Support Effect on Catalytic Oxidation of Formaldehyde over Supported Gold Catalysts

Abstract

Abstract: Au catalysts supported on Al2O3, TiO2, CeO2, and SiO2 were tested for HCHO oxidation. The reactivity was influenced by the chemical state of Au and the properties of the supports. The highest activity obtained on the Au/CeO2 catalyst was due to cationic Au species in the catalyst and the formation of AuCeO2 solid solution, by which oxygen vacancies could activate the oxygen species for the reaction.

Key words: gold, supported catalyst, formaldehyde, low temperature oxidation, gold-ceria solid solution

LI Hongfang;LIU Xuesong;GUO Cunxia;LIU Tong;LUO Mengfei;LU Jiqing*. Support Effect on Catalytic Oxidation of Formaldehyde over Supported Gold Catalysts[J]. Chinese Journal of Catalysis, 2009, 30(10): 1001-1006.

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https://www.cjcatal.com/EN/Y2009/V30/I10/1001

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Support Effect on Catalytic Oxidation of Formaldehyde over Supported Gold Catalysts

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