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题名: On the correlation between microstructural changes of Ag-H-ZSM-5 catalysts and their catalytic performances in the selective catalytic reduction of NOx by methane
作者: Shi, C;  Cheng, MJ;  Qu, ZP;  Bao, XH
通讯作者: 包信和
关键词: Ag-H-ZSM-5 catalyst ;  selective catalytic reductions ;  NOx
刊名: JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
发表日期: 2005-07-01
DOI: 10.1016/j.molcata.2004.10.045
卷: 235, 期:1-2, 页:35-43
收录类别: SCI
文章类型: Article
部门归属: 5
项目归属: 502
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: The silver catalyzed, selective catalytic reduction (SCR) of nitrogen oxides (NOx) by CH4, is shown to be a structure-sensitive reaction. Pretreatment has a great affect on the catalytic performances. Upon thermal treatment in inert gas stream, thermal induced changes in silver morphology lead to the formation of reduced silver species of clusters and particles. Catalysis over this catalyst indicates an initially higher activity but lower selectivity for the CH4-SCR of NOx Reaction induced restructuring of silver results in the formation of ill-defined silver oxides. This, in turn, impacts the adsorption properties and diffusivity of oxygen over silver catalyst, results in the decrease in activity but increase in selectivity of Ag-H-ZSM-5 catalyst for the CH4-SCR of NO.. (c) 2004 Elsevier B.V. All rights reserved.
关键词[WOS]: SILVER-ALUMINA CATALYSTS ;  SUPPORTED AG CATALYSTS ;  ZEOLITE-Y ;  OPTICAL SPECTROSCOPY ;  SUBSURFACE OXYGEN ;  CLUSTERS ;  OXIDATION ;  C3H6 ;  HYDROCARBONS ;  DIMERIZATION
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000230297800005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/93117
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Dalian Univ Technol, Lab Plasma Phys Chem, Dalian 116024, Peoples R China

Recommended Citation:
Shi, C,Cheng, MJ,Qu, ZP,et al. On the correlation between microstructural changes of Ag-H-ZSM-5 catalysts and their catalytic performances in the selective catalytic reduction of NOx by methane[J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL,2005,235(1-2):35-43.
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