Collect. Czech. Chem. Commun. 1992, 57, 2561-2564

Surface Redox Strength and Catalytic Activity of the CuO/ZnO System

Donka Ch. Andreeva, Matey G. Kalchev and Atanas A. Andreev

Institute of Kinetics and Catalysis, Bulgarian Academy of Sciences, "Acad. G. Bonchev" Street, bl. 11, 1113 Sofia, Bulgaria


Information about the reduction properties and reactivity of surface hydroxyl groups has been obtained from the interaction of iodine with a series of CuO/ZnO samples in wide range of concentrations. The maximum capacity of iodine reduction and maximum catalytic activity in water gas shift reaction were observed with the sample containing 20 wt.% CuO. The correlation found gives evidence in favour of the associative mechanism of reaction.