Effects of carbon supports on Pt distribution, ionomer coverage and cathode performance for polymer electrolyte fuel cells
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- 作者：Young-Chul Parka ; Haruki Tokiwab ; Katsuyoshi Kakinumaa ; Masahiro Watanabea ; Makoto Uchidaa ; uchidam@yamanashi.ac.jp" class="auth_mail" title="E-mail the corresponding author
- 关键词：Carbon-supported Pt catalysts ; Effective Pt surface area ; Pore structure ; Ionomer distribution ; Polymer electrolyte fuel cells
- 刊名：Journal of Power Sources
- 出版年：2016
- 出版时间：31 May 2016
- 年：2016
- 卷：315
- 期：Complete
- 页码：179-191
- 全文大小：8840 K
文摘
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Effective Pt surface area was in the order: Pt/CB < Pt/GCB < Pt/AB800 < Pt/AB250.
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Hollow structure of the CB and AB800 decreased the effective Pt surface area (S(e)Pt).
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S(e)Pt values were in good agreement with the performance at high current densities.
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This is due to improvement of the effective Pt surface area and ionomer distribution.
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The AB-supported Pt catalysts had well-balanced supply paths for protons and oxygen.