Copper Promoted Au/ZnO-CuO Catalysts for Low Temperature Water-gas Shift Reaction

Chemical Research in Chinese Universities ›› 2006, Vol. 22 ›› Issue (1): 99-102.

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Copper Promoted Au/ZnO-CuO Catalysts for Low Temperature Water-gas Shift Reaction

LAN Hong-lei^1,2, JIA Ming-jun¹, PAN Wei-cheng¹, ZHANG Wen-xiang¹, JIANG Da-zhen¹

1. College of Chemistry, Jilin University, Changchun 130023, P. R. China;
2. School of Chemical Engineering, Zhengzhou University, Zhengzhou 450002, P. R. China

Received:2005-02-04 Online:2006-02-24 Published:2011-08-06
Supported by:
Supported by the National Natural Science Foundation of China(No. 20073015) and the Key Project Foundation of Ministry of Education of China(No. 1A301123).

Abstract

Abstract: Various copper promoted Au/ZnO-CuO catalysts with different atomic ratios of Cu to Zn prepared by means of co-precipitation were tested for the low temperature water-gas shift(WGS) reaction. The catalytic activity of the catalyst depends largely on the ratio of Cu to Zn. The addition of an appropriate amount of copper can considerably improve both the catalytic activity and the stability of the catalyst in comparison with those of copper-free Au/ZnO catalysts. The enhanced reducibility of copper oxide in the Au/ZnO-CuO ternary-component catalysts, which was confirmed by H₂-TPR, may be related to the high activity and stability of the catalyst for the low temperature WGS reaction.

Key words: Water-gas shift reaction, ZnO, CuO, Gold

LAN Hong-lei, JIA Ming-jun, PAN Wei-cheng, ZHANG Wen-xiang, JIANG Da-zhen. Copper Promoted Au/ZnO-CuO Catalysts for Low Temperature Water-gas Shift Reaction[J]. Chemical Research in Chinese Universities, 2006, 22(1): 99-102.

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Copper Promoted Au/ZnO-CuO Catalysts for Low Temperature Water-gas Shift Reaction

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