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Pore Network Engineering of Fuel Cell Catalyst Layers by Particle Nanostructuring Technology

Research Project

Project/Area Number 23K13590
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 27010:Transport phenomena and unit operations-related
Research InstitutionHiroshima University

Principal Investigator

Hirano Tomoyuki  広島大学, 先進理工系科学研究科(工), 助教 (40963674)

Project Period (FY) 2023-04-01 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2024: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2023: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords固体高分子形燃料電池 / 火炎噴霧熱分解法 / 火炎法 / 酸化物 / マクロポーラス粒子 / エアロゾル / 細孔制御 / 耐久性 / マクロ孔 / ナノ構造化 / マクロポーラス微粒子 / 気相燃焼合成法 / エアロゾルプロセス
Outline of Research at the Start

燃料電池技術のさらなる普及のために,固体高分子形燃料電池の活性と耐久性の向上が急務となっている。特に,燃料電池の耐久性向上のために,カーボンの代替材料として金属酸化物担体の開発が検討されており,カーボンを凌駕するガス拡散性と発電性能を付与させることが求められている。本研究では,触媒粒子をナノ構造化することによって微粒子形態を反映した細孔ネットワークを触媒層に形成し,燃料電池触媒として重要な因子であるガス拡散性と液体保持力・排出力を制御して,燃料電池としての耐久性と性能を向上させることを目的とする。

Outline of Final Research Achievements

This study aims to realize fuel cell catalysts with high durability and performance. To achieve this, the morphology of oxide supports was precisely controlled to create a suitable pore network within the catalyst layer, promoting gas diffusion and water removal. Oxide nanoparticle supports were synthesized via flame spray pyrolysis and used to construct macroporous particles. Such macroporous oxide supports were found to help preserve a well-connected pore network in the catalyst layer even after compression. In addition, proper use of binders allowed control over the mechanical durability of the macroporous particles and enabled optimization of the catalyst layer porosity.

Academic Significance and Societal Importance of the Research Achievements

本研究では,火炎を用いた独自の微粒子構造化技術を用いて,燃料電池用酸化物触媒担体の細孔ネットワーク制御を実施し,固体高分子形燃料電池の耐久性と性能の向上を実現した。特に,担体微粒子に緻密に設計した細孔構造を付与することにより,加圧プロセス後の触媒層の細孔構造を制御可能になった。これらの研究成果は,触媒層の細孔を制御することを目的として,電極触媒の粒子設計に関する新たな知見となる。

Report

(3 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • Research Products

    (34 results)

All 2025 2024 2023 Other

All Int'l Joint Research (1 results) Journal Article (9 results) (of which Peer Reviewed: 7 results,  Open Access: 1 results) Presentation (16 results) (of which Int'l Joint Research: 1 results) Book (2 results) Remarks (4 results) Patent(Industrial Property Rights) (2 results)

  • [Int'l Joint Research] Institut Teknologi Bandung/Institut Teknologi Sepuluh Nopember/University of Brawijaya(インドネシア)

    • Related Report
      2023 Research-status Report
  • [Journal Article] Conductive RuO2 binders enhance mechanical stability of macroporous Nb-SnO2 particles as cathode catalyst supports for high-performance PEFCs2025

    • Author(s)
      Ho Thi Thanh Nguyen、Hirano Tomoyuki、Takano Aoi、Miyasaka Syu、Tanabe Eishi、Maeda Makoto、Septiani Eka Lutfi、Cao Kiet Le Anh、Ogi Takashi
    • Journal Title

      RSC Applied Interfaces

      Volume: - Issue: 3 Pages: 795-807

    • DOI

      10.1039/d4lf00404c

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Flame Spray Pyrolysis Achieves Size-Tunable Niobium-doped Tin Oxide Nanoparticles for Improved Catalyst Performance in PEFCs2025

