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3D-visualization of ion dynamics in protonic ceramic fuel cells

Research Project

Project/Area Number 20K15023
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 26020:Inorganic materials and properties-related
Research InstitutionNagoya University

Principal Investigator

Hirosuke Matsui  名古屋大学, 理学研究科, 講師 (90754309)

Project Period (FY) 2020-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
KeywordsCT-XAFS / 固体高分子形燃料電池 / Pt電極触媒 / 加速劣化試験 / 蛍光X線イメージング / CT-EXAFS / 走査型蛍光CT-XAFS / 劣化 / ラジカルスカベンジャー / XAFS / 酸化鉄 / 水熱合成 / Crドープ / プロトン伝導セラミック燃料電池 / 固体電解質 / オペランド計測
Outline of Research at the Start

プロトン伝導セラミック燃料電池駆動下でのオペランドCT-XAFS解析を実現させ、非平衡状態の固体電解質中のイオン密度の直接可視化、及びイオン伝導パスの3次元可視化を行い、デバイス中の空間的な階層反応や、材料中の局所の劣化・反応を議論する。CT-XAFSデータ中に含まれる膨大なデータ点 (約100億点) からは、デバイスの実空間中におけるイオン伝導や劣化などのデバイス特性に関連する特徴量を抽出することができ、その空間的な位置の関係や可視化された構造パラメータの相互関係、そして最終的には統計解析へ展開することで、デバイス反応のモデル化や、デバイス設計の具体的指針を得る。

Outline of Final Research Achievements

We further developed CT-XAFS imaging to apply to more tenuous material systems and to extract local structural information from CT-XAFS analysis. First, we realized scanning fluorescence CT-XAFS imaging to visualize the distribution and chemical states of dilute elements in materials in three dimensions. Next, EXAFS fitting analysis in CT-XAFS data was realized, and the local structure information on the coordination number and interatomic distance of chemical bonds was also successfully visualized in three dimensions in the sample space.

Academic Significance and Societal Importance of the Research Achievements

本研究の実施により、材料内の微量元素や局所構造の3次元可視化が実現され、これまで明らかにされなかった試料内の不均一反応やマイナー種の反応、そしてこれらを時間軸方向に同視野可視化することで、反応の軌跡も追跡できるようになった。現在、情報学の研究者との連携も開始しており、将来的にはイメージング計測の性能で制限される時間・空間軸に飛び飛びとなったスパースなデータの情報処理や、イメージング解析によって得られた多次元、且つ膨大なデータ(数億点以上)の統計解析、データ蓄積を生かした知能創生など、さらなる研究発展を目指したい。

Report

(3 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (15 results)

All 2022 2021 2020

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 1 results) Presentation (9 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] <i>Operando</i> Imaging of Ce Radical Scavengers in a Practical Polymer Electrolyte Fuel Cell by 3D Fluorescence CT?XAFS and Depth-Profiling Nano-XAFS?SEM/EDS Techniques2022

    • Author(s)
      Matsui Hirosuke、Takao Shinobu、Higashi Kotaro、Kaneko Takuma、Samjesk? Gabor、Uruga Tomoya、Tada Mizuki、Iwasawa Yasuhiro
    • Journal Title

      ACS Applied Materials &amp; Interfaces

      Volume: 14 Issue: 5 Pages: 6762-6776

    • DOI

      10.1021/acsami.1c22336

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Variation of Local Structure and Reactivity of Pt/C Catalyst for Accelerated Degradation Test of Polymer Electrolyte Fuel Cell Visualized by Operando 3D CT‐XAFS Imaging2022

    • Author(s)
      Matsui Hirosuke、Ishiguro Nozomu、Tan Yuanyuan、Maejima Naoyuki、Muramoto Yuta、Uruga Tomoya、Higashi Kotaro、Nguyen Duong‐Nguyen、Dam Hieu‐Chi、Samjesk? Gabor、Tada Mizuki
    • Journal Title

      ChemNanoMat

      Volume: 8 Issue: 4

    • DOI

      10.1002/cnma.202200008

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Oxygen Reduction Reaction Performance Tuning on Pt Nanoparticle/MWCNT Catalysts by Gd Species2020

    • Author(s)
      K. Ichihashi, S. Muratsugu, H. Matsui, K. Higashi, O. Sekizawa, T. Uruga, and M. Tada
    • Journal Title

      J. Phys. Chem. C

      Volume: 124 Issue: 49 Pages: 26925-26936

    • DOI

      10.1021/acs.jpcc.0c09308

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Visualization and Understanding of Degradation Behaviors of a PEFC Pt/C Cathode Electrocatalyst by a Multi-Analysis System Combining Time-Resolved Quick XAFS, Three-Dimensional XAFS-CT and Same-View Nano-XAFS/STEM-EDS Techniques2020

    • Author(s)
      K. Higashi, S. Takao, G. Samjeske;, H. Matsui, M. Tada, T. Uruga, and Y. Iwasawa
    • Journal Title

      Phys. Chem. Chem. Phys.

