Gas diffusion layer coated with a microporous layer containing hydrophilic CNTs to enhance PEFC performance without humidification using anode gas recirculation

T. Kitahara, H. Nakajima, K. Ishikawa

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

4 被引用数 (Scopus)

抄録

The present study was carried out to clarify the effect of anode gas recirculation on PEFC performance without humidification. Raising the gas flow velocity in the channel to 2 m s-1 by increasing the anode gas recirculation promotes water transport from the anode gas to the membrane. Decreasing the pore diameter of a microporous layer (MPL)-coated gas diffusion layer (GDL) at the cathode is effective at preventing membrane dehydration, which enhances PEFC performance without humidification. However, decreasing the MPL pore diameter significantly increases the water breakthrough pressure, reducing the ability of the MPL to reduce the flooding under high humidity conditions. When using an MPL containing hydrophilic carbon nanotubes, it is possible to decrease the pore diameter without raising the water breakthrough pressure. This is effective at enhancing PEFC performance under both no and high humidity conditions, compared with that obtained for a hydrophobic MPL-coated GDL.

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, F. N. Buchi, B. S. Pivovar, T. F. Fuller, A. Z. Weber, L. Zhuang, C. Coutanceau, P. N. Pintauro, K. E. Ayers, V. K. Ramani, P. Strasser, R. A. Mantz, S. R. Narayanan, S. Mitsushima, T. J. Schmidt, S. G. Sun, H. Uchida, H. A. Gasteiger, K. Swider-Lyons, J. M. Fenton, Y. T. Kim, K. A. Perry, P. Shirvanian, K. Shinohara
出版社Electrochemical Society Inc.
ページ209-217
ページ数9
14
ISBN(電子版)9781607685395
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 2 201610 7 2016

出版物シリーズ

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

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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