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题名: Adsorption and reaction of CO and O-2 on the Ag/Pt(110) surface studied by photoemission electron microscopy
作者: Huang, WX;  Bao, XH
关键词: silver ;  Pt(110) ;  carbon monoxide ;  oxygen ;  adsorption ;  reaction ;  photoemission electron microscopy
刊名: CHINESE SCIENCE BULLETIN
发表日期: 2001-06-01
卷: 46, 期:12, 页:998-1002
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Multidisciplinary Sciences
研究领域[WOS]: Science & Technology - Other Topics
英文摘要: The Ag/Pt(110) model catalyst was prepared by evaporating silver on Pt(110). Adsorption and reaction of CO and O-2 on Ag/Pt(110) surface were studied in situ by photoemission electron microscopy (PEEM) during the pressure range of 10(-5)-10(-2) Pa at 480 K. The Ag/Pt(110) surface consisted of Pt(110), AgPt interface and Ag area after annealing at 500 K. The dosing pressure of CO and O-2 had a larger influence on their adsorption on the Ag area than on the Pt(110) and AgPt Interface. Small Pt clusters formed on the Ag area and AgPt interface, which had a stronger ability to adsorb CO than Pt(110) terrace. The existence of Ag had an obvious influence on the kinetic of CO oxidation on Pt(110). No pattern was observed on the AgPt interface under the same condition when the formation of reaction-diffusion waves occurred on Pt(110).
语种: 英语
WOS记录号: WOS:000170193900007
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138972
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:
Huang, WX,Bao, XH. Adsorption and reaction of CO and O-2 on the Ag/Pt(110) surface studied by photoemission electron microscopy[J]. CHINESE SCIENCE BULLETIN,2001,46(12):998-1002.
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