Characterization and CO Catalytic Oxidation of CuO/Ce-Zr-La-O Catalyst
来源期刊：JOURNAL OF RARE EARTHS2003年第3期
论文作者：罗孟飞 钟依均 林瑞
Key words：catalytic chemistry; sol-gel method; CuO/Ce-Zr-La-O catalyst; CO oxidation activity; rare earths;
Abstract: The Ce-Zr-La-O solid solution was prepared by the sol-gel method. The structure and the redox behavior of Ce-Zr-La-O solid solution and CuO/Ce-Zr-La-O catalysts were investigated by using XRD, Raman and TPR techniques. The result shows that the reduction capability of Ce0.7Zr0.3-yLayO solid solution is related to content of La. Appropriate content of La can enhance the redox capability of the solid solution. The oxidation activity of the CuO(6%)/Ce0.7Zr0.15La0.15O catalyst is the highest. CuO, which finely dispersed and interacted with the support, is the site of oxidation activity.
罗孟飞1，钟依均1，林瑞2
(1.Institute of Physical Chemistry, Zhejiang Normal niversity, Jinhua 321004,China;
2.Institute of Physical Chemistry, Zhejiang Normal niversity, Jinhua 321004, China;
3.Institute of Environmental Science, Zhejiang University, Hangzhou 310027,China)
Abstract:The Ce-Zr-La-O solid solution was prepared by the sol-gel method. The structure and the redox behavior of Ce-Zr-La-O solid solution and CuO/Ce-Zr-La-O catalysts were investigated by using XRD, Raman and TPR techniques. The result shows that the reduction capability of Ce0.7Zr0.3-yLayO solid solution is related to content of La. Appropriate content of La can enhance the redox capability of the solid solution. The oxidation activity of the CuO(6%)/Ce0.7Zr0.15La0.15O catalyst is the highest. CuO, which finely dispersed and interacted with the support, is the site of oxidation activity.
Key words:catalytic chemistry; sol-gel method; CuO/Ce-Zr-La-O catalyst; CO oxidation activity; rare earths;
【全文内容正在添加中】
