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题名: Hydrogen treatment-induced surface reconstruction: Formation of superoxide species on activated carbon over Ag/activated carbon catalysts for selective oxidation of CO in H-2-rich gases
作者: Chen, Limin;  Ma, Ding;  Bao, Xinhe
刊名: JOURNAL OF PHYSICAL CHEMISTRY C
发表日期: 2007-02-08
DOI: 10.1021/jp0665628
卷: 111, 期:5, 页:2229-2234
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science
英文摘要: Superoxide species were detected on activated carbon (AC) after H-2 treatment at high temperatures (> 300 degrees C) and subsequent oxygen adsorption at 80 degrees C. The introduction of Ag onto the carbon surface promoted the formation of superoxide species. For Ag/AC catalysts, the superoxide species may be able to spill over from the carbon surface to the silver particles and react with CO under reaction conditions; while over AC itself, superoxide species have no activity toward CO oxidation. This is another active oxygen species for CO oxidation over carbon-supported silver catalysts.
关键词[WOS]: FUEL-CELL APPLICATIONS ;  MOLECULAR-OXYGEN ;  SILVER CATALYSTS ;  PERFORMANCE ;  AG(110) ;  ENHANCEMENT ;  EPOXIDATION ;  MICROSCOPY ;  KINETICS ;  SUPPORT
语种: 英语
WOS记录号: WOS:000245005600057
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140657
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

Recommended Citation:
Chen, Limin,Ma, Ding,Bao, Xinhe. Hydrogen treatment-induced surface reconstruction: Formation of superoxide species on activated carbon over Ag/activated carbon catalysts for selective oxidation of CO in H-2-rich gases[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2007,111(5):2229-2234.
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