Transportation of proton in the perfluorosulfonic acid polymer membrane impregnated with room-temperature ionic liquids

Arata Goto, Yasushi Katayama, Takashi Miura

Research output: Contribution to conferencePaperpeer-review

Abstract

Perfluorosulfonic acid polymer membranes impregnated with various room-temperature ionic liquids were evaluated as the possible electrolytes for polymer electrolyte fuel cells (PEFCs) or direct methanol fuel cells (DMFCs) operated at elevated temperature (∼200°C). The conductivity of the polymer electrolytes (Nafion®) containing various room-temperature ionic liquids was examined by both DC and AC measurements under dry hydrogen atmosphere at 120-200°C. The conductivity of a membrane was found to be determined mainly by that of the ionic liquid impregnated in the membrane. It suggests that protons associate with anionic species of ionic liquids and transported by a kind of vehicle mechanism in the membrane.

Original languageEnglish
Pages4543-4544
Number of pages2
Publication statusPublished - 2005 Dec 1
Event54th SPSJ Symposium on Macromolecules - Yamagata, Japan
Duration: 2005 Sep 202005 Sep 22

Other

Other54th SPSJ Symposium on Macromolecules
Country/TerritoryJapan
CityYamagata
Period05/9/2005/9/22

Keywords

  • Fuel cell
  • Ionic liquid
  • Polymer electrolyte
  • Proton

ASJC Scopus subject areas

  • Engineering(all)

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