Oxygen mass transport across ionomer in polymer electrolyte fuel cells

• Project/Area Number: 21550174
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Functional materials/Devices
• Research Institution: Doshisha University
• Principal Investigator: INABA Minoru 同志社大学, 理工学部, 教授 (80243046)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2009: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
• Keywords: 電池 / 燃料電池 / 物性実験 / イオン交換膜 / ガス拡散 / 酸素還元 / イオノマー / 物質移動 / 耐久性

Research Abstract

Oxygen mass transport across membranes and ionomer thin films was investigated by electrochemical methods using platinum microelectrodes. The oxygen permeability in hydrocarbon membranes was much lower than that in perfluorinated membrane. Hence an improvement of oxygen permeability is important for hydrocarbon-based ionomers. It was also found that the rate-determining step in oxygen permeation across ionomer thin films of thickness thinner than 500 nm is the rate of oxygen dissolution at the ionomer/gas interface.

Research Products

• [Journal Article] Durability of Electrocatalysts in Polymer Electrolyte Fuel Cells (2009)
  • Author(s): M. Inaba
  • Journal Title: ECS Transactions Volume: Vol.25, No.1 Pages: 573-581
  • Peer Reviewed
• [Journal Article] Durability of Electrocatalysts in Polymer Electrolyte Fuel Cells (2009)
  • Author(s): M.Inaba
  • Journal Title: ECS Transactions 25(1) Pages: 573-581
  • Peer Reviewed
• [Presentation] Oxygen Permeation in Nafion and Sulfonated Poly(ether ether ketone) Membranes (2011)
  • Author(s): H. Okada, Y. Takamura, A. Tasaka and M. Inaba
  • Organizer: The 216th Meeting of The Electrochemical Society
  • Place of Presentation: ウィーン国際会議場(オーストリア)
  • Year and Date: 2011-10-06
• [Presentation] 微小電極を用いた高分子薄膜中の酸素透過率測定 (2010)
  • Author(s): 岡田寛之, 齋藤守弘, 田坂明政, 稲葉稔
  • Organizer: 第51回電池討論会
  • Place of Presentation: ウィンク愛知(名古屋)
  • Year and Date: 2010-10-11
• [Presentation] Oxygen Permeation in Nafion and Sulfonated Poly(ether ether ketone)Membranes (2009)
  • Author(s): H.Okada, Y.Takamura, A.Tasaka, M.Inaba
  • Organizer: The 216th Meeting of The Electrochemical Society
  • Place of Presentation: オーストリア、ウィーン ウィーン国際会議場
  • Year and Date: 2009-10-06
• [Remarks]
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• [Remarks]
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• [Remarks]
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• [Remarks]
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