Self-sustained combustion of carbon monoxide promoted by the Cu-Ce/ZSM-5 catalyst in CO/O-2/N-2 atmosphere

doi:10.1016/j.apcatb.2014.07.007

	Self-sustained combustion of carbon monoxide promoted by the Cu-Ce/ZSM-5 catalyst in CO/O-2/N-2 atmosphere
	Bin F(宾峰); Wei XL(魏小林); Li B(李博); Hui KS; Bin, F (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100080, Peoples R China.
发表期刊	Applied Catalysis B-Environmental
	2015-02
卷号	162 页码:282-288
ISSN	0926-3373
摘要	The Cu/ZSM-5, Ce/ZSM-5 and Cu-Ce/ZSM-5 catalysts were prepared and characterized in this investigation and the catalytic activity of carbon monoxide (CO) combustion under these catalysts was determined by temperature-programmed oxidation. The activity for the CO combustion follows the decreasing order: Cu-Ce/ZSM-5 > Cu/ZSM-5 >Ce/ZSM-5, indicated by lower ignition, light-off, extinction temperature and broader hysteresis determined via both heating and cooling feeding process. The CO adsorbed on the copper sites to form Cu+-CO complexes, monodentate and bidentate carbonates was considered to be the crucial step for CO catalytic combustion. At the CO concentration >= 5 vol.%, the CO self-sustained combustion was achieved over the Cu-Ce/ZSM-5 catalyst. One reason is due to formation of Cu2+ ions incorporated into cerium oxides, which are more reducible than the copper clusters, minicrystals and bulk CuO particles. Another reason is attributable to the formation of Ce4+/Ce3+ redox couple, which facilitates oxygen transport on the catalyst surface. (C) 2014 Elsevier B.V. All rights reserved.
关键词	Carbon Monoxide Self-sustained Combustion Cu-ce/zsm-5 Catalytic Activity
学科领域	Chemistry ; Engineering
DOI	10.1016/j.apcatb.2014.07.007
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000343686900034
关键词[WOS]	MIXED OXIDES ; OXIDATION ; CO ; REDUCTION ; METHANOL ; DECOMPOSITION ; ZIRCONIUM ; IGNITION ; SOOT ; NO
WOS研究方向	Chemistry ; Engineering
WOS类目	Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
项目资助者	This work is financially supported by the National Natural Science Found of China (No. 51206119, 91130028). The work is also supported by State Key Laboratory of Engines, Tianjin University (K2014-8).
课题组名称	LHD高效洁净燃烧(CPCR)
论文分区	一类
引用统计	被引频次：72[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/49396
专题	高温气体动力学国家重点实验室
通讯作者	Bin, F (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100080, Peoples R China.
推荐引用方式 GB/T 7714	Bin F,Wei XL,Li B,et al. Self-sustained combustion of carbon monoxide promoted by the Cu-Ce/ZSM-5 catalyst in CO/O-2/N-2 atmosphere[J]. Applied Catalysis B-Environmental,2015,162:282-288.
APA	Bin F,Wei XL,Li B,Hui KS,&Bin, F .(2015).Self-sustained combustion of carbon monoxide promoted by the Cu-Ce/ZSM-5 catalyst in CO/O-2/N-2 atmosphere.Applied Catalysis B-Environmental,162,282-288.
MLA	Bin F,et al."Self-sustained combustion of carbon monoxide promoted by the Cu-Ce/ZSM-5 catalyst in CO/O-2/N-2 atmosphere".Applied Catalysis B-Environmental 162(2015):282-288.

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