Influence of parameters of synthesis, drying and calcination on porous structure of alumina aerogles.

Synthesis of alumina aerogels was carried out by hydrolysis of alumina isopropanolate and butanolate in benzene, methanol and isopropanol solutions as components of support precursors followed by gelation, drying under supercritical conditions and calcination. The influence of type of precursor and solvent, synthesis temperature as well as drying and calcination temperature on bulk density, specific surface area and total pore volume was investigation.