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- W2768933532 abstract "Understanding the reaction mechanism and the nature of the reactive species of heterogeneous catalysts under reaction conditions is the first step in the design of more consistent, reliable, and practical catalysts. We used density functional theory (DFT) calculations to study the mechanism of CO oxidation catalyzed by CeO2-supported Au nanoparticles (NPs) under reaction conditions by considering the sequential CO adsorption onto and CO saturation of Au NPs. We found that the Au9 NPs supported by CeO2(100) and CeO2(111) bind as many as eight or four CO molecules, respectively. The last-bound CO molecule opens the fast CO oxidation pathway. The CO oxidation pathways constructed on both systems show that the reaction occurs at the Au–CeO2 interface via the Mars–van Krevelen mechanism. We found that the most important O–C–O-type intermediate was spontaneously formed at the Au–CeO2(100) interface upon the sequential binding of CO molecules onto the Au NPs. The reaction pathway therefore becomes relatively sim..." @default.
- W2768933532 created "2017-12-04" @default.
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- W2768933532 date "2017-11-28" @default.
- W2768933532 modified "2023-10-12" @default.
- W2768933532 title "Catalytic CO Oxidation by CO-Saturated Au Nanoparticles Supported on CeO<sub>2</sub>: Effect of CO Coverage" @default.
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- W2768933532 doi "https://doi.org/10.1021/acs.jpcc.7b09780" @default.
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