The Key Laboratory of Science and Technology of Controllable Chemical Reactions, Ministry of Education, Beijing University of Chemical Technology, 15 Beisanhuan Dong Road, P.O. Box 35, Beijing 100029, China
Abstract:
A series of the Ce1?xCuxO2?x/Al2O3/FeCrAl catalysts (x = 0–1) were prepared. The structure of the catalysts was characterized using XRD, SEM and H2-TPR. The catalytic activity of the catalysts for the combustion of methane was evaluated. The results indicated that in the Ce1?xCuxO2?x/Al2O3/FeCrAl catalysts the surface phase structure were the Ce1?xCuxO2?x solid solution, -Al2O3 and γ-Al2O3. The surface particle shape and size were different with the variety of the molar ratio of Ce to Cu in the Ce1?xCuxO2?x solid solution. The Cu component of the Ce1?xCuxO2?x/Al2O3/FeCrAl catalysts played an important role to the catalytic activity for the methane combustion. There were the stronger interaction among the Ce1?xCuxO2?x solid solution and the Al2O3 washcoats and the FeCrAl support.