    • Author(s)
      Ho Thi Thanh Nguyen、Hirano Tomoyuki、Narui Ryosuke、Imaoka Shota、Takano Aoi、Miyasaka Syu、Tanabe Eishi、Septiani Eka Lutfi、Cao Kiet Le Anh、Ogi Takashi
    • Journal Title

      ACS Applied Energy Materials

      Volume: 8 Issue: 7 Pages: 4640-4647

    • DOI

      10.1021/acsaem.5c00266

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of annealing treatment on nanostructure and electrical conductivity of flame-made Ir-IrO2/TiO2 particles2024

    • Author(s)
      Ho Thi Thanh Nguyen、Hirano Tomoyuki、Narui Ryosuke、Tsutsumi Hiroshi、Kishi Miho、Yoshikawa Yusuke、Cao Kiet Le Anh、Ogi Takashi
    • Journal Title

      Advanced Powder Technology

      Volume: 35 Issue: 8 Pages: 104568-104568

    • DOI

      10.1016/j.apt.2024.104568

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Macroporous Structures of Nb-SnO2 Particles as a Catalyst Support Induce High Porosity and Performance in Polymer Electrolyte Fuel Cell Catalyst Layers2024

    • Author(s)
      Hirano Tomoyuki、Tsuboi Takama、Ho Thi Thanh Nguyen、Tanabe Eishi、Takano Aoi、Kataoka Mikihiro、Ogi Takashi
    • Journal Title

      Nano Letters

      Volume: 24 Issue: 34 Pages: 10426-10433

    • DOI

      10.1021/acs.nanolett.4c01150

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 噴霧乾燥によるセルロースナノファイバーの微粒子化、ナノ構造制御,機能化2024

    • Author(s)
      Nur Syakirah Nabilah Saipul Bahri, 時津 菜穂, 平野 知之, 荻 崇
    • Journal Title

      粉体工学会誌

      Volume: 61

    • Related Report
      2023 Research-status Report
  • [Journal Article] 2.2.6 Particle Generation by Spray Drying2023

    • Author(s)
      平野 知之、荻 崇
    • Journal Title

      Journal of the Society of Powder Technology, Japan

      Volume: 60 Issue: 8 Pages: 494-501

    • DOI

      10.4164/sptj.60.494

    • ISSN
      0386-6157, 1883-7239
    • Year and Date
      2023-08-10
    • Related Report
      2023 Research-status Report
  • [Journal Article] Flame-Made Ir-IrO2/TiO2 Particles as Anode Catalyst Support for Improved Durability in Polymer Electrolyte Fuel Cells2023

    • Author(s)
      Ho Thi Thanh Nguyen、Hirano Tomoyuki、Narui Ryosuke、Tsutsumi Hiroshi、Kishi Miho、Yoshikawa Yusuke、Cao Kiet Le Anh、Ogi Takashi
    • Journal Title

      ACS Applied Energy Materials

      Volume: 6 Issue: 11 Pages: 6064-6071

    • DOI

      10.1021/acsaem.3c00536

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Tubular flame synthesis of alumina particles: Effect of the addition of energetic materials to precursors2023

    • Author(s)
      Tomoyuki Hirano、Norito Kadowaki、Akira Ichimiya、Ryosuke Narui、Takashi Ogi
    • Journal Title

      Science and Technology of Energetic Materials

      Volume: 84 Issue: 3-4 Pages: 40-44

    • DOI

      10.34571/stem.84.3-4_40

    • ISSN
      0368-5977, 1347-9466, 2434-6322
    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Porosity Engineering of Pt-Loaded Nb-SnO2 Catalyst Layers in Polymer Electrolyte Fuel Cells2023

    • Author(s)
      Hirano Tomoyuki、Tsuboi Takama、Ho Thi Thanh Nguyen、Tanabe Eishi、Takano Aoi、Kataoka Mikihiro、Ogi Takashi
    • Journal Title

      ACS Applied Energy Materials

      Volume: 6 Issue: 24 Pages: 12364-12370

    • DOI

      10.1021/acsaem.3c02165

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Presentation] Macroporous Structures of Flame-made Nb-SnO2 Particle as a Catalyst Support Induce High Porosity and Performance in Fuel Cell Catalyst Layers2024

