Surface modification of metal nanoparticles by high energy ion beam for applications to fuel-cell catalysts

• Project/Area Number: 20760600
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Nuclear engineering
• Research Institution: Japan Atomic Energy Agency
• Principal Investigator: YAMAKI Tetsuya Japan Atomic Energy Agency, 量子ビーム応用研究部門, 研究副主幹 (10354937)
• Project Period (FY): 2008 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2008: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
• Keywords: イオンビーム / 電子励起効果 / 金属ナノ微粒子 / 酸素還元触媒 / 燃料電池 / 表面改質 / サイクリックボルタモグラム / 回転ディスク電極法

Research Abstract

Metal nanoparticles were prepared on a glassy carbon plate by a sputtering method and then irradiated with high energy ion beams at room temperature. The nanoparticles would be modified by 0.38 MeV proton (H^+) beam-induced electronic excitation so that they have a higher surface activity. The mechanism of this irradiation effect seems to be rather complicated, but it can be discussed in relation to a change in the interfacial crystal structure during the irradiation.

Research Products

• [Journal Article] Ion Beam Modification of Pt Electrocatalyst Nanoparticles for Polymer Electrolyte Fuel Cells (2010)
  • Author(s): T. Yamaki, S. Yamamoto, T. Hakoda, H. Koshikawa
  • Journal Title: Mater. Res. Soc. Symp. Proc 1217
  • Peer Reviewed
• [Journal Article] A Versatile Tool for Developing Polymer Electrolyte Fuel-Cell Membranes (2010)
  • Author(s): T. Yamaki, Quantum Beam Technology
  • Journal Title: J. Power Sources 195 Pages: 5848-5855
  • Peer Reviewed
• [Journal Article] Ion Beam Modification of Pt Electrocatalyst Nanoparticles for Polymer Electrolyte Membrane Fuel Cells (2010)
  • Author(s): T.Yamaki et al.
  • Journal Title: Materials Research Society Symposium Proceedings 1217
  • Peer Reviewed
• [Journal Article] Fuel-Cell Performance of Multiply-Crosslinked Polymer Electrolyte Membranes Prepared by Two-Step Radiation Process (2009)
  • Author(s): T. Yamaki, S. Sawada, M. Asano, Y. Maekawa, M. Yoshida, L. Gubler, S. Alkan-Gursel, G.G. Scherer
  • Journal Title: ECS Transactions 25 Pages: 1439-1450
  • Peer Reviewed
• [Journal Article] Enhancement of Etch Rate for Preparation of Nano-Sized Ion-Track Membranes of Poly(vinylidene fluoride): Effect of Pretreatment and High-LET Beam Irradiation (2009)
  • Author(s): R. Rosiah, T. Yamaki, H. Koshikawa, S. Takahashi, S. Hasegawa, M. Asano, Y. Maekawa, K. -O. Voss, C. Trautmann, R. Neumann
  • Journal Title: Nucl. Instrum. Meth. B 267 Pages: 554-557
  • Peer Reviewed
• [Journal Article] Cross-Linker Effect in ETFE-Based Radiation-Grafted Proton-Conducting Membranes (2009)
  • Author(s): H. Ben yousef, L. Gubler, T. Yamaki, S. Sawada, S. Alkan-Gursel, A. Wokaun, G.G. Scherer
  • Journal Title: J. Electrochem. Soc 156
  • Peer Reviewed
• [Journal Article] Fuel-Cell Performance of Multiply-Crosslinked Polymer Electrolyte Membranes Prepared by Two-Step Radiation Process (2009)
  • Author(s): T.Yamaki et al.
  • Journal Title: ECS Transactions 25 Pages: 1439-1450
  • Peer Reviewed
• [Journal Article] Enhancement of etch rate for preparation of nano-sized ion-track membranes of poly(vinylidene fluoride) : Effect of pretreatment and high-LET beam irradiation (2009)
  • Author(s): R. Rosiah, T. Yamaki, et al.
