Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 35, Issue 20, Pages 11582-11590Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2010.04.045
Keywords
Copper-ceria; Redox; PROX; CO oxidation
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Funding
- Spanish MEC [ENE2007-67975]
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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.
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