Mechanism of gold activation in supported gold catalysts for CO oxidation

被引：63

作者：

Hao, ZP ^{[1
]}

An, LD

Wang, HL

Hu, TD

机构：

[1] Chinese Acad Sci, Res Ctr Eco Environm Sci, Beijing 100085, Peoples R China

[2] Chinese Acad Sci, Lanzhou Inst Chem Phys, Lanzhou 730000, Peoples R China

[3] Yantai Univ, Coll Chem, Yantai 264005, Peoples R China

[4] Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China

[5] Chinese Acad Sci, Dalian Inst Chem Phys, Dalian, Peoples R China

来源：

REACTION KINETICS AND CATALYSIS LETTERS | 2000年 / 70卷 / 01期

关键词：

mechanism of gold activation; gold catalyst; catalytic active center;

D O I：

10.1023/A:1010383220836

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：

Based on the structure characterization of Au/Fe2O3 catalysts, the mechanism of gold activation in supported gold catalysts was proposed as follow: Au3+ d(8) 6s(0) (catalyst precursor) (activation treatment)-->Audelta+ d(10-delta)6s(1) (catalyst) The possible catalytic active state is the partially oxidized gold (Audelta+) with unoccupied outer d orbitals, similar to the outer d orbital structure of Pt. Thus "inert" gold can become very active for CO oxidation.

引用

页码：153 / 160

页数：8

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