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题名: Experimental observation of quantum oscillation of surface chemical reactivities
作者: Ma, Xucun;  Jiang, Peng;  Qi, Yun;  Jia, Jinfeng;  Yang, Yu;  Duan, Wenhui;  Li, Wei-Xue;  Bao, Xinhe;  Zhang, S. B.;  Xue, Qi-Kun
通讯作者: Qi-Kun Xue
关键词: Pb(111) ;  quantum size effects ;  scanning tunneling microscopy ;  surface reactivity
刊名: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
发表日期: 2007-05-29
DOI: 10.1073/pnas.0611024104
卷: 104, 期:22, 页:9204-9208
收录类别: SCI
文章类型: Article
部门归属: 5
项目归属: 507,502
产权排名: 3;6
WOS标题词: Science & Technology
类目[WOS]: Multidisciplinary Sciences
研究领域[WOS]: Science & Technology - Other Topics
英文摘要: Here we present direct observation of a quantum reactivity with respect to the amounts of O(2) adsorbed and the rates of surface oxidation as a function of film thickness on ultrathin (2-6 nm) Pb mesas by scanning tunneling microscopy. Simultaneous spectroscopic measurements on the electronic structures reveal a quantum oscillation that originates from quantum well states of the mesas, as a generalization of the Fabry-Perot modes of confined electron waves. We expect the quantum reactivity to be a general phenomenon for most ultrathin metal films with broad implications, such as nanostructure tuning of surface reactivities and rational design of heterogeneous catalysts.
关键词[WOS]: GENERALIZED GRADIENT APPROXIMATION ;  METAL-SURFACES ;  CHEMISORPTION ;  OXIDATION ;  STATES ;  PB
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000246935700023
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/99241
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 100080, Peoples R China
2.Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
4.Natl Renewable Energy Lab, Golden, CO 80401 USA

Recommended Citation:
Ma, Xucun,Jiang, Peng,Qi, Yun,et al. Experimental observation of quantum oscillation of surface chemical reactivities[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2007,104(22):9204-9208.
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