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Development of Atomic Force Microscopy for Nanoscale Potential Distribution Measurement in Highly Concentrated Electrolyte Environments

Research Project

Project/Area Number 21K20501
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0402:Nano/micro science, applied condensed matter physics, applied physics and engineering, and related fields
Research InstitutionKanazawa University

Principal Investigator

Hirata Kaito  金沢大学, 新学術創成研究機構, 博士研究員 (50909984)

Project Period (FY) 2021-08-30 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords原子間力顕微鏡 / 液中電位計測 / 電気化学 / 金属腐食 / 触媒 / オープンループ電位顕微鏡 / 局所腐食 / 液中電位計測技術 / 高Cr基合金 / 液中局所電位分布計測 / 電気化学反応分布 / 酸化還元反応
Outline of Research at the Start

「金属腐食」や「触媒反応」などの界面の電気化学現象理解には、液中で電荷・電位をナノスケール計測できる技術が必要である。我々が開発した液中オープンループ電位顕微鏡(OL-EPM)は、それをできる独創的な技術であるが、10 mM以下の電解液濃度制限がある。通常の電気化学反応は、それ以上の高濃度電解液中で生じていることが多く、その様な環境でしか観察できない現象も存在する。本研究では、装置原理の探求により、高周波で変調できるOL-EPMを開発することで本技術の原理的制限を解決する。

Outline of Final Research Achievements

Open-loop electric potential microscopy (OL-EPM) is a measurement technique based on atomic force microscopy, which enables the measurement of the nanoscale surface structure and potential distribution in an electrolyte. However, this technique is limited to applying in a relatively low concentration (< 10 mM) because of its principle. In this study, we developed an ultra-short cantilever that is four times higher frequency than conventional ones, enabling measurement in an electrolyte with three times higher concentration than the previous condition. We also proposed a new measurement method for OL-EPM measurement by electrostatically exciting near the secondary resonance frequency, and demonstrated the feasibility of the proposed method.

Academic Significance and Societal Importance of the Research Achievements

電極-電解液界面における電気化学反応は、「金属腐食」や「触媒」、「電池」などと密接に関係しており、学術・産業分野においても重要である。これら現象について理解を進展させるため、近年では反応分布などを局所的に直接計測するための計測手法が求められている。本研究で開発した技術により、これまでよりも高濃度環境下でナノスケールの液中電位計測が可能になったことで、従来では困難であったモフォロジーと反応性などについて液中で理解することが可能となった。これにより新規材料開発のための設計指針を示すことが可能になる。今後は、界面科学、腐食科学、触媒化学などの発展、ひいては脱炭素社会発展にも貢献するものと考える。

Report

(3 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • Research Products

    (12 results)

All 2023 2022 2021 Other

All Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (7 results) (of which Int'l Joint Research: 4 results) Remarks (2 results)

  • [Journal Article] Molecular Scale Structure and Kinetics of Layer-by-Layer Peptide Self-Organization at Atomically Flat Solid Surfaces2023

    • Author(s)
      Yurtsever Ayhan、Sun Linhao、Hirata Kaito、Fukuma Takeshi、Rath Siddharth、Zareie Hadi、Watanabe Shinji、Sarikaya Mehmet
    • Journal Title

      ACS Nano

      Volume: 17 Issue: 8 Pages: 7311-7325

    • DOI

      10.1021/acsnano.2c10673

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Nanoscale Corrosion Mechanism at Grain Boundaries of the Al-Zn-Mg Alloy Investigated by Open-Loop Electric Potential Microscopy2023

    • Author(s)
      Yamamoto Shinnosuke、Taniguchi Daiki、Okamoto Takahiro、Hirata Kaito、Ozawa Takahiro、Fukuma Takeshi
    • Journal Title

      The Journal of Physical Chemistry C

      Volume: 127 Issue: 11 Pages: 5281-5288

    • DOI

      10.1021/acs.jpcc.2c08322

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Local Cross-Coupling Activity of Azide-Hexa(ethylene glycol)-Terminated Self-Assembled Monolayers Investigated by Atomic Force Microscopy2021

    • Author(s)
      Lebitania Julie Ann、Inada Natsumi、Morimoto Masayuki、You Jiaxun、Shahiduzzaman Md.、Taima Tetsuya、Hirata Kaito、Fukuma Takeshi、Ohta Akio、Asakawa Tsuyoshi、Asakawa Hitoshi
    • Journal Title

      Langmuir

      Volume: 37 Issue: 50 Pages: 14688-14696

    • DOI

      10.1021/acs.langmuir.1c02451

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] Corrosion Mechanism of Aluminum Alloy at Grain Boundaries Investigated by in-Liquid Nanoscale Potential Measurement Technique2022

    • Author(s)
      S.Yamamoto, D. Taniguchi, K. Hirata, T. Ozawa, T. Fukuma
    • Organizer
      AVS 68th INTERNATIONA SYMPOSIUM & EXHIBITION
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 液中局所電位分布計測技術を用いたTi合金表面におけるナノスケールカソード反応解析2022

    • Author(s)
      小西沙和、近江純一、谷口大騎、山本伸之介、平田海斗、 水島大地、伊藤元雄、福間剛士
    • Organizer
      第69回材料と環境討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 液中電位分布計測技術を用いた炭素鋼のナノスケールその場解析2022

    • Author(s)
      山本伸之介,水島大地,平田海斗, 福間剛士
    • Organizer
      第69回材料と環境討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 液中局所電位分布計測技術を用いたTi合金表面におけるナノスケールカソード反応解析2022

    • Author(s)
      小西沙和、近江純一、谷口大騎、山本伸之介、平田海斗、水島大地、伊藤元雄、福間剛士
    • Organizer
      第83回 応用物理学会秋季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] In-situ Nanoscale Analysis of Corrosion Mechanism of Carbon Steel by In-Liquid Potential Distribution Measurement Technique2021

    • Author(s)
      S. Yamamoto , K. Hirata , D. Mizushima and T. Fukuma
    • Organizer
      The 9 International Symposium on Surface Science (ISSS-9)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Direct Observation of Local Corrosion around the Al-Fe Intermetallic Particle in the Al Alloy by In-liquid Open-loop Electric Potential Microscopy2021

    • Author(s)
      K. Hirata, T. Okamoto, T. Kitagawa, T. Ozawa and T. Fukuma
    • Organizer
      The 9 International Symposium on Surface Science (ISSS-9)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Corrosion Mechanism of Aluminum Alloy at Grain Boundaries Investigated by in-Liquid Nanoscale Potential Measurement Technique2021

    • Author(s)
      S. Yamamoto, D. Taniguchi, K. Hirata, T. Ozawa, T. Fukuma
    • Organizer
      29th International Colloquium on Scanning Probe Microscopy (ICSPM29)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Remarks] 金沢大学福間研究室ホームページ

    • URL

      http://fukuma.w3.kanazawa-u.ac.jp/

    • Related Report
      2022 Annual Research Report
  • [Remarks] 福間研究室

    • URL

      http://fukuma.w3.kanazawa-u.ac.jp/NewHP/international/international.html

    • Related Report
      2021 Research-status Report

URL: 

Published: 2021-10-22   Modified: 2024-01-30  

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