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题名: Adsorption and reaction of CO on the slightly oxidized Mo(100) surface
作者: Zhu, JF;  Guo, JC;  Zhai, RS;  Bao, XH;  Zhuang, SX
关键词: Mo(100) ;  HREELS ;  TDS ;  CO ;  adsorption ;  desorption
刊名: CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
发表日期: 2000-04-01
卷: 21, 期:4, 页:601-604
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: The adsorption and desorption of CO on the slightly oxidized Mo(100) surface at 120 K were studied by HREELS and TDS, It was found that three CO molecular states existed on the slightly oxidized Mo(100) surface at 120 K, namely CO terminally bonded on a top sites (<(nu)over tilde>(CO) = 2 016-2 050 cm(-1)), bonded in four-fold hollow sites with a tilted geometry (<(nu)over tilde> = 1 088 cm(-1)) and bonded in an inclined manner to a Mo atom through the carbon end and further coordinated to another Mo atom through a pi-CO bond (<(nu)over tilde>(CO) = 1 680 cm(-1)) respectively. For the terminally bonded CO, heating the surface induced the dissociation at lower coverage, At the higher coverage, however, heating the sample caused the dissociation occurring below 450 K and desorption (T-p = 319 K) simultaneously. For other two CO states, only dissociation could be detected during heating the surface. The chemisorbed carton and oxygen atoms produced from CO dissociation could be recombined to form CO to leave the surface at 928 and similar to 1 320 K.
关键词[WOS]: CARBON-MONOXIDE ;  DISSOCIATION ;  MO(110) ;  OXYGEN
语种: 英语
WOS记录号: WOS:000086574700026
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138701
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.Univ Sci & Technol China, Dept Chem Phys, Hefei 230029, Peoples R China
2.Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Zhu, JF,Guo, JC,Zhai, RS,et al. Adsorption and reaction of CO on the slightly oxidized Mo(100) surface[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2000,21(4):601-604.
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