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Reactions at electrode interfaces studied by high-sensitivity heterodyne-detected vibrational sum frequency generation spectroscopy

Research Project

Project/Area Number 19K15496
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 32010:Fundamental physical chemistry-related
Research InstitutionTohoku University

Principal Investigator

Inoue Ken-ichi  東北大学, 理学研究科, 助教 (60707686)

Project Period (FY) 2019-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords和周波発生分光法 / ヘテロダイン検出 / オゾン酸化反応 / 電気化学反応 / 電極界面 / フレネル係数 / 振動和周波発生分光法 / 和周波発生分光
Outline of Research at the Start

電気エネルギーと化学エネルギーを直接変換する電気化学反応は、近年のエネルギー問題・環境問題とも関連して重要性が増している。電気化学反応を理解するには、電位をかけたときに電極界面に形成される電気二重層の中での分子の溶媒和構造・吸着構造・中間体の構造を分子レベルで理解することが不可欠である。本研究では、界面選択的な分光法である振動和周波発生分光法にヘテロダイン検出・電場増強効果などを用いて電極界面反応の高感度なin situ測定を行う。得られた知見を基に電極界面反応の効率向上につながる指針を示すこと目指す。

Outline of Final Research Achievements

Electric double layer at electrode interfaces plays an important role in electrochemical reactions. In order to probe interfaces selectively, heterodyne-detected sum frequency generation spectrometer was constructed and was applied to study the reaction of unsaturated lipid monolayers under low-level ozone. Furthermore, reactions at electrode interfaces of lithium-ion and lithium-air batteries were investigated by using surface-enhanced Raman spectroscopy (SERS) and sum frequency generation spectroscopy.

Academic Significance and Societal Importance of the Research Achievements

本研究では、ヘテロダイン検出和周波発生分光システムを構築し、界面で起こる化学反応を実時間で追跡することに成功した。不飽和脂質は肺胞を覆う肺サーファクタントに含まれており、空気中に存在する程度の極低濃度オゾンでも呼吸器への影響は無視できないことを示している。また、電極界面で起こる電気化学反応測定から得られた知見は、リチウムイオン電池の作動に重要なSEI被膜作製方法や次世代二次電池して期待されているリチウム空気電池の溶媒分解抑制を検討していく上で重要な知見である。

Report

(3 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • Research Products

    (12 results)

All 2021 2020 2019

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (6 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Journal Article] Effect of Head Group on Low-Level Ozone Oxidation of Unsaturated Phospholipids on a Water Surface2021

    • Author(s)
      Inoue Ken-ichi、Fujimoto Kana、Takada Chunji、Ge Aimin、Ye Shen
    • Journal Title

      Bulletin of the Chemical Society of Japan

      Volume: 94 Issue: 2 Pages: 486-489

    • DOI

      10.1246/bcsj.20200250

    • NAID

      130007995349

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] In Situ Monitoring of the Unsaturated Phospholipid Monolayer Oxidation in Ambient Air by HD-SFG Spectroscopy2020

    • Author(s)
      K. Inoue、C. Takada、L. Wang、A. Morita、S. Ye
    • Journal Title

      The Journal of Physical Chemistry B

      Volume: 124 Issue: 25 Pages: 5246-5250

    • DOI

      10.1021/acs.jpcb.0c03408

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] In Situ Spectroscopic Investigations of Electrochemical Oxygen Reduction and Evolution Reactions in Cyclic Carbonate Electrolyte Solutions2020

    • Author(s)
      Peng Qiling、Qiao Yu、Kannari Koki、Ge Aimin、Inoue Ken-ichi、Ye Shen
    • Journal Title

      The Journal of Physical Chemistry C

      Volume: 124 Issue: 29 Pages: 15781-15792

    • DOI

      10.1021/acs.jpcc.0c03929

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Role of Oxygen in Surface Structures of the Solid-Electrolyte Interphase Investigated by Sum Frequency Generation Vibrational Spectroscopy2020

    • Author(s)
      Ge Aimin、Zhou Da、Inoue Ken-ichi、Chen Yanxia、Ye Shen
    • Journal Title

      The Journal of Physical Chemistry C

      Volume: 124 Issue: 32 Pages: 17538-17547

    • DOI

      10.1021/acs.jpcc.0c06390

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Probing the electrode-solution interfaces in rechargeable batteries by sum-frequency generation spectroscopy2020

    • Author(s)
      Ge Aimin、Inoue Ken-ichi、Ye Shen
    • Journal Title

      The Journal of Chemical Physics

      Volume: 153 Issue: 17 Pages: 170902-170902

    • DOI

      10.1063/5.0026283

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of Frequency-Dependent Fresnel Factor on the Vibrational Sum Frequency Generation Spectra for Liquid/Solid Interfaces2019

    • Author(s)
      Wang Lin、Nihonyanagi Satoshi、Inoue Ken-ichi、Nishikawa Kei、Morita Akihiro、Ye Shen、Tahara Tahei
    • Journal Title

      The Journal of Physical Chemistry C

      Volume: 123 Issue: 25 Pages: 15665-15673

    • DOI

      10.1021/acs.jpcc.9b04043

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Ozone oxidation of unsaturated lipid monolayer in the ambient air revealed by heterodyne-detected sum frequency generation spectroscopy2020

    • Author(s)
      井上賢一
    • Organizer
      化学系学協会東北大会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] In situ monitoring of the model pulmonary surfactant oxidation by low-level ozone2020

    • Author(s)
      井上賢一、髙田俊智、藤本佳奈、葛愛民、叶深
    • Organizer
      東北大学&理化学研究所連携シンポジウム
    • Related Report
      2020 Annual Research Report
  • [Presentation] ヘテロダイン検出和周波発生分光法を用いた極低濃度オゾンによる不飽和脂質単分子膜の酸化機構の解明2020

    • Author(s)
      井上賢一、髙田俊智、藤本佳奈、葛愛民、叶深
    • Organizer
      表面・界面スペクトロスコピー2020
    • Related Report
      2020 Annual Research Report
  • [Presentation] Novel spectroscopic study of charged interfaces2019

    • Author(s)
      Ken-ichi Inoue
    • Organizer
      2019 Summer Workshop Tohoku University and National Taiwan University Electrochemical Energy Conversion Research
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] ヘテロダイン検出振動和周波発生分光法を用いた極低濃度オゾン条件下における不飽和脂質単分子膜の酸化ダイナミクスの研究2019

    • Author(s)
      井上賢一、叶深
    • Organizer
      第13回分子科学討論会
    • Related Report
      2019 Research-status Report
  • [Presentation] Sum Frequency Generation Study on Charged Interfaces2019

    • Author(s)
      Ken-ichi Inoue
    • Organizer
      A Workshop on “Li/Na ion Battery materials”, Changchun
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2022-01-27  

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