Characterization of the oxidation states of supported gold species by IR spectroscopy of adsorbed CO

被引：146

作者：

Mihaylov, Mihail

Knoezinger, Helmut

Hadjiivanov, Konstantin

Gates, Bruce C.

机构：

[1] Univ Munich, Dept Chem & Biochem, D-81377 Munich, Germany

[2] Bulgarian Acad Sci, Inst Gen & Inorgan Chem, BU-1113 Sofia, Bulgaria

[3] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA

来源：

CHEMIE INGENIEUR TECHNIK | 2007年 / 79卷 / 06期

关键词：

catalysts; IR spectroscopy; oxidation;

D O I：

10.1002/cite.200700029

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The use of IR spectroscopy of adsorbed CO for determination of gold speciation on supported gold catalysts is reviewed. Different ionic and metallic sites (Au3+, An(+), Au-0, and Au-) can be differentiated on the basis of the frequency and stability of their surface carbonyl species formed after CO adsorption. in addition, the study of CO adsorption and reaction with other gases can provide unique information on the mechanisms of catalytic reactions with participation of CO. Finally, results from complementary techniques such as X-ray absorption spectroscopy, also useful for determination of gold oxidation state, are briefly considered.

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收藏

页码：795 / 806

页数：12

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