Characterisation of active phases of a copper catalyst for methanol oxidation under reaction conditions:: an in situ X-ray absorption spectroscopy study in the soft energy range

被引：73

作者：

Knop-Gericke, A

Hävecker, M

Schedel-Niedrig, T

Schlögl, R

机构：

[1] MPG, Fritz Haber Inst, D-14195 Berlin, Germany

[2] Hahn Meitner Inst Berlin GmbH, Abt SE4, D-14109 Berlin, Germany

[3] BESSY, D-12489 Berlin, Germany

来源：

TOPICS IN CATALYSIS | 2001年 / 15卷 / 01期

关键词：

in situ OK-NEXAFS; partial oxidation of methanol; copper; copper suboxide;

D O I：

10.1023/A:1009015728467

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The oxidation of methanol over copper is investigated by X-ray absorption spectroscopy in the soft X-ray range under reaction conditions. This in situ method allows the surface electronic structure of the catalyst to be correlated with its performance. The correlation reveals information about the catalytic function of various oxygen species on the surface. Oxide and metastable suboxide species affect in distinctly different ways the multiple action of copper as selective or unselective heterogeneous catalyst.

引用

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页码：27 / 34

页数：8

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