Sol-gel processing of copper-chromium catalysts for ester hydrogenation

A. Kaddouri, C. Mazzocchia, E. Tempesti, R. Nomen, J. Sempere

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Copper chromite catalysts were prepared by using a new metal organic precursor, M(OR)n, which was dissolved in organic solvent, hydrolysed and condensed to form inorganic polymers containing M-O-M linkages. In the cases of Ba and Mn promotion, the corresponding metal oxide was admixed to the copper-chromium solution prior to gelification. After drying in helium atmosphere, the precursor was subjected to thermal treatment at different temperatures (373-873 K) and in ditrerent atmospheres (air, nitrogen or hydrogen). Both the catalysts and the industrial Engelhard catalyst were characterized by various techniques (TG-DTA, HTXRD, IR, BET, metallic copper surface area and porosimetry measurements) and evaluated for ester hydrogenation.

Idioma originalAnglès
Pàgines (de-a)533-545
Nombre de pàgines13
RevistaJournal of Thermal Analysis and Calorimetry
Estat de la publicacióPublicada - 1998


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