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Acta Phys. -Chim. Sin.  2011, Vol. 27 Issue (05): 1163-1168    DOI: 10.3866/PKU.WHXB20110443
CATALYSIS AND SURFACE SCIENCE     
Preparation of CuO-Ce0.6Zr0.4O2 by Microwave Heating Decomposition and Its Catalytic Property for CO Oxidation
YANG Zhi-Qiang, MAO Dong-Sen, WU Ren-Chun, YU Jun, WANG Qian
School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 200235, P. R. China
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Abstract  

A series of CuO-Ce0.6Zr0.4O2 catalysts with different contents (0-25%, w) of CuO were prepared by microwave heating decomposition and characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), N2 adsorption-desorption (BET), and temperature-programmed reduction with hydrogen (H2-TPR). The activities of the catalysts for CO oxidation were evaluated using a microreactor-gas chromatograph system. The results show that the CuO-Ce0.6Zr0.4O2 catalyst exhibits the best catalytic activity for CO oxidation at a CuO content of 15%. Three copper species are present in the catalysts, i.e., highly dispersed, small and large CuO particles. The highly dispersed and small CuO particles are responsible for the promotion of catalytic activity while the large CuO particles inhibit catalytic activity.



Key wordsMicrowave heating      Cu(NH3)4(OH)2      CuO-Ce0.6Zr0.4O2 catalyst      CO oxidation     
Received: 22 December 2010      Published: 22 March 2011
MSC2000:  O643  
Fund:  

The project was supported by the Leading Academic Discipline Project of Shanghai Education Committee, China (J51503).

Corresponding Authors: MAO Dong-Sen     E-mail: dsmao@sit.edu.cn, dsmao1106@yahoo.com.cn
Cite this article:

YANG Zhi-Qiang, MAO Dong-Sen, WU Ren-Chun, YU Jun, WANG Qian. Preparation of CuO-Ce0.6Zr0.4O2 by Microwave Heating Decomposition and Its Catalytic Property for CO Oxidation. Acta Phys. -Chim. Sin., 2011, 27(05): 1163-1168.

URL:

http://www.whxb.pku.edu.cn/10.3866/PKU.WHXB20110443     OR     http://www.whxb.pku.edu.cn/Y2011/V27/I05/1163

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