Performance of carbon-supported pt nanoparticles covered by silica layers with low ionomer in polymer electrolyte fuel cells

Tomohiro Ohnishi, Magnus So, Sakae Takenaka, Yoshifumi Tsuge, Gen Inoue

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

3 被引用数 (Scopus)

抄録

Catalyst layers (CLs) are designed using a specific ionomer in accordance with the required mass transport. Although the ionomer is needed as the protonic conductor, an excess addition prevents oxygen diffusion. This work investigates the effect of using a SiO2 coating and a low amount of ionomer on the performance of a polymer electrolyte fuel cell (PEFC). The application of a SiO2 coating to the catalyst surface is expected to change its surface characteristics and enhance the dispersion of the catalyst in the ink. In terms of their particle distribution, catalysts coated with SiOj maintain a higher dispersivity than commercial Pt/C with a low amount of ionomer. The structure of the CLs was investigated by examining the effects of various amounts of ionomer in the presence and absence of Si02 coating by studying the cross-sectional morphology of the CLs with focused ion beam-scanning electron microscopy (FIB-SEM).

本文言語英語
ホスト出版物のタイトルECS Transactions
編集者C. Coutanceau, S. Narayan, Y.-T. Kim, Y. Gochi-Ponce, B.S. Pivovar, T.F. Fuller, R.A. Mantz, P. Shirvanian, D.J. Jones, F. Buechi, V.K. Ramani, J.M. Fenton, K.E. Swider-Lyons, T.J. Schmidt, K.E. Ayers, A.Z. Weber, P.N. Pintauro, P. Strasser, H. Xu, S. Mitsushima, H. Gasteiger, H. Uchida
出版社Electrochemical Society Inc.
ページ453-460
ページ数8
13
ISBN(電子版)9781607685395
DOI
出版ステータス出版済み - 1 1 2018
イベントSymposium on Polymer Electrolyte Fuel Cells and Electrolyzers 18, PEFC and E 2018 - AiMES 2018, ECS and SMEQ Joint International Meeting - Cancun, メキシコ
継続期間: 9 30 201810 4 2018

出版物シリーズ

名前ECS Transactions
番号13
86
ISSN(印刷版)1938-6737
ISSN(電子版)1938-5862

その他

その他Symposium on Polymer Electrolyte Fuel Cells and Electrolyzers 18, PEFC and E 2018 - AiMES 2018, ECS and SMEQ Joint International Meeting
Countryメキシコ
CityCancun
Period9/30/1810/4/18

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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