文献类型：期刊文献

英文题名：Properties of CeO₂-ZrO₂ Solid Solution Supported on Si-Modified Alumina and Its Application in Pd Catalyst for Methane Combustion

作者：Wang Xiaohong[1,2];Lu Guanzhong[1];Guo Yun[1];Qiao Dongsheng[1];Zhang Zhigang[1];Guo Yanglong[1];Li Chunzhong[2]

机构：[1]E China Univ Chem Technol, Res Inst Ind Catalysis, Adv Mat Lab, Shanghai 200237, Peoples R China;[2]E China Univ Chem Technol, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China

年份：2008

卷号：29

期号：10

起止页码：1043

外文期刊名：CHINESE JOURNAL OF CATALYSIS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000261011000018)】；

语种：英文

外文关键词：supported ceria-zirconia solid solution; silicon-modified alumina; palladium catalyst; catalytic activity; methane combustion

摘要：CeO2-ZrO2 solid solution was supported on Si-modified alumina (Ce-Zr-O/Si-Al2O3) by the reverse microemulsion method. Its structure, thermal stability, and oxygen release capacity were studied by N-2 adsorption, XRD, TPR, Raman spectroscopy, and XPS. The crystalline phase of Ce-Zr-O on Si-Al2O3 was the same as that of unsupported CeO2-ZrO2 (Ce-Zr-O), but its thermal stability, oxygen release capacity at low temperature, and total oxygen storage capacity were higher. As the support of a Pd catalyst for methane combustion, Ce-Zr-O/Si-Al2O3 had better properties, than Ce-Zr-O, Si-Al2O3, and the mixture of Ce-Zr-O + Si-Al2O3. Using the 0.2%Pd/10%Ce-Zr-O/Si-Al2O3 catalyst, T-90 for methane combustion was only 345 degrees C, which was 175 degrees C lower than that of Pd supported on other supports.