CuO/CeO2 Catalysts for Selective Oxidation of Carbon Monoxide in Excess Hydrogen
来源期刊：JOURNAL OF RARE EARTHS2004年第6期
论文作者：张菊香 史鹏飞 刘春涛
Key words：hydrogen-rich gas; CO selective oxidation; CuO; CeO2; rare earths;
Abstract: CuO/CeO2 catalysts were prepared by a coprecipitation method and tested for CO removal from reformed fuels via selective oxidation. The influence of the calcination temperature on the chemical compositions and catalytic performance of CuO/CeO2 catalysts were studied. It was found that CuO/CeO2 catalysts exhibit excellent CO oxidation activity and selectivity,and the complete removal of CO is attained when the catalysts are calcined at appropriate temperatures. XRD, TPR and XPS results indicate that CuO/CeO2 catalysts exhibit higher catalytic performance in CO selective oxidation due to the strong interaction between copper oxide and cerium dioxide, which promotes the dispersion and hydrogen reduction activity of copper.
张菊香1，史鹏飞1，刘春涛1
(1.Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, China)
Abstract:CuO/CeO2 catalysts were prepared by a coprecipitation method and tested for CO removal from reformed fuels via selective oxidation. The influence of the calcination temperature on the chemical compositions and catalytic performance of CuO/CeO2 catalysts were studied. It was found that CuO/CeO2 catalysts exhibit excellent CO oxidation activity and selectivity,and the complete removal of CO is attained when the catalysts are calcined at appropriate temperatures. XRD, TPR and XPS results indicate that CuO/CeO2 catalysts exhibit higher catalytic performance in CO selective oxidation due to the strong interaction between copper oxide and cerium dioxide, which promotes the dispersion and hydrogen reduction activity of copper.
Key words:hydrogen-rich gas; CO selective oxidation; CuO; CeO2; rare earths;
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