Oxygen mass transport across ionomer in polymer electrolyte fuel cells

聚合物电解质燃料电池中氧穿过离聚物的质量传输

• 批准号: 21550174
• 负责人: INABA Minoru
• 金额: $ 3.08万
• 依托单位: Doshisha University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21550174/
• 关键词: 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

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.

用铂微电极电化学方法研究了氧在膜和离聚物薄膜中的传质。碳氢化合物膜的透氧率远低于全氟膜。因此，氧渗透性的改善对于烃基离聚物是重要的。人们还发现，在氧渗透的厚度薄于500 nm的离聚物薄膜的速率决定步骤是在离聚物/气体界面处的氧溶解速率。

项目成果

微小電極を用いた高分子薄膜中の酸素透過率測定

使用微电极测量聚合物薄膜的透氧率

• 发表时间: 2010
• 作者: 岡田寛之;齋藤守弘;田坂明政;稲葉稔
• 通讯作者: 稲葉稔

Durability of Electrocatalysts in Polymer Electrolyte Fuel Cells

• DOI: 10.1149/1.3210608
• 发表时间: 2009-09
• 作者: M. Inaba

Oxygen Permeation in Nafion and Sulfonated Poly(ether ether ketone) Membranes

Nafion 和磺化聚醚醚酮膜中的氧气渗透

• 发表时间: 2011
• 作者: H. Okada;Y. Takamura;A. Tasaka and M. Inaba
• 通讯作者: A. Tasaka and M. Inaba

Oxygen Permeation in Nafion and Sulfonated Poly(ether ether ketone)Membranes

Nafion 和磺化聚醚醚酮膜中的氧气渗透

• 发表时间: 2009
• 作者: H.Okada;Y.Takamura;A.Tasaka;M.Inaba
• 通讯作者: M.Inaba