Title: Pore size control of mesoporous SnO2 prepared by using stearic acid
Abstract: Mesoporous SnO2 with controlled pore size was prepared by calcination of the precursors containing stearic acid (STA). The vaporization of STA promoted the crystallization of SnO2 at low temperature. Crystallization accompanied with the vaporization of STA at low temperature allowed SnO2 crystallites to aggregate loosely to form mesopores. The SnO2 consisted of the aggregates of crystallites, and the mesopores were located at intercrystallites. The pore size and crystallite size of the mesoporous SnO2 increased with increasing calcination temperature (Tc). The specific surface area decreased with increasing Tc, while the pore volume showed little change in the range of Tc. The crystal growth of SnO2 during calcination at high Tc provided large mesopores at interparticles.
Publication Year: 2003
Publication Date: 2003-05-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 32
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