      Volume: 22 Issue: 34 Pages: 18919-18931

    • DOI

      10.1039/d0cp01356k

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Reversible structural transformation and redox properties of Cr-loaded iron oxide dendrites studied by in situ XANES spectroscopy2020

    • Author(s)
      1.H. Matsui, N. Ishiguro, Y. Suzuki, K. Wakamatsu, C. Yamada, K. Sato, N. Maejima, T. Uruga, and M. Tada
    • Journal Title

      Phys. Chem. Chem. Phys.

      Volume: 22 Issue: 48 Pages: 28093-28099

    • DOI

      10.1039/d0cp04416d

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] 3D imaging of degradation process at the interface of rubber and metal by CT-XAFS2022

    • Author(s)
      Hirosuke MATSUI,Yuta MURAMOTO, Tomoya URUGA, Takashi KAKUBO, Naoya AMINO, Duy Tai DINH, Hieu Chi DAM, Mizuki TADA
    • Organizer
      日本化学会第102春季年会(2022)
    • Related Report
      2021 Annual Research Report
  • [Presentation] オンサイトSO2被毒によるPEFC Ptカソード触媒のoperando Pt LⅢ端XAFS解析2022

    • Author(s)
      佐藤功真、松井公佑、Samjeske Gabor、宇留賀朋哉、唯美津木
    • Organizer
      日本化学会第102春季年会(2022)
    • Related Report
      2021 Annual Research Report
  • [Presentation] Operando Pt LIII端XAFSによるPEFC Pt/Cカソード触媒のオンサイトSO2被毒・回復処理における局所構造解析2022

    • Author(s)
      佐藤功真、松井公佑、宇留賀朋哉、唯美津木
    • Organizer
      第35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
      2021 Annual Research Report
  • [Presentation] ゴム-金属接着層のCu K端CT-XAFSイメージング2022

    • Author(s)
      村本雄太、松井公佑、宇留賀朋哉、唯美津木
    • Organizer
      第35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
      2021 Annual Research Report
  • [Presentation] 3D imaging of distribution and local structure of Pt electrocatalyst in PEFC MEA by operando CT-XAFS technique2021

    • Author(s)
      Hirosuke Matsui, Nozomu Ishiguro, Yuanyuan Tan, Naoyuki Maejima, Tomoya Uruga, Kotaro Higashi, Mizuki Tada
    • Organizer
      2021 International Chemical Congress of Pacific Basin Societies (Pacifichem 2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Redox responsibility of SO2-poisoned PEFC Pt cathode catalyst by operando XAFS analysis2021

    • Author(s)
      Hirosuke Matsui,Koshin Sato, Tomoya Uruga, Mizuki Tada
    • Organizer
      Materials Research Meeting 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] PEFC Pt/Cカソード触媒のSO2被毒に対するin-situ Pt LIII端XAFS解析2021

    • Author(s)
      松井公佑、佐藤功真、宇留賀朋哉、唯美津木
    • Organizer
      第24回XAFS討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] The 3rd Workshop of the Reaction Infography (R-ing) Unit (Online)2021

    • Author(s)
      松井公佑,石黒志, Duong-Nguyen Nguyen, Hieu Chi Dam, 東晃太朗,宇留賀朋哉, 唯美津木
    • Organizer
      第34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
      2020 Research-status Report
  • [Presentation] 3D-Visualization of Catalyst Materials and its Application to Infographic Approach2020

    • Author(s)
      H. Matsui
    • Organizer
      The 3rd Workshop of the Reaction Infography (R-ing) Unit (Online)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Patent(Industrial Property Rights)] ゴム組成物の評価方法2021

    • Inventor(s)
      鹿久保隆志, 唯美津木, 松井公佑
    • Industrial Property Rights Holder
      鹿久保隆志, 唯美津木, 松井公佑
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Related Report
      2021 Annual Research Report

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Published: 2020-04-28   Modified: 2023-01-30  

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