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Construction of innovative proton conductors by precise structural control of inorganic-organic hybrid crystals

Research Project

Project/Area Number 21K05232
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 36010:Inorganic compounds and inorganic materials chemistry-related
Research InstitutionTokai University

Principal Investigator

Ito Takeru  東海大学, 理学部, 教授 (50376935)

Co-Investigator(Kenkyū-buntansha) 小口 真一  東海大学, 理学部, 准教授 (90580499)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2022: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2021: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords無機-有機ハイブリッド / ポリ酸 / 界面活性剤 / イオン液体 / 結晶 / プロトン伝導性 / 層状結晶 / 伝導性 / プロトン伝導
Outline of Research at the Start

燃料電池は環境負荷低減の観点から種々の動力源として期待される。水素-酸素型燃料電池の車載向け利用には、100℃以上の中温領域・無加湿条件下で機能する高性能プロトン伝導体が必要である。我々は、伝導性無機クラスター(ポリ酸)と界面活性剤から、プロトン伝導性を発現する無機-有機ハイブリッド結晶を合成してきた。本研究では、ポリ酸-界面活性剤ハイブリッド結晶のプロトン含有量と伝導パスとなるポリ酸の配列を精密に制御して、中温領域・無加湿条件下で高プロトン伝導性を発現させることを目指す。

Outline of Final Research Achievements

Polyoxometalate inorganic cluster anions were hybridized with cationic surfactants and ionic-liquids to obtain several inorganic-organic hybrid crystals. The composition and structure of the hybrid crystals can be precisely controlled by changing the organic cations and crystallization conditions. Proton, magnesium, and calcium ions were successfully introduced into the hybrid crystals. These hybrid crystals were conductive at 298 to 573 K, which could possibly applicable to new solid electrolytes for fuel-cell and post lithium-ion batteries.

Academic Significance and Societal Importance of the Research Achievements

本研究で得られた無機-有機ハイブリッド結晶は、いずれも世界的に唯一無二の化合物であり、学術的意義は非常に高い。良好なプロトン伝導性を発現するハイブリッド結晶も得られており、現行の燃料電池の性能向上、次世代型燃料電池の創出に貢献できると期待される。熱安定性の向上など更なる性能向上がなされれば実装化なども視野に入ってくるので、環境負荷低減型の社会の実現へ向けて社会的波及効果も大きいといえる。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (10 results)

All 2023 2022 2021 Other

All Journal Article (6 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 6 results,  Open Access: 4 results) Presentation (1 results) Remarks (3 results)

  • [Journal Article] Photoluminescent Layered Crystal Consisting of Anderson-Type Polyoxometalate and Surfactant toward a Potential Inorganic?Organic Hybrid Laser2023

    • Author(s)
      Mihara Ayaka、Kojima Tatsuhiro、Suda Yoriko、Maezawa Kyoka、Sumi Toshiyuki、Mizoe Naoyuki、Watanabe Ami、Iwamatsu Hironori、Oda Yoshiki、Okamura Yosuke、Ito Takeru
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 25 Issue: 1 Pages: 345-345

    • DOI

      10.3390/ijms25010345

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A redox-active inorganic crown ether based on a polyoxometalate capsule2023

    • Author(s)
      Tamai Nanako、Ogiwara Naoki、Hayashi Eri、Kamata Keigo、Misawa Toshiyuki、Ito Takeru、Kojima Tatsuhiro、Segado Mireia、Petrus Enric、Bo Carles、Uchida Sayaka
    • Journal Title

      Chemical Science

      Volume: 14 Issue: 20 Pages: 5453-5459

    • DOI

      10.1039/d3sc01077e

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] An Inorganic-Organic Hybrid Framework Composed of Polyoxotungstate and Long-Chained Bolaamphiphile2023

    • Author(s)
      H. Ikuma, S. Aoki, K. Kawahara, S. Ono, H. Iwamatsu, J. Kobayashi, Y. Kiyota, Y. Okamura, M. Higuchi, T. Ito
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 24 Issue: 3 Pages: 2824-2824

    • DOI

      10.3390/ijms24032824

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Polyoxomolybdate Layered Crystals Constructed from a Heterocyclic Surfactant: Syntheses, Pseudopolymorphism and Introduction of Metal Cations2022

    • Author(s)
      Kobayashi Jun、Shimura Keisuke、Mikurube Keisuke、Otobe Saki、Matsumoto Takashi、Ishikawa Eri、Naruke Haruo、Ito Takeru
    • Journal Title

      Materials

      Volume: 15 Issue: 7 Pages: 2429-2429

    • DOI

      10.3390/ma15072429

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Synthesis, characterization, and magnetic / electrochemical properties of Wells-Dawson polyoxometalate containing Ni (II) counter-ion2022

    • Author(s)
      Rehan Kanwar、Asma Maliha、Misawa Toshiyuki、Ito Takeru、Sokolov Andrei、Sher M.、Tirmizi Syed Ahmad、Sohail Manzar
    • Journal Title

      Journal of Molecular Structure

      Volume: 1254 Pages: 132331-132331

    • DOI

      10.1016/j.molstruc.2022.132331

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Porous Layered Inorganic?Organic Hybrid Frameworks Constructed from Polyoxovanadate and Bolaamphiphiles2021

    • Author(s)
      Kiyota Yoshiki、Kojima Tatsuhiro、Kawahara Ryosuke、Taira Minako、Naruke Haruo、Kawano Masaki、Uchida Sayaka、Ito Takeru
    • Journal Title

      Crystal Growth & Design

      Volume: 21 Issue: 12 Pages: 7230-7239

    • DOI

      10.1021/acs.cgd.1c01077

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Synthesis of Inorganic-Organic Hybrid Crystal Comprising gamma-type Octamolybdate2022

    • Author(s)
      M. Kobayashi, K. Udagawa, M. Nakagawa, T. Ito
    • Organizer
      日本MRS第32回年次大会
    • Related Report
      2022 Research-status Report
  • [Remarks] 東海大学理学部化学科 伊藤研究室

    • URL

      https://takeito2.wixsite.com/ito-sc

    • Related Report
      2023 Annual Research Report
  • [Remarks] 東海大学 理学部化学科 伊藤 研究室

    • URL

      https://takeito2.wixsite.com/ito-sc

    • Related Report
      2022 Research-status Report
  • [Remarks] 東海大学 理学部化学科 伊藤 建 研究室

    • URL

      https://takeito2.wixsite.com/ito-sc

    • Related Report
      2021 Research-status Report

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

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