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Effect of preparation method on the hydrogen production from methanol steam reforming over binary Cu/ZrO2 catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
44280 46013 2006 8 PDF Available
Title
Effect of preparation method on the hydrogen production from methanol steam reforming over binary Cu/ZrO2 catalysts
Abstract

Several methods (impregnation, oxalate gel–coprecipitation and conventional aqueous coprecipitation) have been comparatively examined for the preparation of binary Cu/ZrO2 catalysts for the catalytic production of hydrogen by steam reforming of methanol (SRM). A variety of techniques including N2 adsorption, XRD, N2O chemisorption, XRD, H2-TPR, and XPS were used to characterize the physical and chemical properties of the as-obtained catalysts. The results show that the preparation method significantly affects the component dispersion, microstructural properties and the resulting catalytic performance with respect to methanol conversion, H2 production and CO concentration. The catalyst with higher specific copper surface area and component dispersion shows higher activity for methanol conversion at lower temperature. The best Cu/ZrO2 catalyst has been prepared by an oxalate gel–coprecipitation method, which shows much higher catalytic activity and enhanced long-term stability in the SRM reaction as compared to the catalysts prepared by conventional aqueous–coprecipitation and impregnation methods.

Keywords
Hydrogen production; Steam reforming of methanol; Binary Cu/ZrO2 catalysts; Oxalate gel–coprecipitation
First Page Preview
Effect of preparation method on the hydrogen production from methanol steam reforming over binary Cu/ZrO2 catalysts
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 297, Issue 2, 6 January 2006, Pages 151–158
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis