Effect of the Hydrophilic Layer in Double Microporous Layer Coated Gas Diffusion Layer on PEFC Performance

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

抄録

Water management is always one of the main problems of polymer electrolyte fuel cells performance enhancement because it dramatically influences oxygen transport resistance. Typically, the MPL coated GDL with strong hydrophobicity effectively prevents flooding between the catalyst layer and the MPL. To further improve PEFC performance, directly coating an extra hydrophilic MPL on the hydrophobic MPL coated GDL as double MPL can further promote performance. The double MPL using Nafion binder cannot provide enough hydrophilicity to lower the oxygen transport resistance. Combining utilization of the Nafion and TiO2 is efficacious in decreasing the breakthrough pressure and contact angle and ameliorating water drainage from the MEA so that the gas transport ability can be improved. Besides, the appropriate thickness of the double MPL was investigated to better design the double MPL coated GDL.

本文言語英語
ホスト出版物のタイトルECS Transactions
出版社Institute of Physics
ページ85-93
ページ数9
9
ISBN(電子版)9781607685395
DOI
出版ステータス出版済み - 2022
イベント242nd ECS Meeting - Atlanta, 米国
継続期間: 10月 9 202210月 13 2022

出版物シリーズ

名前ECS Transactions
番号9
109
ISSN(印刷版)1938-6737
ISSN(電子版)1938-5862

会議

会議242nd ECS Meeting
国/地域米国
CityAtlanta
Period10/9/2210/13/22

!!!All Science Journal Classification (ASJC) codes

  • 工学(全般)

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