Promoting Effect of Ce Doping on the CuZn/ZnAl2O4 Catalysts for Methanol Decomposition to Hydrogen and Carbon Monoxide

A series of CuZn/xCe-ZnAl2O4 catalysts (CZ/xCe-ZAO) with different contents of Ce doping (x = 0, 3, 5, and 7 wt%) were prepared by precipitation. The samples were applied for the hydrogenation production from methanol decomposition. Ce doping was found to effectively improve the reaction activity of the catalysts. CZ/5Ce-ZAO exhibits 100.0% methanol conversion and selectivity to hydrogenation of 98.9% at 300 °C (WHSV = 1.5 h−1), which is...