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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.
Source PublicationApplied Catalysis B-Environmental
2015-02
Volume162Pages:282-288
ISSN0926-3373
AbstractThe 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.
KeywordCarbon Monoxide Self-sustained Combustion Cu-ce/zsm-5 Catalytic Activity
Subject AreaChemistry ; Engineering
DOI10.1016/j.apcatb.2014.07.007
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000343686900034
WOS KeywordMIXED OXIDES ; OXIDATION ; CO ; REDUCTION ; METHANOL ; DECOMPOSITION ; ZIRCONIUM ; IGNITION ; SOOT ; NO
WOS Research AreaChemistry ; Engineering
WOS SubjectChemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
Funding OrganizationThis 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).
DepartmentLHD高效洁净燃烧(CPCR)
Classification一类
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/49397
Collection高温气体动力学国家重点实验室
Corresponding AuthorBin, F (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100080, Peoples R China.
Recommended Citation
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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