  • Journal Title: Nuclear Instruments and Methods in Physics Research Section B 267 Pages: 554-557
  • Peer Reviewed
• [Journal Article] Cross-linker effect in ETFE-based radiation-grafted proton-conducting membranes (2009)
  • Author(s): H. Ben youcef, L. Gubler, T. Yamaki, et al
  • Journal Title: Journal of the Electrochemical Society 156
  • Peer Reviewed
• [Journal Article] Preparation of Anisotropically Proton-Conductive Materials Based on Poly(vinylidene fluoride) ion track membranes (2008)
  • Author(s): T. Yamaki, M. Asano, H. Koshikawa, Y. Maekawa, R. Neumann, C. Trautmann, K. -O. Voss
  • Journal Title: GSI Scientific Report 341
  • Peer Reviewed
• [Journal Article] Preparation of anisotropically proton-conductive materials based on poly(vinylidene fluoride) ion track membranes (2008)
  • Author(s): T. Yamaki, et al.
  • Journal Title: GSI Scientific Report Pages: 341-341
  • Peer Reviewed
• [Journal Article] Quantum Beam Technology : A Versatile Tool for Developing Polymer Electrolyte Fuel-Cell Membranes
  • Author(s): T.Yamaki
  • Journal Title: Journal of Power Sources (印刷中)
  • Peer Reviewed
• [Presentation] A Versatile Tool for Developing Polymer Electrolyte Fuel-Cell Membranes (2009)
  • Author(s): T. Yamaki, Quantum Beam Technology
  • Organizer: 4th International Conference on Polymer Batteries and Fuel Cells (PBFC2009)
  • Place of Presentation: Yokohama Symposia (Yokohama, Japan)
  • Year and Date: 2009-08-05
• [Presentation] Quantum Beam Technology : A Versatile Tool for Developing Polymer Electrolyte Fuel-Cell Membranes (2009)
  • Author(s): T.Yamaki
  • Organizer: 4th International Conference on Polymer Batteries and Fuel Cells(PBFC2009)
  • Place of Presentation: 横浜シンポジア(神奈川県横浜市)
  • Year and Date: 2009-08-05
• [Presentation] 高エネルギー重イオンビームによる燃料電池用ナノ構造制御電解質膜の開発 (2008)
  • Author(s): 八巻徹也、浅野雅春、小林美咲、野村久美子、高木繁治、前川康成、吉田勝
  • Organizer: 第10回応用加速器・関連技術研究シンポジウム
  • Place of Presentation: 東京工業大学百年記念館(東京)
  • Year and Date: 2008-06-12
• [Presentation] 高エネルギー重イオンビームによる燃料電池用ナノ構造制御電解質膜の開発 (2008)
  • Author(s): 八巻徹也, ら
  • Organizer: 第10回応用加速器・関連技術研究シンポジウム
  • Place of Presentation: 東京工業大学(東京)
  • Year and Date: 2008-06-12
• [Book] Current Developments of Radiation-Induced Graft in Membranes (2009)
  • Author(s): T. Yamaki, et al.
  • Total Pages: 49
  • Publisher: Research Signpost
• [Book] Current Developments of Radiation-Induced Graft in Membranes (2008)
  • Author(s): T. Yamaki, M. Asano, M. Yoshida
  • Publisher: Research Signpost
• [Patent(Industrial Property Rights)] 燃料電池用電解質膜及びその製造方法 (2008)
  • Inventor(s): 小林美咲、八巻徹也、浅野雅春、吉田勝、前川康成
  • Industrial Property Rights Holder: 小林美咲、八巻徹也、浅野雅春、吉田勝、前川康成
  • Filing Date: 2008-12-10
• [Patent(Industrial Property Rights)] 多孔質酸化チタン薄膜とその製造方法 (2008)
  • Inventor(s): 八巻徹也、伊藤久義、篠原竜児、浅井圭介、阿部弘亨、土方泰斗、矢口裕之
  • Industrial Property Rights Holder: 八巻徹也、伊藤久義、篠原竜児、浅井圭介、阿部弘亨、土方泰斗、矢口裕之
  • Filing Date: 2008-06-18
• [Patent(Industrial Property Rights)] 燃料電池用電解質膜及びその製造方法 (2008)
  • Inventor(s): 小林美咲, 八巻徹也, ら
  • Industrial Property Rights Holder: 日本原子力研究開発機構, 他
  • Filing Date: 2008-12-10
  • Overseas
• [Patent(Industrial Property Rights)] 多孔質酸化チタン薄膜とその製造方法 (2008)
  • Inventor(s): 八巻徹也, ら
  • Industrial Property Rights Holder: 日本原子力研究開発機構, 他
  • Acquisition Date: 2008-06-18