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Development of dynamics measurement of electronic state in solution chemical reaction for elucidation of solid-liquid interface phenomena

Research Project

Project/Area Number 17H02822
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Quantum beam science
Research InstitutionNagoya University

Principal Investigator

Ikenaga Eiji  名古屋大学, 未来材料・システム研究所, 准教授 (90443548)

Co-Investigator(Kenkyū-buntansha) 金山 直樹  信州大学, 総合医理工学研究科, 准教授(特定雇用) (80377811)
中尾 愛子  国立研究開発法人理化学研究所, 開拓研究本部, 専任研究員 (60342820)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2017: ¥12,610,000 (Direct Cost: ¥9,700,000、Indirect Cost: ¥2,910,000)
Keywords溶液の電子状態 / 固-液界面 / 大気圧溶液セル / 硬X線光電子分光 / 放射光 / 固液界面 / 電子状態 / 固気・固液界面 / 放射光光電子分光
Outline of Final Research Achievements

This research is the development of measurement that challenges the exploration for electronic states of solution, which is a frontier research field in the photoelectron spectroscopy. We have developed the advanced measurement technique that adds electric field dependence measurement to the "atmospheric pressure solution cell" using a photoelectron transmission window. In particular, we deepened our understanding of the complex solid-liquid interface phenomenon in systems having a particle-solute interface. From the observation the electronic state of Au nanoparticles (AuNP) dispersed in NaCl solution, the AuNP surface was negatively charged by the adsorption of ions. And we proposed that dispersed states of AuNP in the solution was attributed to the Coulomb repulsive interaction caused by the formation of the electric double layer. In addition, we succeeded in measuring the applied voltage potential in the solution, and dynamics measurement under voltage application.

Academic Significance and Societal Importance of the Research Achievements

本研究成果は、液状の資源・エネルギー・環境・医療問題の解決や技術開発の進歩に貢献する。電解液を用いる燃料電池等の高効率な次世代クリーンエネルギー開発や触媒効果を利用した高価な元素の大量消費を回避させる低炭素型社会の構築が求められる現状で、液体のような湿潤試料の界面電子状態分析は、これらの重要な課題を解決する最も有効な手段である。くわえて液体を対象とした電子状態の研究分野は、その計測の困難さから敬遠され、著しく遅れているのが現状である。このため光電子分光計測分野において、フロンティア研究分野といえる液体電子状態探索に挑み、放射光を用いた新規高度分光計測として端緒を開いたことが最大の成果である。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (9 results)

All 2019 2018 2017

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (8 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results)

  • [Journal Article] Hard X-ray Photoemission Spectroscopy at Two Public Beamlines of SPring-8: Current Status and Ongoing Developments2018

    • Author(s)
      E. Ikenaga, A. Yasui, N. Kawamura, M. Mizumaki, S. Tsutsui, and K. Mimura
    • Journal Title

      Synchrotron Radiation News

      Volume: 31 Issue: 4 Pages: 10-15

    • DOI

      10.1080/08940886.2018.1483652

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report 2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 硬X線光電子分光の新たな展開: 共鳴計測および溶液の電子状態観測2019

    • Author(s)
      池永英司
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 固液界面現象解明のための溶液制御セル開発と金ナノ粒子分散溶液の電子状態2019

    • Author(s)
      池永英司、谷本尚基、中尾愛子、金山直樹、小川智史、八木伸也
    • Organizer
      第32回日本放射光学会年会・放射光科学合同シンポジウム
    • Related Report
      2019 Annual Research Report
  • [Presentation] 溶液セルを用いた硬X線光電子分光による金ナノ粒子分散溶液の電子状態2018

    • Author(s)
      池永英司、谷本尚基、中尾愛子、金山直樹、小川智史、八木伸也
    • Organizer
      第79回応用物理学会秋季学術講演会
    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
  • [Presentation] 固液界面現象解明のための循環型“溶液”制御セル開発2018

    • Author(s)
      池永英司, 中尾愛子, 金山直樹, 八木伸也
    • Organizer
      第31回日本放射光学会年会・放射光科学合同シンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] 埋込界面およびバルク電子状態観測のための放射光硬X線光電子分光2018

    • Author(s)
      池永英司
    • Organizer
      第65回応用物理学会 春季学術講演会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 固液界面現象解明のための“溶液”制御セル開発と金ナノ粒子分散溶液の電子状態2018

    • Author(s)
      池永英司、谷本尚基、中尾愛子、金山直樹、小川智史、八木伸也
    • Organizer
      第32回日本放射光学会年会・放射光科学合同シンポジウム
    • Related Report
      2017 Annual Research Report
  • [Presentation] Development of environmental cell for observation of “solution” electronic states by AR-HAXPES2017

    • Author(s)
      E. Ikenaga, A. Nakao, N. Kanayama, and S. Yagi
    • Organizer
      International conference on HAXPES
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 固液界面現象解明のための循環型“溶液”制御セル開発2017

    • Author(s)
      池永英司, 中尾愛子, 金山直樹, 八木伸也
    • Organizer
      第31回日本放射光学会年会・放射光科学合同シンポジウム
    • Related Report
      2017 Annual Research Report

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Published: 2017-04-28   Modified: 2021-02-19  

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