Results 21 to 30 of about 62,274 (334)
Optics Express, 2009 Optical transmission measurements were made on 98% porosity silica aerogel samples under various degrees of uniaxial strain. Uniaxially compressed aerogels exhibit large birefringence, proportional to the amount of compression, up to the 15% strain studied.
Bhupathi, P. +7 more
openaire +3 more sources
Preparation and electrochemical capacitance of high surface area TiO2–RuO2 aerogels
Open Ceramics, 2021 High surface area RuO2–TiO2 composite aerogels with different RuO2 concentrations were prepared through a modified non-alkoxide sol-gel route, followed by CO2 supercritical drying and evaluated as electrodes for energy storage devices.
Gabriella M.V. Dias +5 more
doaj +1 more source
SANS study of hybrid silica aerogels under "in situ" uniaxial compression [PDF]
, 2008 We have modified the inorganic silica network of aerogels with polydimethylsiloxane (PDMS), a hydroxyl-terminated polymer, to obtain an organic modified silicate (ORMOSIL). Reactions were assisted by high-power ultrasounds.
Esquivias Fedriani, Luis María +5 more
core +1 more source
Aerogels for Thermal Protection and Their Application in Aerospace
Gels, 2023 With the continuous development of the world’s aerospace industry, countries have put forward higher requirements for thermal protection materials for aerospace vehicles.
Runze Jin +8 more
doaj +1 more source
Structure and Photocatalytic Properties of Ni-, Co-, Cu-, and Fe-Doped TiO2 Aerogels
Gels, 2023 TiO2 aerogels doped with Ni, Co, Cu, and Fe were prepared, and their structure and photocatalytic activity during the decomposition of a model pollutant, acid orange (AO7), were studied.
Tinoco Navarro Lizeth Katherine +3 more
doaj +1 more source
Evolutionary Progress of Silica Aerogels and Their Classification Based on Composition: An Overview
Nanomaterials, 2023 Aerogels are highly porous materials with fascinating properties prepared using sol-gel chemistry. Due to their unique physical and chemical properties, aerogels are recognized as potential candidates for diverse applications, including thermal ...
Puttavva Meti +5 more
doaj +1 more source
Properties of bio-based gum Arabic/clay aerogels [PDF]
, 2016 Lightweight bio-based aerogels from sustainable gum Arabic (GA) and sodium montmorillonite (Na+-MMT) clay were prepared by means of a simple freeze-drying process. GA/clay aerogels showed high porosity (87.9%–94.9%) of mainly open type and the mechanical
Abt, Tobias Martin +2 more
core +2 more sources
Editorial on Special Issues “Aerogels” and “Aerogels 2018” [PDF]
Gels, 2020 Aerogels can be defined as ultralight materials with a 3D porous structure, similar to their parent wet gels, where the solvent has been replaced by a gas without a collapse of the gel structure, thanks to the drying process used (supercritical CO2 drying, freeze drying, etc [...]
Quignard, Françoise, Tanchoux, Nathalie
openaire +3 more sources
TiO2-doped resorcinol–formaldehyde (RF) polymer and carbon gels with photocatalytic activity [PDF]
, 2013 Resorcinol-formaldehyde (RF) polymer gels offer a relatively easy and versatile route for incorporating metals into a carbon aerogel matrix. The hybrid materials thus obtained are ideal candidates for applications involving enhanced adsorption or ...
Czakkel, Orsolya +3 more
core +3 more sources
Composite Aerogel for Heat Insulation
Chemical Engineering Transactions, 2020 Silica aerogels are often brittle and MTMS is rather expensive. Therefore, it is necessary to strengthen MTMS silica aerogels and lower their cost. In this research, hydrophobic composite monolithic methyltrimethoxysilane (MTMS) based aerogels were ...
Oanh T. H. Cao +5 more
doaj +1 more source