The application of incorporation model in γ-Al2O3-supported single and dual metal oxide catalysts: A review

The investigation of the interaction between the surface dispersed components and the supports is the key to understand the nature of catalytic reactions. A single metal oxide (CuO) and dual metal oxides (CuO-Mn2O3, CuO-CoO, etc.) were supported on gamma-Al2O3 to produce model catalysts. The dispersion behavior of these metal oxides on the surface of gamma-Al2O3 and some physicochemical properties were explained using the Incorporation Model. These properties were considered together with their catalytic performances in CO+O-2 and NO+CO model reactions to explore "composition-structure-property" relationships. A possible reaction mechanism involving surface synergetic oxygen vacancy on the supported dual metal oxide catalysts was proposed to approach the nature of NO reduction by CO. (C) 2013, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.