Abstract
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-Mn 2 O 3 , CuO-CoO, etc.) were supported on γ-Al 2 O 3 to produce model catalysts. The dispersion behavior of these metal oxides on the surface of γ-Al 2 O 3 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. This review summaries the research progress of the Incorporation Model in γ-Al 2 O 3 -supported single and dual metal oxide catalysts for CO+O 2 and NO+CO model reactions and proposes a reaction mechanism involving SSOV.
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