Promotion effect of FeOx addition on the catalytic activity of supported Cu catalysts for the water-gas shift reaction

Among the supported Cu-FeO(x) catalysts, Al(2)O(3)-supported Cu-FeO(x) catalyst exhibited the highest activity for WGS reaction. The enhancement of the catalytic activity by adding FeO(x) to Cu/Al(2)O(3) could be interpreted by the two possibilities; one is the formation of highly dispersed Cu(0) and the other is the participation of reduced FeO(x) in WGS reaction in the presence of Cu(0).