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Formation of interfacial stress-induced unprecedented ordered alloy nanoparticles and exploration of their structure-specific properties

Research Project

Project/Area Number 19K22231
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 36:Inorganic materials chemistry, energy-related chemistry, and related fields
Research InstitutionKyoto University

Principal Investigator

Teranishi Toshiharu  京都大学, 化学研究所, 教授 (50262598)

Project Period (FY) 2019-06-28 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2020: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2019: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Keywordsナノ材料 / パラジウム / 鉄 / 第三元素 / 規則化合金相 / Z3構造 / 磁気特性 / 規則化合金 / 合金ナノ粒子 / 規則化相 / 界面応力 / 軽元素
Outline of Research at the Start

本研究では、ナノコンポジット磁石開発時に不純物金属相の界面応力により偶発的に得られたP4/mmm空間群を基礎とした新奇FePd3規則化合金相の形成メカニズムを解明し、新奇規則化合金相が発現する構造特異物性を評価するとともに、未踏規則化合金材料群の設計指針を提案する。ターゲット材料として立方体形状単結晶Pdナノ粒子を用い、一連のFePdx@Mコアシェルナノ粒子(M:Cd、In、Pb)の精密合成・構造解析を行った後、Mシェルを溶解したFePdxナノ粒子の軽元素(H、B、C)吸蔵特性および磁気特性を検討する。また、この形成メカニズムを他の系に応用展開し、未知の規則化合金材料群の設計指針を提案する。

Outline of Final Research Achievements

The purpose of this study was to clarify the formation mechanism and the structure-specific properties of a novel FePd3 ordered alloy phase based on the P4/mmm space group and propose a design guideline for an unprecedented ordered alloy nanomaterials. We succeeded in synthesizing the Z3-Fe(Pd,In)3 phase and the Pt-Ir-Fe alloy phase possessing the intermediate structure between the isotropic L12 and the anisotropic L10 structure. It was demonstrated that the novel crystal phases obtained by our method have interesting crystal structures and physical properties that are not found in the nanoparticles obtained by the one-step synthesis. In particular, the anisotropic functions based on the anisotropic crystal structures of inorganic materials are extremely interesting from the viewpoint of creating high-performance and high-efficiency catalytic and magnetic materials.

Academic Significance and Societal Importance of the Research Achievements

本研究で合成されたZ3-Fe(Pd,In)3ナノ粒子は、等方性L12構造にはない高い酸素還元能および磁気特性を有していることが明らかとなっている。特に、異方性規則化合金ナノ粒子は、(111)面の異方性二次元歪みにより、非常に高い酸素還元触媒特性を示す可能性が高く、固体高分子質型燃料電池のカソード触媒への展開が期待される。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (12 results)

All 2023 2022 2021 2019 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (8 results) (of which Int'l Joint Research: 4 results,  Invited: 6 results) Remarks (2 results)

  • [Journal Article] Stabilization of unprecedented crystal phases of metal nanomaterials2023

    • Author(s)
      Matsumoto Kenshi、Sato Ryota、Teranishi Toshiharu
    • Journal Title

      Trends in Chemistry

      Volume: 5 Issue: 3 Pages: 201-213

    • DOI

      10.1016/j.trechm.2022.12.011

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Inter-element miscibility driven stabilization of ordered pseudo-binary alloy2022

    • Author(s)
      Matsumoto Kenshi, Sato Ryota, Tatetsu Yasutomi, Takahata Ryo, Yamazoe Seiji, Yamauchi Miho, Inagaki Yuji, Horibe Yoichi, Kudo Masaki, Toriyama Takaaki, Auchi Mitsunari, Haruta Mitsutaka, Kurata Hiroki, Teranishi Toshiharu
    • Journal Title

      Nature Communications

      Volume: 13 Issue: 1 Pages: 1047-1047

    • DOI

      10.1038/s41467-022-28710-0

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] New Class of Plasmonic Alloy Nanoparticles2022

    • Author(s)
      Toshiharu Teranishi
    • Organizer
      The 13th Asia-Pacific Conference on Near-Field Optics (APNFO13)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 元素置換による可視-近赤外プラズモンナノ材料の開拓2022

    • Author(s)
      寺西利治
    • Organizer
      2022光化学討論会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Synthesis of Near Infrared Plasmonic Nanoparticles for Hydrogen Evolution2022

    • Author(s)
      Toshiharu Teranishi
    • Organizer
      Conference on Advanced in Catalysis for Energy and Environment (CACEE 2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 可視-近赤外光に応答するプラズモニックナノ粒子2022

    • Author(s)
      寺西利治
    • Organizer
      第23回プラズモニック化学シンポジウム
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] ナノ元素置換科学:未踏構造ナノ粒子の合成と構造特異機能2021

    • Author(s)
      寺西利治
    • Organizer
      光・量子デバイス研究会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Nanoscale Element Replacement Science: Structural Transformation of Nanocrystalline Phases and Development of Novel Functions2021

    • Author(s)
      Toshiharu Teranishi
    • Organizer
      Seminar on Low-dimensional Physics and Devices
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 微量第三元素の固溶性を駆動力とした新奇規則合金の形成2019

    • Author(s)
      松本憲志
    • Organizer
      ナノ学会第17回大会
    • Related Report
      2019 Research-status Report
  • [Presentation] First Synthesis of Mille-Feuille FePd3 Framework by the Introduction of a Third Element2019

    • Author(s)
      Kenshi Matsumoto
    • Organizer
      Okinawa Colloids 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Remarks] Teranishi Laboratory

    • URL

      https://www.scl.kyoto-u.ac.jp/~teranisi/

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
  • [Remarks] 寺西研

    • URL

      https://www.scl.kyoto-u.ac.jp/~teranisi/

    • Related Report
      2020 Research-status Report 2019 Research-status Report

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Published: 2019-07-04   Modified: 2024-01-30  

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