Aerogels can be used in spaceflight applications as thermal insulators due to their low density, conductivity, and tortuous path for solid conduction. However, the aerogel formulation must optimized increase stability of aerogels, a drastic densification decrease surface area often is exhibited after high-temperature exposure. This work considers yttria-stabilized zirconia (YSZ) which have cond...

Aerogels are highly porous structures produced by replacing the liquid solvent of a gel with air without causing collapse in solid network. Unlike conventional fabrication methods, additive manufacturing (AM) has been applied to fabricate 3D aerogels customized geometries specific their applications, designed pore morphologies, multimaterial structures, etc. To date, three major AM technologies...

Nanofibrillated cellulose (NFC) was incorporated to reduced graphene oxide (rGO) for fabrication of multifunctional amphiphilic aerogels. The as-prepared amphiphilic aerogel showed excellent recoverability, superior absorption capacity for both organic solvents and water, and an electrical conductivity sensitive to compressive strain making it highly potential to be used as a pressure-responsiv...

Computer simulation results for spin models and liquid crystal or-n aerogels have been com ared in order to assess our understanding of the modeling of these confinefs stems. The various models adopted so far are compared with experimentaf results and with simulation data for a new Lebwohl-Lasher type model with sprinkled silica spins and none is found to be completely satisfactory.

Impregnated mesoporous carbon aerogels serve as novel catalysts for the first time with respect to low-temperature oxidation of H(2)S to elemental sulfur, and exhibit particularly high activity (up to 3 g sulfur per gram of catalyst) and high selectivity.

Mechanically excellent native cellulose nanofibers that are cleaved from plant cell walls have been modified by functionalized few-walled carbon nanotubes for hybrid nanofiber/nanotube aerogels. They show elastic mechanical behavior in combination with reversible electrical response under compression allowing responsive conductivity and pressure sensing. The concept combines wide availability o...

Highly-porous samples of tantalum pentoxide (Ta2O5) aerogel were compressed from initial densities of 0.1, 0.15 and 0.25 g/cm by shock-waves with strengths between 0.3 and 3 Mbar. The compressed material was between 5 and 15 times as dense as the pre-compressed aerogels with temperatures of about 5 eV (58,000 °K). These strong shock-wave loadings were produced by the OMEGA laser system at the L...

Cellulose-Derived Aerogels In article number 2102892, Saad A. Khan and co-workers highlight the historical background recent scientific achievements in design, development, performance of hybrid aerogels derived from cellulose. The impact various approaches to incorporate organic inorganic moieties including silica, metal–organic frameworks (MOFs), graphene within aerogel matrix is investigated...

The high specific surface areas and porosities of aerogels can impart desirable properties to textiles. most established application in textiles is the enhancement thermal insulation this has been subject some excellent reviews. This review, for first time, discusses other applications considers enhancements mechanical acoustic properties, water repellency, permeability air water, acoustics, pr...