Abstract
The effect of heat treatment on the parameters of the porous structure of powders in the system Sn(IV) ― Sb ― O is studied. It is established that xerogels of coprecipitated tin and antimony hydroxides dried at 360 K are microporous adsorbents containing particles of both crystalline and amorphous phases. During powder heat treatment there is formation of solid solutions based on tin dioxide and there is redistribution of the microporous structure into a mesoporous structure. This is accompanied by a reduction in specific surface and an increase in pore size.
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