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Dynamics of hydrogen at surfaces in space-time limit

Research Project

Project/Area Number 18K05030
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 32010:Fundamental physical chemistry-related
Research InstitutionKyoto University

Principal Investigator

Okuyama Hiroshi  京都大学, 理学研究科, 准教授 (60312253)

Co-Investigator(Kenkyū-buntansha) 渡邊 一也  京都大学, 理学研究科, 教授 (30300718)
Project Period (FY) 2018-04-01 – 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: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords水素 / 走査トンネル顕微鏡 / STM / レーザー / 時間分解 / レーザー走査トンネル顕微鏡 / ダイナミクス / 単分子
Outline of Final Research Achievements

O-H flip motion was induced for a hydroxyl dimer on Cu (110) by irradiating it with a pulse laser. The reaction rate of the flip motion was measured as a function of the delay time of the pulses, where the damping behavior of about 400 fs was observed. This suggests that the flip motion proceeds in the multi-photon process and that the lifetime of the vibration excited state is about 400 fs. In addition, the photoelimination reaction of nitric oxide was observed by STM, and it was clarified that it proceeds in a non-adiabatic process and that the reaction rate strongly depends on the molecular environment on the surface.

Academic Significance and Societal Importance of the Research Achievements

固体表面における水素原子やプロトンの反応,運動を解明することは,燃料電池や触媒による水素化反応のメカニズムを理解する手掛かりとなる.本研究では燃料電池で重要な表面水酸基(OH)の超高速励起ダイナミクス計測を行い,光によって水酸基が反応する様子を捉えることで,その励起状態が400 fsで失活することを明らかにした。電極表面で起こる水素のエネルギー失活は電池の性能に直結するため,より性能の高い電池を開発する上で重要な知見になると考えられる。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (19 results)

All 2021 2020 2019 2018

All Journal Article (10 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 10 results,  Open Access: 1 results) Presentation (9 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Effect of local geometry on magnetic property of nitric oxide on Au(110)-(1×2)2021

    • Author(s)
      Koshida H.、Okuyama H.、Hatta S.、Aruga T.、Minamitani E.
    • Journal Title

      Physical Review B

      Volume: 103 Issue: 15 Pages: 155412-155412

    • DOI

      10.1103/physrevb.103.155412

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Adsorption and valence electronic states of nitric oxide on metal surfaces2021

    • Author(s)
      Shiotari Akitoshi、Koshida Hiroyuki、Okuyama Hiroshi
    • Journal Title

      Surface Science Reports

      Volume: 76 Issue: 1 Pages: 100500-100500

    • DOI

      10.1016/j.surfrep.2020.100500

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Metallic conduction through van der Waals interfaces in ultrathin $$\hbox{Bi}_2\hbox{Te}_3$$ films2021

    • Author(s)
      Hatta Shinichiro、Obayashi Ko、Okuyama Hiroshi、Aruga Tetsuya
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 5742-5742

    • DOI

      10.1038/s41598-021-85078-9

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Geometric and electronic structure correlation at a metal-organic interface2020

    • Author(s)
      H. Koshida, Y. Takahashi, H. Okuyama, S. Hatta, T. Aruga, Y. Hamamoto, I. Hamada, Y. Morikawa
    • Journal Title

      J. Phys. Chem. C.

      Volume: 124 Issue: 32 Pages: 17696-17701

    • DOI

      10.1021/acs.jpcc.0c04678

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Structure and phase transition of a uniaxially incommensurate In monolayer on Si(111)2019

    • Author(s)
      Terakawa Shigemi、Hatta Shinichiro、Okuyama Hiroshi、Aruga Tetsuya
    • Journal Title

      Physical Review B

      Volume: 100 Issue: 11 Pages: 115428-115428

    • DOI

      10.1103/physrevb.100.115428

    • NAID

      120006731581

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] 金属表面に吸着した一酸化窒素の単分子分光研究2019

