Abstract
The preparation of ultrafine particles of titania was carried out by the thermal decomposition of titanium tetra-isopropoxide in gas phase. The effects of preparation conditions on the surface area, micropore distribution and acid concentration of the titania were examined to elucidate the applicability of the particles to a catalyst support.It was found that the particles had about 100m2·g-1 of surface area, but they had no pore volume. The acid concentration in the titania was dependent upon the preparation temperature of the particles. Nickel catalyst prepared by an impregnation method on the titania had high activity for benzene hydrogenation.
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