Spectroscopic Study on the Nature of Active Entities in Copper–Ceria CO-PROX Catalysts

被引：0
|
作者：
A. Martínez-Arias
D. Gamarra
M. Fernández-García
A. Hornés
C. Belver
机构：
[1] CSIC,Instituto de Catálisis y Petroleoquímica
来源：
Topics in Catalysis | 2009年 / 52卷
关键词：
CuO–CeO; catalysts; CO-PROX; -DRIFTS; -XANES; In situ Raman; Kinetic analysis;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A series of oxidised copper-ceria catalysts with varying copper loadings and prepared by two different methods (impregnation of ceria and coprecipitation of the two components within reverse microemulsions) have been examined with the aim of determining the nature of active entities for the two main (CO and H2) competing oxidation reactions that take place during preferential oxidation of CO in H2-rich streams over this type of catalysts. The analysis is mainly based on operando spectroscopic exploration by DRIFTS and XANES as well as in situ analysis by Raman. The results allow establishing a model of the catalytic behaviour of this type of catalysts which can provide keys to control their CO-PROX catalytic properties.
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页码：1425 / 1432
页数：7
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