TPR STUDY OF ELECTROLESS-PLATED COPPER-CATALYSTS

An electroless copper plating method, an impregnation method, and a pr ecipitation method were used to prepare copper/alumina catalysts with different loadings. Temperature-programmed reduction (TPR) was employe d to characterize the reducibility of copper catalysts prepared by dif ferent methods. The experimental results showed that the copper cataly st prepared by electroless plating method had the lowest reduction tem perature, followed by the catalyst prepared by the precipitation metho d, and the catalyst prepared by the impregnation method had the highes t reduction temperature.