    • Author(s)
      Tomoyuki Hirano, Takashi Ogi
    • Organizer
      Expert Workshop on Nanoparticles Synthesis
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 微粒子のマクロポーラス構造を用いた燃料電池用 Pt/Nb-SnO2触媒層の空隙設計2024

    • Author(s)
      平野 知之, 高野 葵, 片岡 幹裕, 荻 崇
    • Organizer
      化学工学会第55回秋季大会
    • Related Report
      2024 Annual Research Report
  • [Presentation] Sb-SnO2ナノ粒子の火炎噴霧合成と光学特性2024

    • Author(s)
      時津 菜穂, 平野 知之, 荻 崇
    • Organizer
      化学工学会第55回秋季大会
    • Related Report
      2024 Annual Research Report
  • [Presentation] 火炎法によるSb-SnO2ナノ粒子の合成と近赤外線吸収特性評価2024

    • Author(s)
      時津 菜穂, 平野 知之, 荻 崇
    • Organizer
      第41回エアロゾル科学・技術研究討論会
    • Related Report
      2024 Annual Research Report
  • [Presentation] 固体高分子形燃料電池用Pt/Nb-SnO2触媒層の空隙設計2024

    • Author(s)
      平野 知之, 高野 葵, 片岡 幹裕, 荻 崇
    • Organizer
      化学工学会第89年会
    • Related Report
      2023 Research-status Report
  • [Presentation] One-Step Aerosol Synthesis of SiO2-Coated FeNi Particles by Using Swirler Connector-Assisted Spray Pyrolysis2024

    • Author(s)
      Eka Lutfi Septiani, Shunki Yamashita, Kiet Le Anh Cao, Tomoyuki Hirano, Nobuhiro Okuda, Hiroyuki Matsumoto, Yasushi Enokido, Takashi Ogi
    • Organizer
      化学工学会第89年会
    • Related Report
      2023 Research-status Report
  • [Presentation] Controlling the magnetical responsiveness of cellulose nanofiber particles embedded with iron oxide nanoparticles2024

    • Author(s)
      Nur Syakirah Nabilah Saipul Bahri, Tue Tri Nguyen, 平野 知之, 松本 恒平, 渡邊 真衣, 森田 祐子, 荻 崇
    • Organizer
      International chemical Engineering Symposium (IChES) 2024
    • Related Report
      2023 Research-status Report
  • [Presentation] Production of silica-coated FeNi particles via aerosol process assisted by a swirling flow2024

    • Author(s)
      Eka Lutfi Septiani, 平野 知之, 奥田 修弘, 松元 裕之, 荻 崇
    • Organizer
      International chemical Engineering Symposium (IChES) 2024
    • Related Report
      2023 Research-status Report
  • [Presentation] 火炎法による燃料電池用触媒担体IrOx/TiO2粒子の合成と発電特性評価2023

    • Author(s)
      鳴井 遼介,平野 知之,Ho Thi Thanh Nguyen,堤 裕司,岸 美保,吉川 裕亮,荻 崇
    • Organizer
      第40回エアロゾル科学・技術研究討論会
    • Related Report
      2023 Research-status Report
  • [Presentation] 火炎法によるZnO@TiO2コアシェル粒子の合成と耐酸性評価2023

    • Author(s)
      平野 知之,荻 崇
    • Organizer
      化学工学会第54回秋季大会
    • Related Report
      2023 Research-status Report
  • [Presentation] 三元触媒ナノ粒子のポーラス構造化と触媒性能評価2023

    • Author(s)
      山下 俊輝,Phong Hoai Le,Kiet Le Anh Cao,平野 知之,荻 崇
    • Organizer
      化学工学会第54回秋季大会
    • Related Report
      2023 Research-status Report
  • [Presentation] Ir-IrO2/TiO2担体を用いた燃料電池用触媒の開発と高電位耐久性評価2023

