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

被引：105

作者：

Yang, Xiaomin ^{[1
]}

Wang, Xiuna ^{[1
]}

Liang, Changhai ^{[1
]}

Su, Weiguang ^{[2
]}

Wang, Chuang ^{[1
]}

Feng, Zhaochi ^{[2
]}

Li, Can

Qiu, Jieshan ^{[1
]}

机构：

[1] Dalian Univ Technol, Ctr Nano Mat Sci, Carbon Res Lab, State Key Lab Fine Chem, Dalian 116012, Peoples R China

[2] Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2008年 / 9卷 / 13期

基金：

中国国家自然科学基金;

关键词：

Au/TiO2; water; aerobic oxidation; alcohol;

D O I：

10.1016/j.catcom.2008.05.021

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页码：2278 / 2281

页数：4

共 35 条

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