Title of Paper:Aerobic oxidation of alcohols over Au/TiO2: An insight on the promotion effect of water on the catalytic activity of Au/TiO2

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Date of Publication:2008-07-20

Journal:CATALYSIS COMMUNICATIONS

Included Journals:SCIE

Volume:9

Issue:13

Page Number:2278-2281

ISSN No.:1566-7367

Key Words:Au/TiO2; water; aerobic oxidation; alcohol

Abstract:The unique and significant promotion effect of water has been evidenced by the selective oxidation of benzyl alcohol to benzaldehyde over Au/TiO2 Catalysts. Water has dual promotional functions in the reaction system: to help form unique microdroplets in a multiphase reaction system and to assist the oxygen adsorption and activation. The conversion of benzyl alcohol at a molar ratio of water to solvent (p-xylene) of 7 is 7 times higher than in the absence of water. The present work has highlighted the potential of Au/TiO2 Catalysts in aerobic oxidation of alcohols in the unique multiphase reaction system with water as promoting solvent. (C) 2008 Elsevier B.V. All rights reserved.