Nano/microscale simulation of proton transport in catalyst layer

K. Kobayashi, T. Mabuchi, G. Inoue, T. Tokumasu

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

To spread polymer electrolyte fuel cells, improving the cell performance is required. The cell performance depends on various factors. One of the factors that lowers cell performance is proton transport resistance in catalyst layers. Catalyst layers have Nano/Microscale structures which influence on proton transport resistance. In this study, to investigate the relationship between structures of catalyst layers and cell performances, mass transport and chemical reactions are calculated in the 3D catalyst layer models. The information about the ionomer thickness dependence on the diffusion coefficient of protons based on the molecular dynamics simulation studies, is introduced to transport calculation in order to analyze nanoscale structure influence on the cell performance. As a result, we have found that the output voltage increases over the whole range of current density with increasing ionomer/carbon ratio considering ionomer thickness dependence. This result suggests that the nanoscale structure in catalyst layer has a large influence on the cell performance.

本文言語English
ホスト出版物のタイトルPolymer Electrolyte Fuel Cells and Electrolyzers 19, PEFC and E 19
編集者K. Swider-Lyons, H. Uchida, F. Buechi, W. E. Mustain, B. S. Pivovar, P. N. Pintauro, A. Z. Weber, D. Jones, H. Gasteiger, C. A. Rice, P. Strasser, E. Kjeang, K. Shinohara, S. Mitsushima, Y.-T. Kim, T. J. Schmidt, J. M. Fenton, R. A. Mantz, B. Lakshmanan, H. Xu
出版社Electrochemical Society Inc.
ページ515-522
ページ数8
8
ISBN(印刷版)9781607688822
DOI
出版ステータスPublished - 2019
イベントSymposium on Polymer Electrolyte Fuel Cells and Electrolyzers 19, PEFC and E 2019 - 236th ECS Meeting - Atlanta, United States
継続期間: 2019 10 132019 10 17

出版物シリーズ

名前ECS Transactions
番号8
92
ISSN(印刷版)1938-6737
ISSN(電子版)1938-5862

Conference

ConferenceSymposium on Polymer Electrolyte Fuel Cells and Electrolyzers 19, PEFC and E 2019 - 236th ECS Meeting
CountryUnited States
CityAtlanta
Period19/10/1319/10/17

ASJC Scopus subject areas

  • Engineering(all)

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