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Development of ferroelectric mesocrystalline nanocomposites and clarification of their gigantic piezoelectric and dielectric effects mechanism

Research Project

Project/Area Number 21K04832
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 28030:Nanomaterials-related
Research InstitutionKagawa University

Principal Investigator

Feng Qi  香川大学, 創造工学部, 教授 (80274356)

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: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsナノ複合メソクリスタル / 強誘電性 / 巨大圧電効果 / 巨大誘電効果 / 結晶格子歪み / ソフト化学法
Outline of Research at the Start

本研究は、独自で開発したソフト化学法を用いて結晶方位を揃えた二種類のナノ結晶から構成された強誘電性ナノ複合メソクリスタルを作製し、Lattice Strain Engineering(結晶格子歪みの制御)による高性能圧電・誘電体材料を開発する。さらに機能発現のメカニズム解明により、強誘電性ナノ複合メソクリスタルに適用するLattice Strain Engineeringという新しい学問分野の基礎を構築する。以下の内容に沿って研究を行う。
①一連のナノ複合メソクリスタルの作製法の開発
②Lattice Strain Engineeringによる巨大圧電・誘電効果のメカニズム解明

Outline of Final Research Achievements

In this study, the ferroelectric mesocrystalline nanocomposites were developed using soft chemical process. The ferroelectric mesocrystalline nanocomposites are constructed from two kinds of nanocrystals with the same orientation and different lattice constants, forming a heteroepitaxial interface. The ferroelectric behavior can be controlled by lattice mismatching of the heteroepitaxial interface which results in a lattice strain. The lead-free ferroelectric mesocrystalline nanocomposites exhibit a giant piezoelectric response at 3.4% lattice mismatching, which can be larger than that of PZT.

Academic Significance and Societal Importance of the Research Achievements

本研究では、申請者らの研究成果を踏まえて、各種ナノ結晶から構成される強誘電性ナノ複合メソクリスタルを作製し、強誘電、圧電、誘電特性評価およびキュリー温度の上昇効果を系統的に検証し、結晶格子ミスマッチによる格子歪み、異なる自発分極方位や結晶構造の組合せ等の影響を調べ、巨大圧電・誘電効果の発生メカニズムを解明した。最適なナノ結晶の組合せを見出し、Lattice Strain Engineeringによる高性能メソクリスタル強誘電体材料を開発した。それにより強誘電性ナノ複合メソクリスタルのLattice Strain Engineeringという新しい学問分野の基礎の構築に貢献した。

Report

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

    (15 results)

All 2024 2023 2022 2021

All Journal Article (2 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results) Presentation (13 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] Mesocrystalline effect in a NiTiO<sub>3</sub>/TiO<sub>2</sub> nanocomposite for enhanced capacity of lithium-ion battery anodes2022

    • Author(s)
      Wang Xing、Cheng Weijie、Hu Jiaqiao、Su Ying、Kong Xingang、Uemura Shinobi、Kusunose Takafumi、Feng Qi
    • Journal Title

      Inorganic Chemistry Frontiers

      Volume: 9 Issue: 9 Pages: 2055-2067

    • DOI

      10.1039/d1qi01501j

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Lithium Ion Battery Anode of Mesocrystalline CoTiO<sub>3</sub>/TiO<sub>2</sub> Nanocomposite with Extremely Enhanced Capacity2021

    • Author(s)
      Wang Xing、Cheng Weijie、Hu Jiaqiao、Su Ying、Kong Xingang、Uemura Shinobi、Kusunose Takafumi、Feng Qi
    • Journal Title

      ACS Applied Energy Materials

      Volume: 4 Issue: 12 Pages: 13646-13656

    • DOI

      10.1021/acsaem.1c02337

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 放射能汚染水からSr2+除去用マンガン酸化物系イオンふるい吸着剤2024

    • Author(s)
      馮旗、神田玲子
    • Organizer
      第62回セラミックス基礎科学討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Fabrication of ultra-hydrophilic nanofiltration membrane using layered titanate nanosheets2024

    • Author(s)
      Lijie Li, Qi Feng
    • Organizer
      第62回セラミックス基礎科学討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Jiaqiao Hu, Qi Feng2024

    • Author(s)
      Enhanced photocatalytic performance of g-C3N4 by combination of π-π* and n-π* electronic transitions
    • Organizer
      第62回セラミックス基礎科学討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 層状チタン酸ナノシートを用いた逆浸透膜の作製と性能評価2023

    • Author(s)
      中村梢絵、馮旗
    • Organizer
      2023年日本化学会中国四国支部大会山口大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] マンガン酸化物系吸着剤によるSr2+吸着特性評価2023

    • Author(s)
      田村優志、馮旗
    • Organizer
      2023年日本化学会中国四国支部大会山口大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Bi13S18Br2薄膜の作製と太陽電池特性評価2023

    • Author(s)
      野沢すみれ、馮旗
    • Organizer
      2023年日本化学会中国四国支部大会山口大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 層状チタン酸ナノシートを用いた逆浸透膜の作製と性能評価2023

    • Author(s)
      中村梢絵、馮旗
    • Organizer
      第29回ヤングセラミスト・ミーティングin 中四国
    • Related Report
      2023 Annual Research Report
  • [Presentation] Development of Functional Nanomaterials Using Soft Chemical Process2023

    • Author(s)
      Qi Feng
    • Organizer
      International Symposium on Advanced Materials and their Applications 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Topochemical synthesis of Mn2O3/TiO2 and MnTiO3/TiO2 nanocomposites as lithium-ion battery anode with fast Li+ migration and giant pseudocapacitance2022

    • Author(s)
      Xing Wang, Qi Feng
    • Organizer
      第61回セラミックス基礎科学討論会
    • Related Report
      2022 Research-status Report
  • [Presentation] 多孔性層状チタン酸ナノシートを利用した多孔性膜の作製2022

    • Author(s)
      馮旗・姚 方毅・上村忍
    • Organizer
      日本セラミックス協会 第 35 回秋季シンポジウム
    • Related Report
      2022 Research-status Report
  • [Presentation] 強誘電性メソクリスタルナノ複合体の合成と圧電特性向上2022

    • Author(s)
      馮旗・張文雄・趙衛星
    • Organizer
      第60回セラミックス基礎科学討論会
    • Related Report
      2021 Research-status Report
  • [Presentation] Mesocrystalline Effect in NiTiO3/TiO2 Nanocomposite for Enhanced Capacity of Lithium-ion Battery Anode2022

    • Author(s)
      Xing Wang, Xingang Kong, Qi Feng
    • Organizer
      第60回セラミックス基礎科学討論会
    • Related Report
      2021 Research-status Report
  • [Presentation] Lithium-ion Battery Anode of Mesocrystalline CoTiO3/TiO2 Nanocomposite with Extremely Enhanced Capacity2021

    • Author(s)
      Xing Wang, Qi Feng
    • Organizer
      EJEA Conference 2021 in Kagawa
    • Related Report
      2021 Research-status Report

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

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