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题名: HREELS study on coadsorption of oxygen and cyclohexanone on the Pt(111) surface
作者: Wang, YS;  Wei, XM;  Ren, SZ;  Zhai, RS;  Zhao, YK;  Wang, XF;  Zhuang, SX
关键词: cyclohexanone ;  coadsorption ;  Pt(111) surface ;  HREELS
刊名: CHINESE SCIENCE BULLETIN
发表日期: 1998-08-01
卷: 43, 期:15, 页:1276-1280
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 coadsorption of cyclohexanone and oxygen on Pt(lll) has been investigated by HREELS and TDS. At 205 K the presence of oxygen induces an "extra" red-shift of the C = O stretching of coadsorbed cyclohexanone. Heating this coadsorbed surface from 205 to 250 K leads to further dehydrogenation to form intermediate species and to complete disappearance of the C = O stretching band. Above 300 K, the molecule rings of dehydrogenation species cleave to form hydrocarbon fragments and CO molecules which directly desorb into the vacuum or react with preadsorbed oxygen to produce CO2 which leave the surface immediately. TDS results provide further evidence that the preadsorbed oxygen promotes the decomposition of cyclohexanone.
语种: 英语
WOS记录号: WOS:000076341800008
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138502
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 230026, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Wang, YS,Wei, XM,Ren, SZ,et al. HREELS study on coadsorption of oxygen and cyclohexanone on the Pt(111) surface[J]. CHINESE SCIENCE BULLETIN,1998,43(15):1276-1280.
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