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Synthesis of coordination networks using ionic liquids as precursors and their application to proton conductors

Research Project

Project/Area Number 22K19064
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 35:Polymers, organic materials, and related fields
Research InstitutionKyoto University

Principal Investigator

Horike Satoshi  京都大学, 理学研究科, 教授 (70552652)

Project Period (FY) 2022-06-30 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2023: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2022: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Keywordsイオン液体 / 配位高分子 / 相転移 / ガラス / イオン伝導 / プロトン伝導 / 非晶質 / ドーピング
Outline of Research at the Start

燃料電池はクリーンエネルギーの獲得のためのコア技術の一つであるが、内部構造を構成する電解質(イオンを伝導する物質)の性能向上が求められる。本研究では金属と分子をつなぎ合わせた高次構造を設計し、その内部で高いイオン(プロトン)伝導を示す柔らかい新規電解質材料を作ることを目的とする。特にプロトン伝導度、安定性、膜の成形加工性を兼ね備えた材料を見出してゆく。

Outline of Final Research Achievements

Ionic liquid is a general term for salts composed of cations and anions with a melting point of less than 100°C. In this study, new coordination polymers were synthesized using ionic liquids as precursors, and their phase transition properties, structures, and physical properties were investigated to find the differences from conventional coordination polymers and their material performances. The synthesis of coordination polymers using ionic liquids under various conditions revealed that various coordination polymers were obtained, especially those in which the anions constituting the ionic liquid bridged metal ions. Many of them have high dynamic properties at room temperature, and a wide range of crystal melting is observed at temperatures below 150℃. Using these properties, we have evaluated their macromolding (e.g., membranes and fibers), porosity, and conductivity, and found their complex functions.

Academic Significance and Societal Importance of the Research Achievements

イオン液体と配位高分子の学問領域は一般的に大きく分けられており、それらを互いに見据えながら新物質を合成する研究は限られていた。本研究成果により、イオン液体が広く配位高分子の合成に活用できる指針を与えられた。またイオン液体特有の小さい静電相互作用や多様な分子配座を配位高分子構造に組み込むことができるため、より低い融点、あるいは内部自由度を上げることによるガス透過やイオン伝導性を与えられることを見出した。膜やファイバー状で選択的なガス透過や伝導性を発現することは、マクロ材料応用において結晶では難しい特徴であり、材料としての可能性も大きく引き上げる結果である。

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (9 results)

All 2023 2022 Other

All Int'l Joint Research (1 results) Journal Article (8 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 8 results,  Open Access: 2 results)

  • [Int'l Joint Research] VISTEC(タイ)

    • Related Report
      2022 Research-status Report
  • [Journal Article] Heterogenous CO2 Reduction Photocatalysis of Transparent Coordination Polymer Glass Membranes Containing Metalloporphyrins2023

    • Author(s)
      Izu Hitoshi、Tabe Hiroyasu、Namiki Yuji、Yamada Hiroki、Horike Satoshi
    • Journal Title

      Inorganic Chemistry

      Volume: 62 Issue: 29 Pages: 11342-11349

    • DOI

      10.1021/acs.inorgchem.3c00700

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Photoexcited Anhydrous Proton Conductivity in Coordination Polymer Glass2023

    • Author(s)
      Ma Nattapol、Impeng Sarawoot、Bureekaew Sareeya、Morozumi Naoki、Haga Masa-aki、Horike Satoshi
    • Journal Title

      Journal of the American Chemical Society

      Volume: 145 Issue: 17 Pages: 9808-9814

    • DOI

      10.1021/jacs.3c01821

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Hierarchical Metal‐Organic Network‐Forming Glasses toward Applications2023

    • Author(s)
      Wei Yong‐Sheng、Ashling Christopher W.、Watcharatpong Teerat、Fan Zeyu、Horike Satoshi
    • Journal Title

      Advanced Functional Materials

      Volume: - Issue: 43

    • DOI

      10.1002/adfm.202307226

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Formation of Porosity toward Acetylene upon Vitrification of Non-porous Photochromic Coordination Polymer Crystals2023

    • Author(s)
      Fan Zeyu、Wei Yong-Sheng、Tabe Hiroyasu、Nakatani Tomotaka、Das Chinmoy、Yamada Hiroki、Horike Satoshi
    • Journal Title

      Chemistry of Materials

      Volume: 35 Issue: 10 Pages: 3859-3866

    • DOI

      10.1021/acs.chemmater.2c03510

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Network Size Control in Coordination Polymer Glasses and Its Impact on Viscosity and H<sup>+</sup> Conductivity2022

    • Author(s)
      Ogawa Tomohiro、Takahashi Kazuki、Kurihara Takuya、Nagarkar Sanjog S.、Ohara Koji、Nishiyama Yusuke、Horike Satoshi
    • Journal Title

      Chemistry of Materials

      Volume: 34 Issue: 13 Pages: 5832-5841

    • DOI

      10.1021/acs.chemmater.2c00494

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Modulation of proton conductivity in coordination polymer mixed glasses2022

    • Author(s)
      Thanaphatkosol Chonwarin、Ma Nattapol、Kageyama Kotoha、Watcharatpong Teerat、Tiyawarakul Thanakorn、Kongpatpanich Kanokwan、Horike Satoshi
    • Journal Title

      Chemical Communications

      Volume: 13 Issue: 41 Pages: 6064-6067

    • DOI

      10.1039/d2cc01266a

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Coordination polymer-forming liquid Cu(2-isopropylimidazolate)2022

    • Author(s)
      Watcharatpong Teerat、Pila Taweesak、Maihom Thana、Ogawa Tomohiro、Kurihara Takuya、Ohara Koji、Inoue Tadashi、Tabe Hiroyasu、Wei Yong-Sheng、Kongpatpanich Kanokwan、Horike Satoshi
    • Journal Title

      Chemical Science

      Volume: 13 Issue: 38 Pages: 11422-11426

    • DOI

      10.1039/d2sc03223f

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Eutectic CsHSO<sub>4</sub>-Coordination Polymer Glasses with Superprotonic Conductivity2022

    • Author(s)
      Ma Nattapol、Horike Nao、Lombardo Loris、Kosasang Soracha、Kageyama Kotoha、Thanaphatkosol Chonwarin、Kongpatpanich Kanokwan、Otake Ken-ichi、Horike Satoshi
    • Journal Title

      Journal of the American Chemical Society

      Volume: 144 Issue: 40 Pages: 18619-18628

    • DOI

      10.1021/jacs.2c08624

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research

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Published: 2022-07-05   Modified: 2025-01-30  

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