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Detection and Analysis of Chemical Species at the Solution Surface by Photoelectron Emission Spectroscopy

Research Project

Project/Area Number 07554038
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section展開研究
Research Field 分離・精製・検出法
Research InstitutionOsaka University

Principal Investigator

WATANABE Iwao  Graduate School of Science, Osaka University, Associate Professor, 大学院・理学研究科, 助教授 (50028239)

Co-Investigator(Kenkyū-buntansha) WATARAI Hitoshi  Graduate School of Science, Osaka University, Professor, 大学院・理学研究科, 教授 (30091771)
文殊四郎 秀昭  大阪大学, 理学部, 助手 (80191071)
Project Period (FY) 1995 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥16,800,000 (Direct Cost: ¥16,800,000)
Fiscal Year 1997: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1996: ¥3,900,000 (Direct Cost: ¥3,900,000)
Fiscal Year 1995: ¥12,600,000 (Direct Cost: ¥12,600,000)
Keywordsphotoelectron emission spectroscopy / surface analysis / surface activity / solvation structure / vacuum ultraviolet spectroscopy / air / liquid interface / 液 界面
Research Abstract

1. There exist almost no ways to analyze the solvation structures of molecules and ions at the air/solution interface. The present project aims to detect and analyze the surface species by photoelectron emission spectroscopy. It utilizes monochromatic 6-10eV photons to irradiate the surface and detects photoelectrons emitted from the solution surface. The threshold photon energy to produce the photoelectrons corresponds to the ionization potential of the surface species. From the ionization potential one is able to discuss the solvation structure and from the photoelectron current the surface concentration.
2. Some tetraalkylammonium ions were used to segregate halide anions to the surface. The present technique successfully detected the surface accumulation of halide anions.
3. The halide anions segregated to the surface by large tetraalkylammonuim cations have smaller ionization potentials compared to that of anions with surface inactive counter cations. Tetrabutylammonium iodide solution showed stepwise decrease of ionization potential with the increase of bulk concentration. This must be indicating the stepwise dehydration of iodide anion at the solution surface.

Report

(4 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • 1995 Annual Research Report
  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] Iwao Watanabe: "Coordination Structure of Zinc(II) lons on a Langmuir Monolayer,Observed by Total-Reflection X-ray Absorption Fine Structure." J.Am.Chem.Soc.119. 12018-12019 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Iwao Watanabe: "X-ray Absorption Spectroscopy of Liquid Surface." :Rev.Sci.Instrum.68. 3307-3311 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] I.Watanabe: "Dehydration of Iodide Segregated by Tetraalkylammonium at the Air/Solution Interface Studied by Photoelectron Emission Spectroscopy." Chem.Phys.Lett.(in press). (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 渡辺 巌(共著): "実用シンクロトロン放射光" 日刊工業新聞社, 352 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Iwao Watanabe(共著): "Structure,Fluctuation,and Relaxation in Solutions : Studies in Physical and Theoretical Chemistry 83" Elsevier,Amsterdam, 446 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Iwao Watanabe: "Coordination structure of Zinc (II) ions on a Langmuir monolayr, observed by total-reflection X-ray absorption fine structure." J.Am.Chem.Soc.119. 12018-12019 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Iwao Watanabe: "X-ray absorption spectroscopy of liquid surface." Rev.Sci.Instrum.68. 3307-3311 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Iwao Watanabe: "Dehydration of iodide segregated by tetraalkylammonium at the air/solution interface studied by photoelectron emission spectroscopy." Chem.Phys.Lett.(in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Iwao Watanabe: Structure, Fluctuation, and Relaxation in Solutions : Studies in Physical and Theoretical Chemistry 83.Elsevier, Amsterdam,

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Iwao Watanabe: Structure, Fluctuation, and Relaxation in Solutions : Studies in Physical and Theoretical Chemistry 83.Elsevier, Amsterdam, (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Iwao Watanabe: "Coordination Structure of Zinc(II)lons on a Langmuir Monolayer,Observed by Total-Reflection X-ray Absorption Fine Structure." J.Am.Chem.Soc.,. 119. 12018-12019 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Iwao Watanabe: "X-ray Absorption Spectroscopy of Liquid Surface." Rev.Sci.Instrum.68. 3307-3311 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] I.Watanabe: "Dehydration of Iodide Segregated by Tetraalkylammonium at the Air/Solution Interface Studied by Photoelectron Emission Spectroscopy." Chem.Phys.Lett.(in press). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] 渡辺巌(共著): "実用シンクロトロン放射光" 日刊工業新聞社, 352 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Iwao Watanabe(共著): "Structure,Fluctuation,and Relaxation in Sulutions:Studies in Physical and Theoretical Chemistry 83" Elsevier,Amsterdam, 446 (1995)

    • Related Report
      1997 Annual Research Report
  • [Publications] S.Kikkawa: "Interface of lron Metal/Aluminum Nitride Multilayered Composite Film." Appl.Phys.Lett.68・(19). 2756-2758 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 柳瀬悦也: "大気圧Heイオン収量X線吸収微細構造法(XAFS)による薄膜試料の分析" 応用物理. 65・(12). 1267-1270 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Y.Sawa: "Temperature Dependence of EXAFS for Bromide Ions in Solution." J.Chem.Soc.,Faraday Trans.,. 91・(24). 4389-4393 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] N.Takahashi: "Vertical Ionization Potentials and CTTS Energies for Anions in Water and Acetonitrile." Chem.Phys.Lett.246. 183-186 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] H.Tanida: "Photoelectron Emission Spectroscopy Applied to Bromide Ion in Solvents." J.Molecular Liquids. 65/66. 409-412 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] I.Watanabe: "XAFS Spectra of Solution Surfaces by Total-Reflection Total-Electron Yield Method." Adv.X-ray Chem.Anal.Jpn.26s. 163-168 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] H.Monjushiro: "Probing Depth of Ultraviolet Photoelection Yield Spectroscopy in Hydrocarbon Film." Anal.Sci.11. 797-800 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] I.Watanabe: "EXAFS of Bromide Ion in Solvents and at Air/Solution Interface." J.Molecular Liquids. 65/66. 245-252 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] I.Watanabe: "Total Reflection Method Applied to an X-Ray Absorption Fine Structure Study of Aqueous Solution Surface." Anal.Sci.11. 525-528 (1995)

    • Related Report
      1995 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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