文献类型：期刊文献

中文题名：Effect of water vapor on the CO and CH_4 catalytic oxidation over CeO_2-MO_x (M=Cu, Mn, Fe, Co, and Ni) mixed oxide

英文题名：Effect of water vapor on the CO and CH4 catalytic oxidation over CeO2-MOx (M=Cu, Mn, Fe, Co, and Ni) mixed oxide

作者：Qiao, Dongsheng[1]; Lu, Guanzhong[1]; Guo, Yun[1]; Wang, Yanqin[1]; Guo, Yanglong[1]

机构：[1] Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai 200237, China

年份：2010

卷号：28

期号：5

起止页码：742

中文期刊名：Journal of Rare Earths

外文期刊名：Journal of Rare Earths

收录：CSTPCD;;EI(收录号：20104513363611);Scopus;CSCD:【CSCD2011_2012】；

基金：Project supported by the National Basic Research Program of China (2010CB732300);the National Key Technologies R&D Program of China (2007BAJ03B01);the National Natural Science Foundation of China (20601008)

语种：英文

中文关键词：CeO2-MOx solid solution; catalytic oxidation; methane combustion; CO oxidation; effect of water vapor; rare earths;

外文关键词：Copper oxides - Water vapor - Combustion - Rare earths - Nickel oxide - Cerium oxide - Catalyst activity

摘要：CeO2-MOx (M=Cu, Mn, Fe, Co, and Ni) mixed oxide catalysts were prepared by a citric acid complexation-combustion method. CeO2-MOx solid solutions could be formed with M cations doping into CeO2 lattice, while NiO and Co3O4 phases were detected on the surface of CeO2-NiO and CeO2-Co3O4 by Raman spectroscopy. The presence of M in CeO2 could obviously promote its catalytic activity for CH4 catalytic combustion and CO oxidation. Among the prepared samples, CeO2-CuO exhibited the best performance for CO oxidatio...
CeO2-MOx (M=Cu, Mn, Fe, Co, and Ni) mixed oxide catalysts were prepared by a citric acid complexation-combustion method. CeO2-MOx solid solutions could be formed with M cations doping into CeO2 lattice, while NiO and Co3O4 phases were detected on the surface of CeO2-NiO and CeO 2-Co3O4 by Raman spectroscopy. The presence of M in CeO2 could obviously promote its catalytic activity for CH 4 catalytic combustion and CO oxidation. Among the prepared samples, CeO2-CuO exhibited the best performance for CO oxidation. The addition of water vapor could obviously inhibit the catalytic performance of CeO2-MOx for CH4 combustion and CO oxidation, and CeO2- NiO showed good durability for CH4 wet combustion, that is, T50 was 528 °C when 20 water vapor was added in the reaction stream. ? 2010 The Chinese Society of Rare Earths.