Sulfonated poly(arylene ether sulfone ketone) multiblock copolymers with highly sulfonated block. Fuel cell performance

Byungchan Bae, Takeshi Yoda, Kenji Miyatake, Makoto Uchida, Hiroyuki Uchida, Masahiro Watanabe

研究成果: Article査読

40 被引用数 (Scopus)

抄録

Poly(arylene ether sulfone ketone) (SPESK) multiblock copolymers having highly sulfonated hydrophilic blocks were synthesized and the fuel cell performance with the copolymers was investigated. A membrane electrode assembly (MEA) using an SPESK ionomer with an ion exchange capacity of 1.8 mequiv g -1 as membrane and Nafion as the electrode binder showed comparable fuel cell performance and ohmic resistance to that using a Nafion NRE 211 membrane at 80 °C and 30% relative humidity (RH). A Nafion-free, all-SPESK MEA using SPESK as both the membrane and the binder was operable at 100 °C and 50% RH. The fuel cell performance was limited not only by the proton conductivity of the SPESK membrane but also by the low water flux through the membrane and specific adsorption of the ionomer on the platinum catalyst.

本文言語English
ページ(範囲)10481-10487
ページ数7
ジャーナルJournal of Physical Chemistry B
114
32
DOI
出版ステータスPublished - 2010 8 19
外部発表はい

ASJC Scopus subject areas

  • 物理化学および理論化学
  • 表面、皮膜および薄膜
  • 材料化学

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