THE PREPARATION OF BINARY CARBONACEOUS TITANIA AEROGEL PRECURSOR BY USING SOL-GEL METHOD

By using carbonaceous aqua mesophase and titanium tetrachloride as starting materials, respectively, the carbonaceous sol and titania sol were prepared. Then the two sols were mixed and dried under supercritical conditions to obtain ultrafine carbonaceous titania aerogel powder precursor. The binary carbon titania powder was characterized by FT IR, TEM and X ray analysis. Results showed that the binary carbonaceous titania powders with particle sizes below 10 nm are homogeneously distributed, and have higher BET surface area as well as a loose appearance structure.