Liu Chuntao Shi PengfeiZhang Juxiang)(Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, China)
CuO/CeO_2 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/CeO_2 catalysts were studied. It was found that CuO/CeO_2 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/CeO_2 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.
hydrogen-rich gas; CO selective oxidation; CuO; CeO_2; rare earths
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