REDUCTION OF 2-COMPONENT CUO-CR2O3 MIXED OXIDES AND THEIR CATALYTIC ACTIVITY

The reduction with hydrogen of the two-component mixed oxides CuO-Cr2O3 containing various amounts of both components in the whole range from 0 to 100% was studied, as well as some physico-chemical and catalytic properties. The hydrogen peroxide decomposition served as a test catalytic reaction. A significant effect of the reduction on the rate constant of the test reaction was found, as well as on the value of its apparent activation energy. Pronounced changes were observed, especially in the border ranges of the composition. This fact may be connected with the mutual influence of both components in the catalyst.