XPS and DRIFTS operando studies of an inverse CeO2/CuO WGS catalyst: deactivating role of interfacial carbonates in redox activity

被引：30

作者：

Lopez Camara, Antonio ^{[1
]}

Monte, Manuel ^{[1
]}

Martinez-Arias, Arturo ^{[1
]}

Carlos Conesa, Jose ^{[1
]}

机构：

[1] CSIC, Inst Catalisis & Petroleoquim, Madrid 28049, Spain

来源：

CATALYSIS SCIENCE & TECHNOLOGY | 2012年 / 2卷 / 12期

关键词：

GAS-SHIFT REACTION; IN-SITU; INFRARED-SPECTROSCOPY; CO OXIDATION; WATER; CERIA; COPPER; ADSORPTION; H2O; H-2;

D O I：

10.1039/c2cy20399e

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：

An inverse CeO2/CuO catalyst has been examined by XPS and DRIFTS spectroscopies under reactant mixtures relevant to the low temperature WGS process. It is shown that the presence of H2O in the reactant mixture promotes catalyst reduction by facilitating the decomposition of interfacial carbonate species which hinder the redox processes leading to generation of the species catalytically active in WGS.

引用

页码：2436 / 2439

页数：4

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