In-plane liquid water distribution at the interface between the gas diffusion layer and catalyst layer in the cathode of a polymer electrolyte fuel cell with a hybrid pattern flow field

Hironori Nakajima, Tatsumi Kitahara, Yasutaka Takazono, Satoshi Miyahara, Akira Shimizu

研究成果: 著書/レポートタイプへの貢献会議での発言

1 引用 (Scopus)

抄録

We have investigated the effect of flow field patterns without cathode humidification in a polymer electrolyte fuel cell (PEFC) using electrochemical impedance spectroscopy (EIS) with triple-parallel-serpentine, interdig-itated, and serpentine-interdigitated hybrid flow fields. The hybrid flow fields exhibit better performance than the others. The EIS results indicate that dehydration of the membrane and catalyst layer (CL) is significant for the triple-parallel-serpentine flow fields whereas that for the hybrid flow fields is not so severe. Thus the serpentine-interdigitated hybrid flow field has advantage in cell operation without cathode humidification, possibly because it provides a relatively uniform current distribution due to the in-terdigitated flow channel, and in addition, the serpentine flow channel involved in the hybrid flow field supplies water vapor along the channel. This water distribution behavior is also indicated by ex-situ tracer distribution observation using gas diffusion layers sprayed with water soluble metal salt tracer at the CL side.

元の言語英語
ホスト出版物のタイトルPolymer Electrolyte Fuel Cells 12, PEFC 2012
ページ291-299
ページ数9
エディション2
DOI
出版物ステータス出版済み - 12 1 2012
イベント12th Polymer Electrolyte Fuel Cell Symposium, PEFC 2012 - 222nd ECS Meeting - Honolulu, HI, 米国
継続期間: 10 7 201210 12 2012

出版物シリーズ

名前ECS Transactions
番号2
50
ISSN(印刷物)1938-5862
ISSN(電子版)1938-6737

その他

その他12th Polymer Electrolyte Fuel Cell Symposium, PEFC 2012 - 222nd ECS Meeting
米国
Honolulu, HI
期間10/7/1210/12/12

Fingerprint

Diffusion in gases
Fuel cells
Flow fields
Cathodes
Electrolytes
Catalysts
Liquids
Polymers
Water
Channel flow
Electrochemical impedance spectroscopy
Dehydration
Water vapor
Salts
Membranes
Metals

All Science Journal Classification (ASJC) codes

  • Engineering(all)

これを引用

Nakajima, H., Kitahara, T., Takazono, Y., Miyahara, S., & Shimizu, A. (2012). In-plane liquid water distribution at the interface between the gas diffusion layer and catalyst layer in the cathode of a polymer electrolyte fuel cell with a hybrid pattern flow field. : Polymer Electrolyte Fuel Cells 12, PEFC 2012 (2 版, pp. 291-299). (ECS Transactions; 巻数 50, 番号 2). https://doi.org/10.1149/05002.0291ecst

In-plane liquid water distribution at the interface between the gas diffusion layer and catalyst layer in the cathode of a polymer electrolyte fuel cell with a hybrid pattern flow field. / Nakajima, Hironori; Kitahara, Tatsumi; Takazono, Yasutaka; Miyahara, Satoshi; Shimizu, Akira.

Polymer Electrolyte Fuel Cells 12, PEFC 2012. 2. 編 2012. p. 291-299 (ECS Transactions; 巻 50, 番号 2).

研究成果: 著書/レポートタイプへの貢献会議での発言

Nakajima, H, Kitahara, T, Takazono, Y, Miyahara, S & Shimizu, A 2012, In-plane liquid water distribution at the interface between the gas diffusion layer and catalyst layer in the cathode of a polymer electrolyte fuel cell with a hybrid pattern flow field. : Polymer Electrolyte Fuel Cells 12, PEFC 2012. 2 Edn, ECS Transactions, 番号 2, 巻. 50, pp. 291-299, 12th Polymer Electrolyte Fuel Cell Symposium, PEFC 2012 - 222nd ECS Meeting, Honolulu, HI, 米国, 10/7/12. https://doi.org/10.1149/05002.0291ecst
Nakajima, Hironori ; Kitahara, Tatsumi ; Takazono, Yasutaka ; Miyahara, Satoshi ; Shimizu, Akira. / In-plane liquid water distribution at the interface between the gas diffusion layer and catalyst layer in the cathode of a polymer electrolyte fuel cell with a hybrid pattern flow field. Polymer Electrolyte Fuel Cells 12, PEFC 2012. 2. 版 2012. pp. 291-299 (ECS Transactions; 2).
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