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The role of copper species on Cu/[gamma]-Al2O3 catalysts for NH3-SCO reaction

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Authors
Liang, C.
Li, Xin Yong
Qu, Z.
Tade, Moses
Liu, Shaomin
Date
2012
Type
Journal Article

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Liang, C. and Li, X.Y. and Qu, Z. and Tade, M. and Liu, S. 2012. The role of copper species on Cu/[gamma]-Al2O3 catalysts for NH3-SCO reaction. Applied Surface Science. 258 (8): pp. 3738-3743.
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Applied Surface Science
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Department of Chemical Engineering
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Abstract

UV–vis spectra, XRD, H2-TPR, TEM and ESR were used to characterize a series of Cu/y-Al2O3 catalysts, which were prepared by incipient wetness impregnation using copper nitrate, copper acetate or copper sulfate as precursors, to study the role of Cu species on Cu/y-Al2O3 catalysts for NH3–SCO reaction. It was found that the mixture of CuO phase and CuAl2O4 phase formed on various Cu/y-Al2O3 catalysts, and the Cu species and dispersion had significant influence on the Cu/y-Al2O3 activity. Highly dispersed CuO phase on the support would be related with its high activity for the NH3–SCO reaction.