Effect of Reduction Treatment on CO Oxidation with CeO 2 Nanorod‐Supported CuO x Catalysts
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چکیده
منابع مشابه
WGS and CO - PrOx reactions using gold promoted copper - ceria catalysts : “ bulk CuO - CeO 2 vs . CuO - CeO 2 / Al 2 O 3 with low mixed oxide content ”
A copper-ceria bulk catalyst has been compared to a series of catalysts designed according to the as called “supported approach”, corresponding to the dispersion of low content mixed copper-ceria oxide on alumina matrix. The principal characteristics of both types of catalysts are contemplated and the differences in their electronic and redox properties discussed in details. As a plus, the gold...
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Density functional theory was used to study the CO oxidation catalytic activity of CeO(2)-supported Au nanoparticles (NPs). Experimental observations on CeO(2) show that the surface of CeO(2) is enriched with oxygen vacancies. We compare CO oxidation by a Au(13) NP supported on stoichiometric CeO(2) (Au(13)@CeO(2)-STO) and partially reduced CeO(2) with three vacancies (Au(13)@CeO(2)-3VAC). The ...
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4 ABSTRACT: In this work, an Arrhenius-based model for the 5 high-temperature reduction and oxidation of CeO2 is 6 developed. The model is shown to agree well with both 7 literature data for the equilibrium oxygen vacancy concen8 tration and novel experimental kinetics of oxidation and 9 reduction obtained by the authors. The form of the Arrhenius 10 rate equation was determined from the proper...
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ژورنال
عنوان ژورنال: ChemCatChem
سال: 2017
ISSN: 1867-3880,1867-3899
DOI: 10.1002/cctc.201700972