Effect of the Performance of Cu/γ-Al2O3Catalyst with the Addition of Ag

Chem. J. Chinese Universities ›› 1995, Vol. 16 ›› Issue (12): 1921.

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Effect of the Performance of Cu/γ-Al₂O₃Catalyst with the Addition of Ag

ZHU Bo¹, LUO Meng-Fei¹, ZHONG Yi-Fen¹, LI Bin-Feng¹, YUAN Xian-Xin¹, CHEN Ping², WU Hong-Li³

1. Institute of Catalysis, Hangzhou University, Hangzhou, 310028;
2. Department of Chemistry, Hangzhou University;
3. Central Laboratory, Hangzhou Univeristy

Received:1994-12-26 Revised:1995-03-23 Online:1995-12-24 Published:1995-12-24

Abstract

Abstract: The BET, XRD, TPRtechniques and the measurement of catalytic activity for benzene and acetone oxidation were used to study the reducibility and activity of Cu/γ-Al₂O₃, Cu-Ag/γ-Al₂O₃catalysts.It is found that different TPRprofiles are produced with different metal contents, and different copper species are present on the surface of catalysts.With addition of Ag, there is an obvious displacement between the TPRprofiles of γ-Al₂O₃-supported Cu-Ag and Cu catalysts, and the activity of catalyst for benzene and acetone oxidation is enhanced. The results showed that the forms of copper species,the reducibility and the catalytic activity of catalysts are affected by the variation of treatment temperature.The addition of Ag, to some extent, can improve the thermal stability of catalyst.

Key words: Cu/γ-Al₂O₃catalyst, Addition of Ag, Reducibility, Oxidation activity

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ZHU Bo, LUO Meng-Fei, ZHONG Yi-Fen, LI Bin-Feng, YUAN Xian-Xin, CHEN Ping, WU Hong-Li. Effect of the Performance of Cu/γ-Al₂O₃Catalyst with the Addition of Ag[J]. Chem. J. Chinese Universities, 1995, 16(12): 1921.

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Effect of the Performance of Cu/γ-Al₂O₃Catalyst with the Addition of Ag

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