Pd/Ce1-xZrxO2/SBA-15 catalysts: preparation and catalytic properties for methane combustion
A series of Pd/SBA-15 and Pd/Ce1-xZrxO2/SBA-15 (x=0, 0.5, 1) catalysts with different Pd loadings were prepared by the impregnation method. The catalysts were characterized using XRD and TPR techniques. The catalytic performance for the catalytic combustion of methane was investigated. The results showed that both Pd/SBA-15 and Pd/Ce1-xZrxO2/SBA-15 catalysts exhibited an excellent catalytic activity in methane combustion. In the Pd/Ce1-xZrxO2/SBA-15 catalysts, the activity increased with increasing of Zr content. After incorporation of Pd and Ce1-xZrxO2 in the SBA-15 support, all catalysts still possessed ordered hexagonal mesoporous structures. There were the stronger interaction among the Pd and the Ce1-xZrxO2 and the SBA-15 support. The interaction could significantly modify the redox performance and affect the catalytic activity of the catalysts.
Fengxiang Yin Shengfu Ji Fuzheng Zhao Zhongliang Zhou Jiqin Zhu Chengyue Li
State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 15 Beisanhuan Dong Road, P.O.Box 35, Beijing, 100029
国际会议
北京
英文
2007-08-12（万方平台首次上网日期，不代表论文的发表时间）