Multiscale simulation of proton transport in the catalyst layer with consideration of ionomer thickness distribution

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

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

2 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 multiscale 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 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. Furthermore, cell performance analysis with ionomer thickness distribution based on experimental values is conduced in this study. The result suggests that contribution of nanoscale proton transport characteristic increases by improving the ionomer distribution model.

本文言語英語
ホスト出版物のタイトルPRiME 2020
ホスト出版物のサブタイトルPolymer Electrolyte Fuel Cells and Electrolyzers 20 (PEFC and E 20)
編集者K. Swider-Lyons, H. Uchida, P. N. Pintauro, W. Mustain, F. Buechi, B. S. Pivovar, C. A. Rice, J. M. Fenton, P. Strasser, K. E. Ayers, A. Z. Weber, R. A. Mantz, H. Xu, S. Mitsushima, E. Kjeang, T. J. Schmidt, B. Lakshmanan, A. Kusoglu, H. Jia, D. J. Jones, D. H. Ha, S. K. Kim
出版社IOP Publishing Ltd.
ページ187-196
ページ数10
9
ISBN(電子版)9781607689041
DOI
出版ステータス出版済み - 2020
イベントPacific Rim Meeting on Electrochemical and Solid State Science 2020, PRiME 200 - Honolulu, 米国
継続期間: 10月 4 202010月 9 2020

出版物シリーズ

名前ECS Transactions
番号9
98
ISSN(印刷版)1938-6737
ISSN(電子版)1938-5862

会議

会議Pacific Rim Meeting on Electrochemical and Solid State Science 2020, PRiME 200
国/地域米国
CityHonolulu
Period10/4/2010/9/20

!!!All Science Journal Classification (ASJC) codes

  • 工学(全般)

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