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题名: Multiple coordination of CO on molybdenum nanoparticles: Evidence for intermediate Mo-x(CO)(y) species by XPS and UPS
作者: Jiang, Zhiquan;  Huang, Weixin;  Zhang, Zhen;  Zhao, Hong;  Tan, Dali;  Bao, Xinhe
刊名: JOURNAL OF PHYSICAL CHEMISTRY B
发表日期: 2006-12-28
DOI: 10.1021/jp065293i
卷: 110, 期:51, 页:26105-26113
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: CO chemisorption on the metallic molybdenum nanoparticles supported on the thin alumina film was investigated by X-ray photoelectron spectroscopy (XPS) and ultraviolet photoelectron spectroscopy (UPS). A binary compound of molybdenum and CO is found to be formed on the surface upon CO dose, accompanied with a positive binding energy shift of the Mo 3d doublet and a localized Mo 4d valence band. A loose packing of the metallic molybdenum favors the formation of this intermediate Mo-x(CO)(y) species. The formation of the Mo-x(CO)(y) species implies that the property of the metallic molybdenum nanoparticles on the thin alumina film is much different from that of the bulk molybdenum, indicating a significant nanometer size effect.
关键词[WOS]: INDUCED STRUCTURAL-CHANGES ;  ELECTRONIC-STRUCTURE ;  METAL PARTICLES ;  DISSOCIATIVE CHEMISORPTION ;  MO(CO)(6) PRECURSOR ;  RH/AL2O3 CATALYST ;  MODEL CATALYSTS ;  CARBON-MONOXIDE ;  OXIDE SUPPORTS ;  TIME-SCALE
语种: 英语
WOS记录号: WOS:000242974300082
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140342
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.Univ Sci & Technol China, Dept Chem Phys, Hefei 230026, Peoples R China

Recommended Citation:
Jiang, Zhiquan,Huang, Weixin,Zhang, Zhen,et al. Multiple coordination of CO on molybdenum nanoparticles: Evidence for intermediate Mo-x(CO)(y) species by XPS and UPS[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2006,110(51):26105-26113.
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