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题名: An AES, UPS and HREELS study of the oxidation and reaction of NB(110)
作者: Wang, YS;  Wei, XM;  Tian, ZJ;  Cao, YM;  Zhai, RS;  Ushikubo, T;  Sato, K;  Zhuang, SX
关键词: electron energy loss spectroscopy ;  niobium ;  oxidation
刊名: SURFACE SCIENCE
发表日期: 1997-02-10
卷: 372, 期:1-3, 页:L285-L290
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical ;  Physics, Condensed Matter
研究领域[WOS]: Chemistry ;  Physics
英文摘要: The oxidation of Nb(110) upon oxygen adsorption has been investigated using AES, UPS and HREELS. For low and medium exposures of oxygen, two new loss features at 720 and similar to 950 cm(-1) develop, which are assigned to Nb-O and Nb-O-Nb stretching vibrations, respectively. When oxygen exposure is high, a broad and strong loss peak at 600-900 cm(-1) appears, which is due to bulk-like Nb-O-Nb stretching vibrations, the changes in the vibrational spectroscopy suggest that, with increasing oxidation of the surface, NbO4 tetrahedra transform into NbO6 octahedra. Experiments involving methanol adsorption further confirm these results concerning the process of oxidation.
关键词[WOS]: ENERGY-LOSS SPECTROSCOPY ;  ADSORPTION ;  NIOBIUM ;  CHEMISORPTION ;  SURFACES ;  NB(100) ;  ACID
语种: 英语
WOS记录号: WOS:A1997WF20700007
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142826
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.DALIAN INST CHEM PHYS,STATE KEY LAB CATALYSIS,DALIAN 116023,PEOPLES R CHINA
2.MITSUBISHI CHEM CORP,YOKOHAMA,KANAGAWA 227,JAPAN
3.UNIV SCI & TECHNOL CHINA,DEPT CHEM PHYS,HEFEI 230026,PEOPLES R CHINA

Recommended Citation:
Wang, YS,Wei, XM,Tian, ZJ,et al. An AES, UPS and HREELS study of the oxidation and reaction of NB(110)[J]. SURFACE SCIENCE,1997,372(1-3):L285-L290.
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