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共有結合性有機骨格構造の設計と高速イオン伝導機能の開拓

Research Project

Project/Area Number 17J02255
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section国内
Research Field Polymer chemistry
Research InstitutionJapan Advanced Institute of Science and Technology

Principal Investigator

陶 閃閃  北陸先端科学技術大学院大学, 先端科学技術研究科, 特別研究員(PD)

Project Period (FY) 2017-04-26 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥900,000 (Direct Cost: ¥900,000)
KeywordsCOF / Proton conduction / Hydroxide ion conduction / 結合性有機骨格 / イオン伝導
Outline of Annual Research Achievements

Covalent organic frameworks (COFs) are a unique class of crystalline porous organic polymer that enables the construction of ordered one-dimensional mesoporous channels with a wide range of promising applications such as adsorption, catalysis, semiconductor, sensing and super capacitors.
I introduced crystalline H3PO4 to the pores of a stable TAPT-DMTP-COF and produced H3PO4@TAPT-DMTP-COF with different contents of H3PO4 in the pores. Notably, the H3PO4@TAPT-DMTP-COF achieves an exceptional proton conductivity up to 10^-2 S cm^-1at 160 °C.
Previously our group has been successfully developed the concept that the mesoporous channels of crystalline covalent organic frameworks can be designed to be the container of the proton carriers and the proton conductivity has been 2-4 orders of magnitude higher than those of microporous and nonporous polymers.
Then I also designed and synthesized COFs with polyelectrolyte units on pore walls by using pore surface engineering method and stable COFs as a precursor. The OH--appended COFs exhibited high OH- conduction. The conductivity of hydroxide ions along the ordered chains reached to 10^-4 S cm^-1 at 80 °C in water, which are four orders of magnitude higher than those of porous polymers reported. The hydroxide ion conduction requires low activation energy of 0.16 eV and occurs via a mechanism of proton hopping in the hydrogen network. These results suggest a new way based on crystalline porous covalent organic frameworks for designing anion-conducting materials.

Research Progress Status

平成30年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

平成30年度が最終年度であるため、記入しない。

Report

(2 results)
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (5 results)

All 2019 2018 2017 Other

All Int'l Joint Research (1 results) Presentation (4 results) (of which Int'l Joint Research: 3 results)

  • [Int'l Joint Research] シンガポール国立大学(シンガポール)

    • Related Report
      2018 Annual Research Report
  • [Presentation] Designing Stable Covalent Organic Frameworks for Proton Conduction2019

    • Author(s)
      S. Tao, Y. Nagao, D. Jiang
    • Organizer
      The 99th CSJ Annual Meeting
    • Related Report
      2018 Annual Research Report
  • [Presentation] Hydroxide Anion Conduction in Covalent Organic Frameworks2018

    • Author(s)
      S. Tao, D. Jiang
    • Organizer
      10th Singapore International Chemistry Conference (SICC10)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Design and Synthesis of Polyelectrolyte Covalent Organic Frameworks for Anion Transport2018

    • Author(s)
      タオ サンサン
    • Organizer
      第98春季年会(2018)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Proton Conduction in Crystalline and Porous Covalent Organic Frameworks2017

    • Author(s)
      タオ サンサン
    • Organizer
      The 66th SPSJ Annual Meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research

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Published: 2017-05-25   Modified: 2024-03-26  

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