CuO-CeO2 catalysts synthesized by various methods: Comparative study of redox properties

被引：99

作者：

Gurbani, A. ^{[1
]}

Ayastuy, J. L. ^{[1
]}

Gonzalez-Marcos, M. P. ^{[1
]}

Gutierrez-Ortiz, M. A. ^{[1
]}

机构：

[1] Univ Pais Vasco EHU, Fac Ciencia & Tecnol, Dept Ingn Quim, Bilbao 48080, Spain

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2010年 / 35卷 / 20期

关键词：

Copper-ceria; Redox; PROX; CO oxidation; SELECTIVE CO OXIDATION; PREFERENTIAL OXIDATION; COPPER-CERIA; CUO/CEO2; CATALYSTS; COMBUSTION METHOD; CARBON-MONOXIDE; HYDROGEN; GAS; COPRECIPITATION; PERFORMANCE;

D O I：

10.1016/j.ijhydene.2010.04.045

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：

Three different preparation methods have been used to synthesize CuO-CeO2 catalysts with 7 wt.% copper loading: coprecipitation (CP), sol-gel (SG) and urea nitrate combustion (UC). All the samples have been characterized by a series of techniques such as XRD, Raman, TPR, TPD and OSC, in order to understand their different performance in CO oxidation, as a function of redox properties and catalyst structure. Among the catalysts, clearly CuCe-CP shows the lower activity because it presents the structure of a solid solution. CuCe-SG and CuCe-UC catalysts show much better performance in CO oxidation, in accordance to their higher redox capacity. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.

引用

页码：11582 / 11590

页数：9

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