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Cultivation of bottom-up preparation method for size-regulated nanocomposites with zero-valent rare-earth metals

Research Project

Project/Area Number 21K18978
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 34:Inorganic/coordination chemistry, analytical chemistry, and related fields
Research InstitutionNagoya University

Principal Investigator

Muratsugu Satoshi  名古屋大学, 理学研究科, 准教授 (20545719)

Project Period (FY) 2021-07-09 – 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 2022: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2021: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Keywords合金ナノ粒子 / 白金 / 希土類金属 / 多孔性炭素担体 / 白金錯体 / 希土類金属錯体 / TEM / 酸素還元反応 / ナノ構造体 / 合金 / 構造制御 / 触媒
Outline of Research at the Start

本研究では、容易に酸化され0価の金属状態を取ることが難しく、ナノ構造体の構築が容易ではない希土類(ランタノイド、Ln)金属に着目し、新規0価Ln金属・合金ナノ構造体のボトムアップ創製法の開拓を世界に先駆けて目指す。金属酸化物を経由せずに特異的な構造や金属組成を持つ新規0価Ln金属・合金ナノ構造体を調製する新規手法の確立に取り組むとともに、得られたナノ構造体の新規機能物性開拓 (例:高活性燃料電池電極触媒等) を目指す。

Outline of Final Research Achievements

The aim of this research is to investigate the bottom-up preparation method and properties of zero-valent lanthanide (Ln) metal nanocomposites, and the preparation of size-regulated, single-phase platinum (Pt) and zero-valent Ln alloy nanoparticles (NPs) was particularly focused on. By introducing two methods (1) the usage of Pt and Ln metal complex without O atoms to suppress the formation of Ln oxides, and (2) the usage of mesoporous carbon support to regulate the NP size, and Pt-La/Gd alloy NPs of narrow size distributions were selectively prepared, whose structures were characterized by XRD, TEM, HAADF-STEM-EDS, XAFS, and XPS. The catalytic oxygen reduction reaction activity of the prepared Pt-Ln and Pt-Gd NPs were found out to be larger than those of Pt nanoparticles of similar size distributions, respectively.

Academic Significance and Societal Importance of the Research Achievements

本研究で開発した粒径分布を抑制したPt-Ln合金ナノ粒子の調製手法は、遷移金属はPtに限ることなく、希土類金属はLa, Gdに限ることなく適用可能な汎用性の広い手法であり、未知の組成、構造の合金ナノ粒子材料を生み出すことが期待される。今回調製に成功したPt-Ln合金ナノ粒子は、酸素還元反応高活性化の因子解明も踏まえて、高活性・高耐久性電極触媒調製に向けての設計指針提供が可能と期待される。燃料電池電極触媒への展開が実現できれば、貴金属/希土類金属の有効利用、エネルギーの有効利用に資することが期待でき、地球環境問題の解決にも大きく貢献する。

Report

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

    (12 results)

All 2023 2022 Other

All Int'l Joint Research (1 results) Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results) Presentation (9 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Int'l Joint Research] Universtity of Munster(ドイツ)

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Creation of Supported Metal Complex, Metal Nanoparticle, and Metal Oxide Catalysts and Operando Synchrotron Radiation X-ray Analyses2022

    • Author(s)
      邨次 智、唯美津木
    • Journal Title

      Vacuum and Surface Science

      Volume: 65 Issue: 5 Pages: 230-235

    • DOI

      10.1380/vss.65.230

    • ISSN
      2433-5835, 2433-5843
    • Year and Date
      2022-05-10
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Coordination-Induced Trigger for Activity: N-Heterocyclic Carbene-Decorated Ceria Catalysts Incorporating Cr and Rh with Activity Induction by Surface Adsorption Site Control2022

    • Author(s)
      Ikemoto Satoru、Muratsugu Satoshi、Koitaya Takanori、Tsuji Yuta、Das Mowpriya、Yoshizawa Kazunari、Glorius Frank、Tada Mizuki
    • Journal Title

      Journal of the American Chemical Society

      Volume: 145 Issue: 3 Pages: 1497-1504

    • DOI

      10.1021/jacs.2c07290

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] NHC修飾による複合酸化物表面上の金属ナノクラスターの触媒活性発現2023

    • Author(s)
      池本悟, 邨次智, 小板谷貴典, 辻雄太, Mowpriya Das, 吉澤一成, Frank Glorius, 唯美津木
    • Organizer
      2022年度名古屋大学シンクロトロン光研究センターシンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] Preparation and Oxygen Reduction Reaction Performances of Pt-Gd Alloy Nanoparticle Catalyst on a Porous Carbon Support2023

    • Author(s)
      Takumi Moriyama, Mitsuhiko Sato, Satoshi Muratsugu, Mizuki Tada
    • Organizer
      日本化学会 第103春季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Preparation of Atomically Dispersed Ruthenium and Copper Oxide Incorporated Ceria Catalyst and its Ammoxidation Performances of Aliphatic Alcohols2023

    • Author(s)
      Chaoqi Chen, Satoshi Muratsugu, Mizuki Tada
    • Organizer
      日本化学会 第103春季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Preparation and Electrocatalytic Oxygen Reduction Performances of Size-controlled Pt Nanoparticle Catalysts Decorated with Polypyrrole Polymers and Lanthanide Hydroxides2022

    • Author(s)
      Satoshi Muratsugu, Kentaro Ichihashi, Mizuki Tada
    • Organizer
      The 19th International Symposium on Relations between Homogeneous and Heterogeneous Catalysis (ISHHC19)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 有機金属錯体を前駆体とした白金-ガドリニウム合金ナノ粒子触媒の調製2022

    • Author(s)
      森山拓海, 佐藤光彦, 邨次智, 唯美津木
    • Organizer
      錯体化学会第72回討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Preparation and Selective Oxidation Performances of Rutile-type IrO2 Nanoparticle Catalysts2022

    • Author(s)
      Satoshi Muratsugu, Takatoshi Sudoh, Daichi Itoh, Chaoqi Chen, Satoru Ikemoto, Mizuki Tada
    • Organizer
      錯体化学会第72回討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Preparation of Surface-Attached Chiral Vanadium Complexes with Chiral Amido Ligands on Silica2022

    • Author(s)
      Misaki Inagaki, Keiko Hibi, Sora Shirai, Satoshi Muratsugu, Mizuki Tada
    • Organizer
      錯体化学会第72回討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Low-temperature Redox and Catalytic Performances of Cr and Rh-incorporated Cerium Oxides2022

    • Author(s)
      Satoshi Muratugu
    • Organizer
      International Congress on Pure and Applied Chemistry (ICPAC) Kotakinabalu 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 有機金属錯体を前駆体とした白金-ガドリニウム合金ナノ粒子の創製の検討2022

    • Author(s)
      森山 拓海、佐藤 光彦、邨次 智、唯 美津木
    • Organizer
      第102回日本化学会年会
    • Related Report
      2021 Research-status Report

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Published: 2021-07-13   Modified: 2025-03-27  

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