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：Xiaohong, WANG[1,2]; Guanzhong, LU[1]; Yun, GUO[1]; Dongsheng, QIAO[1]; Zhigang, ZHANG[1]; Yanglong, GUO[1]; Chunzhong, LI[2]

机构：[1] Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai, 200237, China; [2] Key Laboratory for Ultrafine Materials, Ministry of Education, East China University of Science and Technology, Shanghai, 200237, 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：EI(收录号：20084811739771)

语种：英文

外文关键词：Methane - Temperature - Thermodynamic stability - Oxygen - Combustion - Zirconia - Solid solutions - Alumina - Cerium oxide - Microemulsions - Palladium - Catalyst supports - Aluminum oxide - Silicon

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 N2 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 re-lease 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, T90 for methane combustion was only 345C, which was 175C lower than that of Pd supported on other supports. ? 2008 Dalian Institute of Chemical Physics, the Chinese Academy of Sciences.