Influence of hydrophilic and hydrophobic double MPL coated GDL on PEFC performance without cathode humidification

研究成果: 著書/レポートタイプへの貢献会議での発言

4 引用 (Scopus)

抄録

Gas diffusion layers (GDLs) coated with a hydrophobic microporous layer (MPL) have been commonly used to improve the water management properties of polymer electrolyte fuel cells (PEFCs). In the present study, a new hydrophilic and hydrophobic double MPL coated GDL was developed to achieve further enhancement of PEFC performance without cathode humidification. A hydrophobic binder of polytetrafluoroethylene (PTFE) and a hydrophilic binder of polyvinyl alcohol (PVA) were used to coat the MPL on the carbon paper substrate. The hydrophilic layer is effective for conserving humidity at the catalyst layer, while the hydrophobic intermediate layer between the hydrophilic layer and the substrate prevents the removal of water in the hydrophilic layer via dry air in the substrate. Reducing the hydrophilic layer thickness to 5 μm was effective for enhancing PEFC performance. Appropriate enhancement of hydrophilicity by increasing the PVA content to 5 mass% was also effective for enhancing PEFC performance.

元の言語英語
ホスト出版物のタイトルPolymer Electrolyte Fuel Cells 10, PEFC 10
ページ1089-1097
ページ数9
33
エディション1 PART 2
DOI
出版物ステータス出版済み - 12 1 2010
イベント10th Polymer Electrolyte Fuel Cell Symposium, PEFC 10 - 218th ECS Meeting - Las Vegas, NV, 米国
継続期間: 10 10 201010 15 2010

その他

その他10th Polymer Electrolyte Fuel Cell Symposium, PEFC 10 - 218th ECS Meeting
米国
Las Vegas, NV
期間10/10/1010/15/10

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Diffusion in gases
Fuel cells
Cathodes
Electrolytes
Polyvinyl alcohols
Polymers
Binders
Substrates
Water management
Hydrophilicity
Polytetrafluoroethylenes
Atmospheric humidity
Catalysts
Carbon
Air
Water

All Science Journal Classification (ASJC) codes

  • Engineering(all)

これを引用

Influence of hydrophilic and hydrophobic double MPL coated GDL on PEFC performance without cathode humidification. / Kitahara, Tatsumi; Nakajima, Hironori; Konomi, T.

Polymer Electrolyte Fuel Cells 10, PEFC 10. 巻 33 1 PART 2. 編 2010. p. 1089-1097.

研究成果: 著書/レポートタイプへの貢献会議での発言

Kitahara, T, Nakajima, H & Konomi, T 2010, Influence of hydrophilic and hydrophobic double MPL coated GDL on PEFC performance without cathode humidification. : Polymer Electrolyte Fuel Cells 10, PEFC 10. 1 PART 2 Edn, 巻. 33, pp. 1089-1097, 10th Polymer Electrolyte Fuel Cell Symposium, PEFC 10 - 218th ECS Meeting, Las Vegas, NV, 米国, 10/10/10. https://doi.org/10.1149/1.3484602
Kitahara, Tatsumi ; Nakajima, Hironori ; Konomi, T. / Influence of hydrophilic and hydrophobic double MPL coated GDL on PEFC performance without cathode humidification. Polymer Electrolyte Fuel Cells 10, PEFC 10. 巻 33 1 PART 2. 版 2010. pp. 1089-1097
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