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Characterization of the Excited State on Methanol/TiO2(110) Interface
Wang, Zhi-qiang1; Hao, Qun-qing1; Mao, Xin-chun1; Zhou, Chuan-yao1; Ma, Zhi-bo1; Ren, Ze-feng2,3,4; Dai, Dong-xu1; Yang, Xue-ming1
关键词Titanium Dioxide Excited States Two-photon Photoemission Time-resolved
刊名CHINESE JOURNAL OF CHEMICAL PHYSICS
2015-04-01
DOI10.1063/1674-0068/28/cjcp1412212
28期:2页:123-127
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Physics, Atomic, Molecular & Chemical
研究领域[WOS]Physics
关键词[WOS]SEMICONDUCTOR PHOTOCATALYSIS ; TITANIUM-DIOXIDE ; INVERSE-PHOTOEMISSION ; ELECTRON DYNAMICS ; TIO2(110) SURFACE ; WATER ; SPECTROSCOPY ; METHANOL ; TIO2
英文摘要The electronic structure of methanol/TiO2(110) interface has been studied by photoeraission spectroscopy. The pronounced resonance which appears at 5.5 eV above the Fermi level in two-photon photoemission spectroscopy (2PPE) is associated with the photocatalyzed dissociation of methanol at fivefold coordinated Ti sites (Ti-5c) on TiO2(110) surface [Chemical Science 1, 575 (2010)]. To check whether this resonance signal arises from initial or intermediate states, photon energy dependent 2PPE and comparison between one-photon photoemission spectroscopy and 2PPE have been performed. Both results consistently suggest the resonance signal originates from the initially unoccupied intermediate states, i.e., excited states. Dispersion measurements suggest the excited state is localized. Time-resolved studies show the lifetime of the excited state is 24 fs. This work presents comprehensive characterization of the excited states on methanol/TiO2(110) interface, and provides elaborate experimental data for the development of theoretical methods in reproducing the excited states on TiO2 surfaces and interfaces.
语种英语
WOS记录号WOS:000354757300001
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/146239
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
2.Peking Univ, Int Ctr Quantum Mat, Beijing 100871, Peoples R China
3.Peking Univ, Sch Phys, Beijing 100871, Peoples R China
4.Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China
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Wang, Zhi-qiang,Hao, Qun-qing,Mao, Xin-chun,et al. Characterization of the Excited State on Methanol/TiO2(110) Interface[J]. CHINESE JOURNAL OF CHEMICAL PHYSICS,2015,28(2):123-127.
APA Wang, Zhi-qiang.,Hao, Qun-qing.,Mao, Xin-chun.,Zhou, Chuan-yao.,Ma, Zhi-bo.,...&Yang, Xue-ming.(2015).Characterization of the Excited State on Methanol/TiO2(110) Interface.CHINESE JOURNAL OF CHEMICAL PHYSICS,28(2),123-127.
MLA Wang, Zhi-qiang,et al."Characterization of the Excited State on Methanol/TiO2(110) Interface".CHINESE JOURNAL OF CHEMICAL PHYSICS 28.2(2015):123-127.
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