    • Author(s)
      鳴井 遼介,平野 知之,Ho Thi Thanh Nguyen,堤 裕司,岸 美保,吉川 裕亮,荻 崇
    • Organizer
      化学工学会第54回秋季大会
    • Related Report
      2023 Research-status Report
  • [Presentation] 火炎法によるIr/TiO2粒子の合成と固体高分子形燃料電池への応用2023

    • Author(s)
      鳴井 遼介,平野 知之,Ho Thi Thanh Nguyen,堤 裕司,岸 美保,吉川 裕亮,荻 崇
    • Organizer
      粉体工学会2023年度秋期研究発表会
    • Related Report
      2023 Research-status Report
  • [Presentation] 火炎法による組成を制御した球状ガラス粒子の合成2023

    • Author(s)
      房谷 航大,平野 知之,水谷 和揮,加藤 貴久,荻 崇
    • Organizer
      粉体工学会2023年度秋期研究発表会
    • Related Report
      2023 Research-status Report
  • [Presentation] 三元触媒ナノ粒子のポーラス構造化と触媒性能評価2023

    • Author(s)
      山下 俊輝,Phong Hoai Le,Kiet Le Anh Cao,平野 知之,荻 崇
    • Organizer
      粉体工学会2023年度秋期研究発表会
    • Related Report
      2023 Research-status Report
  • [Presentation] セルロースナノファイバー構成微粒子の架橋剤による耐水性の向上2023

    • Author(s)
      Nur Syakirah Nabilah Saipul Bahri,Tue Tri Nguyen,平野 知之,松本 恒平,渡邊 真衣,森田 祐子,荻 崇
    • Organizer
      粉体工学会2023年度秋期研究発表会
    • Related Report
      2023 Research-status Report
  • [Book] 分散・凝集ハンドブック2025

    • Author(s)
      平野 知之,荻 崇
    • Total Pages
      536
    • Publisher
      株式会社エヌ・ティー・エス
    • Related Report
      2024 Annual Research Report
  • [Book] 造粒プロセスの最適化と設計・操作事例集 セルロースナノファイバーの微粒子化2023

    • Author(s)
      荻 崇, Nur Syakirah Nabilah Saipul Bahri, 平野 知之 (分担執筆)
    • Total Pages
      576
    • Publisher
      (株)技術情報協会
    • Related Report
      2023 Research-status Report
  • [Remarks] 平野知之個人HP

    • URL

      https://tomoyukihirano.com

    • Related Report
      2024 Annual Research Report
  • [Remarks] Thermal Fluid Materials Engineering Laboratory

    • URL

      https://www.hu-tme.com

    • Related Report
      2024 Annual Research Report
  • [Remarks] 平野知之個人HP

    • URL

      https://tomoyukihirano.com/

    • Related Report
      2023 Research-status Report
  • [Remarks] Thermal Fluid Materials Engineering Laboratory

    • URL

      https://www.hu-tme.com/

    • Related Report
      2023 Research-status Report
  • [Patent(Industrial Property Rights)] 導電性金属酸化物粒子及び電気化学反応用触媒粒子2023

    • Inventor(s)
      高野 葵,片岡 幹裕,荻 崇,平野 知之
    • Industrial Property Rights Holder
      高野 葵,片岡 幹裕,荻 崇,平野 知之
    • Industrial Property Rights Type
      特許
    • Filing Date
      2023
    • Acquisition Date
      2025
    • Related Report
      2024 Annual Research Report
  • [Patent(Industrial Property Rights)] 導電性金属酸化物粒子及び電気化学反応用触媒粒子2023

    • Inventor(s)
      平野 知之,荻 崇 他
    • Industrial Property Rights Holder
      平野 知之,荻 崇 他
    • Industrial Property Rights Type
      特許
    • Filing Date
      2023
    • Related Report
      2023 Research-status Report

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Published: 2023-04-13   Modified: 2026-01-16  

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