Investigation of Concentration Overvoltage Increase in Low Pt-loading PEFC

S. Takei, K. Uda, M. Nagayama, K. Sasaki, A. Hayashi

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

抜粋

Based on the fact that concentration overvoltage increases for low Pt-loading MEAs from our previous study, we have investigated the mechanism of increase in concentration overvoltage in order to develop highly efficient low Pt-loading PEFCs. In this study, controlling water discharge in the cathode layer has been tried through two methods, lowering the relative humidity condition of MEA operation and using a more hydrophobic carbon support, graphitized Ketjen black. The second method has worked out even though the first method hasn't. Consequently, by changing the carbon support from Ketjen black to graphitized Ketjen black, approximately 60% reduction in concentration overvoltage has been successfully achieved under the 0.23 mgC/cm2 condition.

元の言語英語
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
出版者Electrochemical Society Inc.
ページ293-303
ページ数11
エディション8
ISBN(電子版)9781607685395
DOI
出版物ステータス出版済み - 1 1 2019
イベントSymposium on Polymer Electrolyte Fuel Cells and Electrolyzers 19, PEFC and E 2019 - 236th ECS Meeting - Atlanta, 米国
継続期間: 10 13 201910 17 2019

出版物シリーズ

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

会議

会議Symposium on Polymer Electrolyte Fuel Cells and Electrolyzers 19, PEFC and E 2019 - 236th ECS Meeting
米国
Atlanta
期間10/13/1910/17/19

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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  • これを引用

    Takei, S., Uda, K., Nagayama, M., Sasaki, K., & Hayashi, A. (2019). Investigation of Concentration Overvoltage Increase in Low Pt-loading PEFC. : 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 (版), Polymer Electrolyte Fuel Cells and Electrolyzers 19, PEFC and E 19 (8 版, pp. 293-303). (ECS Transactions; 巻数 92, 番号 8). Electrochemical Society Inc.. https://doi.org/10.1149/09208.0293ecst