Catalytic Partial Oxidation of Methane over Ni/CeO2 -ZrO2 -Al2O3

Abstract Nickel catalysts supported on CeO 2 -ZrO 2 -CeO 2 , ZrO 2 -Al 2 O 3 and Al 2 O 3 were prepared and characterized by means of X-ray diffraction (XRD), BET areas, H 2 temperature-programmed reduction (H 2 -TPR), and X-ray photoelectron spectroscopy (XPS). Through the test of catalytic partial oxidation of methane (CPOM), Ni/CeO 2 -ZrO 2 -Al 2 O 3 displayed the highest activity, which resulted from its largest BET area and best NiO dispersion. Furthermore, Ni/CeO 2 -ZrO 2 -Al 2 O 3 maintained a long-time stability in CPOM, which was attributed to its best coking resistance among all the prepared catalysts.