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题名: Initial growth and oxygen adsorption of silver on Al2O3 film
作者: Guo, Donghui;  Guo, Qinlin;  Zheng, Kefei;  Wang, E. G.;  Bao, Xinhe
通讯作者: Qinlin Guo
刊名: JOURNAL OF PHYSICAL CHEMISTRY C
发表日期: 2007-03-15
DOI: 10.1021/jp066842n
卷: 111, 期:10, 页:3981-3985
收录类别: SCI
文章类型: Article
部门归属: 5
项目归属: 502
产权排名: 2;5
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: The growth and oxygen adsorption of Ag on an ordered Al2O3 film, prepared on Mo(110) substrate, have been studied in situ under ultrahigh-vacuum condition using X-ray photoelectron spectroscopy, ultraviolet photoelectron spectroscopy, and low-energy electron diffraction. The results show that Ag particles/clusters are formed on alumina film at initial coverages, and the binding energy of the Ag 3d(5/2) line for Ag clusters is higher than that of bulk Ag, arisen from the size effect. Exposure of Ag clusters to similar to 10(-7) mbar O-2 leads the clusters to spreading over the substrate. It is of importance in many application areas to understand the origin of oxygen-induced metal-cluster changes in morphology and size.
关键词[WOS]: ENERGY-LOSS-SPECTROSCOPY ;  ELECTRONIC-STRUCTURE ;  METAL-CLUSTERS ;  SURFACE CHARACTERIZATION ;  INDUCED DISSOCIATION ;  SIZE DEPENDENCE ;  ETHYLENE-OXIDE ;  AG CATALYSTS ;  NOBLE-METAL ;  OXIDATION
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000245006100025
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/99217
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, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Guo, Donghui,Guo, Qinlin,Zheng, Kefei,et al. Initial growth and oxygen adsorption of silver on Al2O3 film[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2007,111(10):3981-3985.
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