normal" font="default" size="100%">http://dx.doi.org/10.1039/C3SM52862F</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="12">https://doi.org/</style><style face="normal" font="default" size="100%">10.1039/C3SM52862F</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>67</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">67</key></foreign-keys><ref-type name="Book Section">5</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Ratke, Lorenz</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Aerogels Handbook Chapter 34, Aerogels for Foundry Applications</style></title></titles><dates><year><style face="normal" font="default" size="100%">2011</style></year></dates><urls><related-urls><url><style face="normal" font="default" size="100%">https://link.springer.com/chapter/10.1007/978-1-4419-7589-8_34</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1007/978-1-4419-7589-8_34</style></electronic-resource-num></record><record><database name="My EndNote Library.enl" path="U:\UzK\Webseite\My EndNote Library.enl">My EndNote Library.enl</database><source-app name="EndNote" version="21.0">EndNote</source-app><rec-number>88</rec-number><foreign-keys><key app="EN" db-id="vwerp5t9ffw5v9ees295v9z7pepwftew0pd0">88</key></foreign-keys><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Xiong, Weibo</style></author><author><style face="normal" font="default" size="100%">Abdusalamov, Rasul</style></author><author><style face="normal" font="default" size="100%">Itskov, Mikhail</style></author><author><style face="normal" font="default" size="100%">Milow, Barbara</style></author><author><style face="normal" font="default" size="100%">Rege, Ameya</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Analysis of the microstructural connectivity and compressive behavior of particle aggregated silica aerogels</style></title><secondary-title><style face="normal" font="default" size="100%">PAMM</style></secondary-title></titles><periodical><full-title><style face="normal" font="default" size="100%">PAMM</style></full-title></periodical><pages><style face="normal" font="default" size="100%">e202300224</style></pages><volume><style face="normal" font="default" size="100%">n/a</style></volume><number><style face="normal" font="default" size="100%">n/a</style></number><dates></dates><isbn><style face="normal" font="default" size="100%">1617-7061</style></isbn><abstract><style face="normal" font="default" size="100%">Abstract Porous media such as aerogels can exhibit unique properties including low thermal conductivity, low bulk density, and low sound velocity. However, the limited mechanical properties of aerogels restrict their widespread application. This study focuses on understanding the mechanical behavior of aggregated silica aerogels by investigating their microstructural connectivity and densification mechanisms under uniaxial compression. The interparticle connectivity is generated using the diffusion-limited cluster–cluster aggregation (DLCA) algorithm, and the particle connections are modeled by beam elements that account for contact interaction. The mechanical response of representative volume elements (RVEs) is analyzed in both linear and nonlinear regimes while applying periodic boundary conditions. The model is correlated with experimental compression test data to validate the simulation results. With increasing compressive strain, load transitions between multiple backbone paths appear in the network structure. Thus, the simulation model provides insight into the compression process. Moreover, the simulation model enables the examination of the influence of various model parameters and facilitates the evaluation of the power–law relationship between the elasticity modulus and porosity of aerogels.</style></abstract><urls><related-urls><url><style face="normal" font="default" size="100%">https://onlinelibrary.wiley.com/doi/abs/10.1002/pamm.202300224</style></url></related-urls></urls><electronic-resource-num><style face="normal" font="default" size="100%">https://doi.org/10.1002/pamm.202300224</style></electronic-resource-num></record></records></xml>