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Atomic scale structure and mechanism of grain-boundary ionic conduction in solid electrolytes

Research Project

Project/Area Number 19H02801
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 36010:Inorganic compounds and inorganic materials chemistry-related
Research InstitutionKyushu University

Principal Investigator

Matsumoto Hiroshige  九州大学, カーボンニュートラル・エネルギー国際研究所, 教授 (70283413)

Co-Investigator(Kenkyū-buntansha) 松田 潤子  九州大学, 水素エネルギー国際研究センター, 教授 (00415952)
多田 朋史  九州大学, エネルギー研究教育機構, 教授 (40376512)
ステイコフ アレキサンダー  九州大学, カーボンニュートラル・エネルギー国際研究所, 准教授 (80613231)
Klotz Dino  九州大学, カーボンニュートラル・エネルギー国際研究所, 助教 (00814849)
Ghuman Kulbir  九州大学, カーボンニュートラル・エネルギー国際研究所, 学術研究員 (10801102)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2021: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2020: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2019: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Keywords粒界 / イオン伝導 / 酸化物イオン伝導体 / プロトン伝導体 / イオン伝導性固体 / 電解質 / 電極
Outline of Research at the Start

固体酸化物燃料電池や水蒸気電解は、効率の高い『化学エネルギー⇔電気エネルギー』変換デバイスであり、再生可能エネルギーを軸としたエネルギーシステムの実現に欠かせない。本研究は、電気化学エネルギー変換デバイスの最も重要な構成要素でありながら、その性質がよく分かっていないイオン伝導性固体の「結晶粒界」に焦点を当て、多結晶性イオン伝導体における粒界構造(原子配列モデル)の構築、および、粒界の原子レベルでの粒界の特徴付けとイオン伝導機構の解明を試み、粒内のイオン伝導機構に関するこれまでの知見と統合することで、多結晶体内のイオン伝導現象について理解する。

Outline of Final Research Achievements

The contribution of grain boundaries in polycrystalline ion-conductive solids, which form the basis for energy conversion electrochemical devices, was investigated. The aim was to study the construction of grain boundary structures in polycrystalline ion conductors, the characterization of grain boundaries at the atomic level, and the elucidation of the ion conduction mechanism. Insights into the grain boundary structure of stabilized zirconia and its impact on ion conduction were obtained by combining electron microscopy observations with computational science. Additionally, the space charge model at the grain boundaries was supported through the impedance response to light.

Academic Significance and Societal Importance of the Research Achievements

固体酸化物形燃料電池、リチウムイオン電池などの電気化学デバイスは、効率の高いエネルギー変換と貯蔵手段を提供し、その中では固体電解質や電極といったイオン伝導性固体が主要な役割を果たしている。
本研究で得られた知見は、多結晶イオン伝導性固体の材料設計において、粒内だけでなく粒界に対しても最適化することに寄与し、より伝導性の高いイオン伝導性多結晶固体の創出につながると期待される。

Report

(4 results)
  • 2022 Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (13 results)

All 2022 2020 2019 Other

All Int'l Joint Research (3 results) Journal Article (4 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 4 results) Presentation (6 results) (of which Int'l Joint Research: 3 results,  Invited: 2 results)

  • [Int'l Joint Research] INRS(カナダ)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] INRS(カナダ)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] INRS(カナダ)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Photo-enhanced ionic conductivity across grain boundaries in polycrystalline ceramics2022

    • Author(s)
      Defferriere Thomas、Klotz Dino、Gonzalez-Rosillo Juan Carlos、Rupp Jennifer L. M.、Tuller Harry L.
    • Journal Title

      Nature Materials

      Volume: 21 Issue: 4 Pages: 438-444

    • DOI

      10.1038/s41563-021-01181-2

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Molecular dynamics study of oxygen-ion diffusion in yttria-stabilized zirconia grain boundaries2022

    • Author(s)
      Madrid Madrid Jose Carlos、Matsuda Junko、Leonard Kwati、Matsumoto Hiroshige、Ghuman Kulbir Kaur
    • Journal Title

      Journal of Materials Chemistry A

      Volume: 10 Issue: 5 Pages: 2567-2579

    • DOI

      10.1039/d1ta08309k

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Tailored and Improved Protonic Conductivity through Ba(ZxCe10-x)0.08Y0.2O3-δ Ceramics Perovskites Type Oxides for Electrochemical Devices2022

    • Author(s)
      Leonard Kwati、Okuyama Yuji、Ivanova Mariya E.、Meulenberg Wilhelm A.、Matsumoto Hiroshige
    • Journal Title

      ChemElectroChem

      Volume: 9 Issue: 4

    • DOI

      10.1002/celc.202101663

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Microstructural and Electronic Properties of the YSZ/CeO2 Interface via Multiscale Modeling2020

    • Author(s)
      Kulbir K. Ghuman, Elisa Gilardi, Daniele Pergolesi, John Kilner, and Thomas Lippert
    • Journal Title

      J. Phys. Chem. C

      Volume: 124 Issue: 1 Pages: 15680-15687

    • DOI

      10.1080/23746149.2020.1848458

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Investigating the Origin of Enhanced Catalytic Activity in LnCo0.5Ni0.5O3-δ (Ln = La, Pr, Nd) "Positrodes" on Ceramic Protonic electrolytes2022

    • Author(s)
      Kwati Leonard、Aleksandar Staykov、Paulo Wiff、Wilhelm A. Meulenberg、Hiroshige Matsumoto
    • Organizer
      第48回固体イオニクス討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Insertion of electron-blocking layer at steam/air electrode for suppression of electronic leakage in proton-conductor cells2022

    • Author(s)
      Hiroshige Matsumoto*, Kwati Leonard, Veeramani Vediyappan, Taisei Besshi, Yukino Fukahori
    • Organizer
      The Power of Interfaces 2022
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Understanding the Origin of Enhanced Catalytic Activity in LnCo0.5Ni0.5O3-δ (Ln = Pr, La) Perovskites Type Oxides on Protonic Electrochemical Device2022

    • Author(s)
      Kwati Leonard, Aleksandar Staykov, Hiroshige Matsumoto
    • Organizer
      23rd International Conference on Solid State Ionics
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 超音波透過法と密度汎関数法によるYを添加した SrZrO3とSrCeO3の機械的強度の評価2020

    • Author(s)
      藤﨑 貴也・ステイコフ アレクサンダー・松本 広重・日當 圭佑・井口 史匡
    • Organizer
      日本セラミックス協会第33回秋季シンポジウム
    • Related Report
      2020 Annual Research Report
  • [Presentation] Intermediate Temperature Steam Electrolysis Using Proton-Conducting Perovskites for Hydrogen Production2019

    • Author(s)
      Hiroshige Matsumoto, Kwati Leonard, Young-Sung Lee, Takaya Fujisaki
    • Organizer
      The 13th Pacific Rim Conference of Ceramic Societies (PACRIM13)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Yを添加したSrCeO3とSrZrO3の化学膨張を理解するための 酸素空孔の大きさと共有結合性2019

    • Author(s)
      藤﨑 貴也、アレクサンダー ステイコフ、クワティ レオナルド、ユーハン ジン、ナラヤン アルール、松本 広重
    • Organizer
      第45回固体イオニクス討論会
    • Related Report
      2019 Annual Research Report

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Published: 2019-04-18   Modified: 2024-01-30  

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