Department of Industrial Machine & Plant Ind. Co Ltd., Environmental Process Development Center, Technical Research Laboratory, Ishikawajima-Harima Heavy Industries Co., Ltd., No. 1 Shin-Nakahara-Cho Isogo-ku, Yokohama 235-8501, Japan
Abstract:
Catalytic performances of Pd/ZnO in oxidative methanol reforming reaction were studied as a function of Pd loading. It was confirmed that the formation of Pd–Zn alloy is essential to the selective production of hydrogen. High active Pd/ZnO, comparable to commercial Cu-Zn catalyst, was obtained with higher Pd loading. Selectivity of the reaction was greatly increased by increasing Pd loading on ZnO. At higher Pd loadings (>5%), co-precipitation was superior to impregnation for the catalyst preparation. The catalytic performances were also discussed based on results from X-ray diffraction (XRD) characterization.