Effect of supercritical drying parameters on the phase composition and morphology of aerogels based on vanadium oxide

Aerogels based on vanadium oxide were obtained by supercritical drying in carbon dioxide (scCO2) and organic solvents (acetone, n-hexane, n-heptane, and n-octane). The performed study allowed us to reveal the effect of experimental parameters (precursor type, type of primary and secondary solvents) on the phase composition and morphology of obtained aerogels. The obtained samples were studied by X-ray diffractometry, scanning electron microscopy, and capillary nitrogen adsorption-desorption (BET) method.