Investigation of problems at the PEFC cathode layer under higher temperature operation

Hidemasa Miyamoto, Masahiko Kitamura, Zhiyun Noda, Kazunari Sasaki, Akari Hayashi

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

1 被引用数 (Scopus)

抄録

Toward the development of electrocatalysts for future higher temperature PEFCs, extraction of critical issues for higher temperature PEFCs was aimed. Degradation phenomena and mechanisms at 105°C were evaluated for both Aquivion® MEA and Nafion® MEA. The correlation between proton conductivity and changes in cathode structures on the acceleration degradation test was studied in detail. As a result, even though the macroporous structure of the cathode layer was homogeneous in Aquivion® MEA, larger pores almost intensely formed near the Nafion® membrane side. We have found that the carbon oxidation reaction is deeply related to H2O produced by a fuel cell reaction if it is under the low humidification condition. Therefore, when proton conductivity is low like Nafion® MEA, H2O is mainly generated at the interface between the cathode layer and Nafion® membrane and carbon oxidation intensely occurs at the interface.

本文言語英語
ホスト出版物のタイトルPolymer Electrolyte Fuel Cells 16, PEFC 16
編集者D. J. Jones, H. Uchida, H. A. Gasteiger, K. Swider-Lyons, F. N. Buchi, P. N. Pintauro, B. S. Pivovar, K. E. Ayers, K. A. Perry, P. Shirvanian, A. Z. Weber, V. K. Ramani, P. Strasser, R. A. Mantz, K. Shinohara, S. Mitsushima, C. Coutanceau, J. M. Fenton, T. J. Schmidt, T. F. Fuller, S. R. Narayanan, Y. T. Kim, L. Zhuang, S. G. Sun
出版社Electrochemical Society Inc.
ページ329-337
ページ数9
14
ISBN(電子版)9781607687313, 9781607687672, 9781607687689, 9781607687696, 9781607687702, 9781607687719, 9781607687726, 9781607687733, 9781607687740, 9781607687757, 9781607687771, 9781607687788, 9781607687795, 9781607687801, 9781607687818, 9781607687825, 9781607687832, 9781607687849, 9781607687856, 9781607687863, 9781607687887, 9781607687894, 9781607687900, 9781607687917, 9781607687924, 9781607687931, 9781607687948, 9781607687955, 9781607687962, 9781607687979, 9781607687986, 9781607687993, 9781607688006, 9781607688013, 9781607688020, 9781607688037
DOI
出版ステータス出版済み - 2016
イベントSymposium on Polymer Electrolyte Fuel Cells 16, PEFC 2016 - PRiME 2016/230th ECS Meeting - Honolulu, 米国
継続期間: 10月 2 201610月 7 2016

出版物シリーズ

名前ECS Transactions
番号14
75
ISSN(印刷版)1938-6737
ISSN(電子版)1938-5862

その他

その他Symposium on Polymer Electrolyte Fuel Cells 16, PEFC 2016 - PRiME 2016/230th ECS Meeting
国/地域米国
CityHonolulu
Period10/2/1610/7/16

!!!All Science Journal Classification (ASJC) codes

  • 工学(全般)

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