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Effect of Novel Supporter on Catalytic Combustion of Methane
作者姓名:陈敏  范利萍  郑小明
作者单位:Department of Chemistry, Xixi Campus of Zhejiang University, Hangzhou 310028, China
摘    要:A new catalyst support, Ce-Mg-O, was prepared in a novel way macromolecule surfactant modified method and was used as a catalyst support for low-temperature methane combustion. The results indicate that the new type of FeOx/Ce- Mg-O catalyst exhibits high activity in low-temperature methane combustion, such that the T90 at which 90% conversion of methane occurs can be obtained at 560 ℃. The structure of the catalyst and the effect of the supporter on catalytic activity were characterized by transmission electronic microscopy (TEM), X-ray diffraction (XRD), and temperature-programmed reduction (TPR). The results indicate that the high catalytic activity of FeOx/Ce-Mg-O over methane combustion is strongly dependent on the particle size, typical crystal phase of the Ce-Mg-O, and the interaction of FeOx and Ce-Mg-O.

关 键 词:Ce-Mg-O  载体  甲烷  催化燃烧  稀土
文章编号:1002-0721(2006)04-0447-04
收稿时间:2005-07-25
修稿时间:2005-10-20

Effect of Novel Supporter on Catalytic Combustion of Methane
Min , Liping Fan,Xiaoming Zheng.Effect of Novel Supporter on Catalytic Combustion of Methane[J].Journal of Rare Earths,2006,24(4):447-450.
Authors:Min  Liping Fan  Xiaoming Zheng
Affiliation:aDepartment of Chemistry, Xixi Campus of Zhejiang University, Hangzhou 310028, China
Abstract:A new catalyst support, Ce-Mg-O, was prepared in a novel way macromolecule surfactant modified method and was used as a catalyst support for low-temperature methane combustion. The results indicate that the new type of FeOx/Ce-Mg-O catalyst exhibits high activity in low-temperature methane combustion, such that the T90 at which 90% conversion of methane occurs can be obtained at 560 ℃. The structure of the catalyst and the effect of the supporter on catalytic activity were characterized by transmission electronic microscopy (TEM), X-ray diffraction (XRD), and temperature-programmed reduction (TPR). The results indicate that the high catalytic activity of FeOx/Ce-Mg-O over methane combustion is strongly dependent on the particle size, typical crystal phase of the Ce-Mg-O, and the interaction of FeOx and Ce-Mg-O.
Keywords:Ce-Mg-O  supporter  catalyst  methane combustion  rare earths
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