Influence of the Method of Preparation on the Activity of ZnO-Al2O3 Catalysts

Department of Chemistry Indian Institute of Technology, Madras-600036

Manuscript received, August ; accepted 19 September 1973

ZnO-Al₂O₃ catalysts prepared by impregnation as well as coprecipitation have been investigated for the decomposition of isopropanol. Coprecipitated catalysts have better dehydrogenation properties while the impregnated catalysts exhibit better dehydration properties. In both the preparations, depending upon the composition, the seat of dehydrogenation activity is the ZnO-ZnAl₂O₄ or ZnO-Al₂O₃ interface. The micropores in the catalysts influence the dehydration activity considerably.