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Influence of WO3 monolayer modification on the properties of CexZr1−xO2-supporting CuO catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
52990 46892 2009 5 PDF Available
Title
Influence of WO3 monolayer modification on the properties of CexZr1−xO2-supporting CuO catalysts
Abstract

Catalytic properties of CuO supported on CexZr1−xO2 and WO3/CexZr1−xO2 with different Ce/Zr molar ratios are studied by using XRD, TPR, FT-IR and testing catalytic activities in low temperature CO + O2 reaction. The results show that with the addition of Zr, dispersion capacity and CO oxidation activities will decrease; H2 reduction and CO adsorption behaviors are also different. However, for copper oxide supported on CexZr1−xO2 pre-modified with WO3 full monolayer, i.e., CuO/WO3/CexZr1−xO2 samples, all these catalytic properties are similar and independent of the Ce/Zr molar ratios. Experiment results have been tentatively discussed by considering the change of surface structure of these supports.

Keywords
CexZr1−xO2; WO3 monolayer; Dispersion; CO oxidation
First Page Preview
Influence of WO3 monolayer modification on the properties of CexZr1−xO2-supporting CuO catalysts
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 10, Issue 5, 25 January 2009, Pages 741–745
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis