Diethyl and methyl-tert-buthyl ethers as new solvents for aerogels preparation

SiO2–TiO2 binary aerogels: Synthesis in new supercritical fluids and study of thermal stability

“…According to our data, the type of SCF used in the synthesis of oxide aerogels considerably affects AG microstructure [24][25][26][27]. Thus, the specific surface area of AG based on SiO 2 , Al 2 O 3 , and ZrO 2 prepared by supercritical drying in diethyl and methyl tert-butyl ethers and in hexafluoroisopropanol is approximately twice as large as that of aerogels obtained by drying in traditionally used ethanol; their porosity is also considerably larger.…”

Facile synthesis of vanadia aerogels with controlled V3+/V4+ ratio

“…To preserve their unique ramified porous structure, aerogels are normally synthesized by a supercritical drying technique [12][13][14]. The choice of the solvent greatly affects the composition and microstructure of thus obtained materials [12,[15][16][17].…”

“…The choice of the solvent greatly affects the composition and microstructure of thus obtained materials [12,[15][16][17]. In vanadium oxides aerogels synthesis, V 2 O 5 Á nH 2 O wet gel is generally used as a precursor [3][4][5][6][7].…”

Functionalization of aerogels by the use of pre-constructed monomers: the case of trifluoroacetylated (3-aminopropyl) triethoxysilane

“…Alcohols and carbon dioxide (CO 2 ) are the most conventional types of SCD uids for aerogels preparation, 8 while other solvents can also be used. 9,10 The surface composition of aerogels depends on the conditions of SCD treatment. For instance, the surface of aerogels dried in alcohols is covered by corresponding alkyl groups.…”