Active Oxygen on a Au/TiO2 Catalyst: Formation, Stability, and CO Oxidation Activity

被引：322
|
作者：
Widmann, Daniel [1 ]
Behm, R. Juergen [1 ]
机构：
[1] Univ Ulm, Inst Surface Chem & Catalysis, D-89069 Ulm, Germany
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2011年 / 50卷 / 43期
关键词：
gold; heterogeneous catalysis; oxidation; oxygen; reaction mechanism; SUPPORTED AU NANOPARTICLES; GOLD CATALYSTS; CARBON-MONOXIDE; TIO2; NANOCLUSTERS; ACTIVATION; ADSORPTION;
D O I：
10.1002/anie.201102062
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Ideal location: The active oxygen for CO oxidation on Au/TiO2 catalysts is a highly stable oxygen species, whose formation is facile and hardly activated. This species is proposed to be surface lattice oxygen at the perimeter of the Au-TiO2 interface, activated by the presence of the Au nanoparticle. At higher temperatures, thermally activated Olatt migration also gives access to adjacent Olatt species. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码：10241 / 10245
页数：5
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