Low temperature CO oxidation on Ni-promoted CuO-CeO2 catalysts

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	Low temperature CO oxidation on Ni-promoted CuO-CeO2 catalysts
	Chen Guoxing ; Li Qiaoling ; Wei Yucai ; Fang Weiping ; Yang Yiquan ; Li QL(李巧灵) ; Fang WP(方维平) ; Yang YQ(杨意泉)
刊名	http://dx.doi.org/10.1016/S1872-2067(11)60468-3
	2013
关键词	CARBON-MONOXIDE OXIDATION HIGH-ENERGY DIFFRACTION OXIDE CATALYST SELECTIVE OXIDATION PREFERENTIAL OXIDATION REDOX PROPERTIES SOLID-SOLUTIONS NANOSIZED CEO2 X-RAY CU
英文摘要	China Tobacco Fujian Industrial Corporation; A series of Ce20Cu5NiyOx catalysts for CO oxidation at low temperature were prepared and characterized by N-2 adsorption, X-ray diffraction, temperature-program reduction by H-2, X-ray photoelectron spectroscopy (XPS), and Raman spectroscopy. Ce20Cu5Ni0.4Ox exhibited the highest catalytic activity. The addition of NiO increased the amount of copper ions doped into the CeO2 matrix and gave more oxygen vacancies in ceria by the formation of a Ni-O-Ce solid solution. XPS results showed that large quantities of Cu+, Ce3+, and lattice oxygen existed in the fresh Ce20Cu5Ni0.4Ox catalyst. Cu+ ions in the catalyst can easily migrate to the ceria lattice to form a Cu-O-Ce solid solution, which enhanced the release of the lattice oxygen of the oxides under a reducing atmosphere. The high catalytic activity of Ce20Cu5Ni0.4Ox is due to the promoter giving increased amounts of Cu+ in the catalyst and the formation of solid solutions of both Cu-O-Ce and Ni-O-Ce. (C) 2013, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
语种	英语
出版者	SCIENCE PRESS
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/88668]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Chen Guoxing,Li Qiaoling,Wei Yucai,et al. Low temperature CO oxidation on Ni-promoted CuO-CeO2 catalysts[J]. http://dx.doi.org/10.1016/S1872-2067(11)60468-3,2013.
APA	Chen Guoxing.,Li Qiaoling.,Wei Yucai.,Fang Weiping.,Yang Yiquan.,...&杨意泉.(2013).Low temperature CO oxidation on Ni-promoted CuO-CeO2 catalysts.http://dx.doi.org/10.1016/S1872-2067(11)60468-3.
MLA	Chen Guoxing,et al."Low temperature CO oxidation on Ni-promoted CuO-CeO2 catalysts".http://dx.doi.org/10.1016/S1872-2067(11)60468-3 (2013).