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Mass Production and Property of Two-Dimensional Magnetic Nanosheets

Research Project

Project/Area Number 21K04655
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 26020:Inorganic materials and properties-related
Research InstitutionKeio University

Principal Investigator

Yamamoto Takashi  慶應義塾大学, 理工学部(矢上), 准教授 (40532908)

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: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords磁性 / ナノシート / 電気化学 / 磁気特性 / 電気伝導度 / 磁性ナノシート / 磁気物性
Outline of Research at the Start

厚みが数nm程度に対して横サイズが数μmに及ぶ超異方的2次元結晶の総称である無機ナノシートは次世代エレクトロニクス・スピントロニクスの基幹材料として有望視されている。本研究課題では、磁性体ナノシートの大量合成手法を確立することによって磁性パラメーターを実験的に獲得し、2次元磁性体の本質に迫ることを目的とする。具体的には、酸素や水に対して比較的耐性があり、磁気転移温度が比較的高い2次元磁性体であるFe3GeTe2, MPS3 (M: 遷移金属イオン) を探索対象とする。

Outline of Final Research Achievements

In this research project, I focused on two-dimensional magnetic materials that are potentially applied in the field of spintronics, aiming to establish a mass production protocol for nanosheets and obtain magnetic parameters. Regarding the mass production of FePS3 layered crystals, I could not find synthesis conditions that completely excluded impurities throughout the entire sample. Additionally, regarding the nanosheet preparation of FePS3 layered crystals, I found that nanosheets with a thickness of 5 nm and a lateral size of approximately 100 nm could be obtained utilizing electrochemical reactions. Furthermore, through international collaboration, we discovered that nanosheet of Fe-based metal-organic frameworks dramatically improves the photocatalytic ability of CO2.

Academic Significance and Societal Importance of the Research Achievements

本研究課題においては、「無機ナノシートが真に次世代エレクトロニクスを支える基幹物質となりうるか」を命題に掲げ、2次元磁性体がスピントロニクス分野への応用に資する物質群であるかどうかを検討した。2次元磁性体であるFePS3層状結晶の大量合成に関しては、不純物を全く含まないサンプルを得ることはできなかったが、ナノシート化に関しては、電気化学反応を利用することによって、比較的簡便な操作でナノシート分散液が得られることがわかった。以上のように、引き続き詳細に条件検討を進める余地はあるものの、学術的・産業的に重要な知見を得たことは、今後の学際領域研究の発展に対して寄与するところが少なくないと言える。

Report

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

    (10 results)

All 2024 2023 2022 2021 Other

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

  • [Int'l Joint Research] Changzhou University/Tianjin University of Technology/Qufu Normal University(中国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Changzhou University/Tianjin University of Technology/Qufu Normal University(中国)

    • Related Report
      2022 Research-status Report
  • [Journal Article] Spin Manipulation in a Metal-Organic Layer through Mechanical Exfoliation for Highly Selective CO2 Photoreduction2023

    • Author(s)
      Wu Dayu、Yin Hua‐Qing、Wang Zeshi、Zhou Mingren、Yu Chengfeng、Wu Jing、Miao Huixian、Yamamoto Takashi、Zhaxi Wenjiang、Huang Zetao、Liu Luying、Huang Wei、Zhong Wenhui、Einaga Yasuaki、Jiang Jun、Zhang Zhi‐Ming
    • Journal Title

      Angewandte Chemie International Edition

      Volume: - Issue: 18

    • DOI

      10.1002/anie.202301925

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Fabrication and electrochemical properties of boron-doped SiC2021

    • Author(s)
      Uchiyama Kazuki、Yamamoto Takashi、Einaga Yasuaki
    • Journal Title

      Carbon

      Volume: 174 Pages: 240-247

    • DOI

      10.1016/j.carbon.2020.12.017

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] さまざまな処理により終端変化させたダイヤモンド電極表面の評価2024

    • Author(s)
      津田 裕紀、山本 崇史、栄長 泰明
    • Organizer
      日本化学会第104春季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Surface-Modified Boron-Doped Diamond for Electrochemical Application2023

    • Author(s)
      Takashi Yamamoto, Yasuaki Einaga
    • Organizer
      10th German-Japanese Symposium on Electrosynthesis (GJSE-10)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Heterostructured 2D Magnetic Materials2022

    • Author(s)
      Yamamoto Takashi
    • Organizer
      3rd Workshop on Nanotechnologies for 21st Century: Cooperation Event between Albania, Japan, and Spain
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Functionalization of Solid Surface: From Magnetic to Electrode Materials2022

    • Author(s)
      Yamamoto Takashi、Einaga Yasuaki
    • Organizer
      Electrochemistry 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 異種ナノシート集積膜の磁気特性2022

    • Author(s)
      山本崇史
    • Organizer
      日本化学会第102春季年会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] ヘテロ構造化ナノシートの光・磁気機能2021

    • Author(s)
      山本崇史
    • Organizer
      第80回スピントロニクス専門研究会
    • Related Report
      2021 Research-status Report
    • Invited

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

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