Highly active Au/TiO2 catalysts for low-temperature CO oxidation:: preparation, conditioning and stability

被引：162

作者：

Schumacher, B

Plzak, V

Kinne, M

Behm, RJ

机构：

[1] Ctr Solar Energy & Hydrogen Res, D-89081 Ulm, Germany

[2] Univ Ulm, Dept Surface Chem & Catalysis, D-89069 Ulm, Germany

来源：

CATALYSIS LETTERS | 2003年 / 89卷 / 1-2期

关键词：

supported catalyst; catalyst activation; catalyst deactivation; CO oxidation; selective CO oxidation; particle size; Au/TiO2; TEM; DRIFTS; XPS; XRD; kinetic measurements;

D O I：

10.1023/A:1024731812974

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：

Using a modified deposition-precipitation procedure and a new reductive conditioning method, Au/TiO2 catalysts with small metallic Au particles(<2 nm) and a very high activity for low-temperature CO oxidation were prepared. The particles are stable during reaction; a decreasing activity is caused by the accumulation of by-products on the catalyst.

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页码：109 / 114

页数：6

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