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环境科学学报 2010
Catalytic combustion performance of soot over cerium-based transition metal composite oxide catalysts
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Abstract:
Transition metal (Fe,V,Mn,Co and Cu)/Ce composite oxide catalysts were prepared by co-precipitation. The catalytic activity of the catalysts for soot combustion was determined by thermogravimetry (TG). The results show that the added transition metal greatly enhances the catalytic reactivity of ceria. Among the catalysts,the iron-cerium composite oxide exhibits the most activity. Catalysts were investigated by techniques such as temperature-programmed reduction (H2-TPR),BET surface area,X-ray diffraction (X...