    • Author(s)
      奥山 弘
    • Journal Title

      分光研究

      Volume: 68 Pages: 1-9

    • NAID

      40022068926

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Water-NO Complex Formation and Chain Growth on Cu(111)2018

    • Author(s)
      Koshida Hiroyuki、Hatta Shinichiro、Okuyama Hiroshi、Shiotari Akitoshi、Sugimoto Yoshiaki、Aruga Tetsuya
    • Journal Title

      The Journal of Physical Chemistry C

      Volume: 122 Issue: 16 Pages: 8894-8900

    • DOI

      10.1021/acs.jpcc.7b12447

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effect of adsorbates on single-molecule junction conductance2018

    • Author(s)
      H. Okuyama, H. So, S. Hatta, T. Frederiksen, T. Aruga
    • Journal Title

      Surf. Sci.

      Volume: 678 Pages: 169-176

    • DOI

      10.1016/j.susc.2018.04.024

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Atomic-scale study of formation of sodium-water complexes on Cu (110)2018

    • Author(s)
      A Shiotari, H Okuyama, S Hatta, T Aruga, I Hamada
    • Journal Title

      Physical Chemistry Chemical Physics

      Volume: 20 Issue: 17 Pages: 12210-12216

    • DOI

      10.1039/c8cp01237g

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Identification of single-layer metallic structure of indium on Si(1?1?1)2018

    • Author(s)
      Terakawa Shigemi、Hatta Shinichiro、Okuyama Hiroshi、Aruga Tetsuya
    • Journal Title

      Journal of Physics: Condensed Matter

      Volume: 30 Issue: 36 Pages: 365002-365002

    • DOI

      10.1088/1361-648x/aad7c5

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] Cu(100)における一酸化窒素の反応2020

    • Author(s)
      黒石健太, 奥山弘, 八田振一郎, 有賀哲也
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Cu(100)表面上の一酸化窒素の反応2020

    • Author(s)
      黒石健太, 奥山弘, 八田振一郎, 有賀哲也
    • Organizer
      2020年日本表面真空学会学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Cu(100)表面上の一酸化窒素の反応と電子状態2020

    • Author(s)
      黒石健太, 奥山弘, 八田振一郎, 有賀哲也
    • Organizer
      2020年度関西薄膜表面物理セミナー
    • Related Report
      2020 Annual Research Report
  • [Presentation] Cu(100)表面上の一酸化窒素の反応と電子状態2020

    • Author(s)
      黒石健太, 奥山弘, 八田振一郎, 有賀哲也
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Kondo resonance of NO on Au(110)-(1x2)2019

    • Author(s)
      H. Koshida, H. Okuyama, S. Hatta, T. Aruga
    • Organizer
      81st Okazaki Conference "Forefront of Measurement Technologies for Surface Chemistry and Physics in Real-Space, k-Space, and Real-Time
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Interaction of CuPc with Au(110) studied by STM2019

    • Author(s)
      H. Okuyama, H. Koshida S. Hatta, T. Aruga
    • Organizer
      81st Okazaki Conference "Forefront of Measurement Technologies for Surface Chemistry and Physics in Real-Space, k-Space, and Real-Time
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 金属表面におけるCuPcの吸着構造と電子状態2019

    • Author(s)
      奥山弘,越田裕之,八田振一郎,有賀哲也
    • Organizer
      第10回分子アーキテクトニクス研究会
    • Related Report
      2019 Research-status Report
  • [Presentation] Au(110)におけるCuPcの吸着構造と電子状態2019

    • Author(s)
      奥山弘, 越田裕之, 八田振一郎, 有賀哲也
    • Organizer
      表面・界面スペクトロスコピー2019
    • Related Report
      2019 Research-status Report
  • [Presentation] NO/Au(110)-(1x2)における近藤共鳴の観測2019

    • Author(s)
      越田裕之,奥山弘, 八田振一郎, 有賀哲也
    • Organizer
      表面・界面スペクトロスコピー2019
    • Related Report
      2019 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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