Abstract

Following our research concerning thermoprogrammed reduction (TPR) and thermoprogrammed desorption (TPD) of and from bimetallic oxides, this paper deals with the Cu-Cr system. The TPR curves give information concerning surface reconstruction induced by the interaction of the catalysts with hydrogen. The hydrogen consumption depends on the method of catalyst preparation, as well as on the nature of the support. The TPD curves evidenced strongly bonded forms of hydrogen chemosorption which are desorbed at high temperatures.

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