Sulfonimide polyphosphazene-based H2/O2 fuel cells

Elena Chalkova, Xiangyang Zhou, Catherine Ambler, Michael A. Hofmann, Jamie A. Weston, Harry R. Allcock, Serguei Lvov

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

Sulfonimide-functionalized polyphosphazenes have been investigated as polymer electrolyte membranes for use in an H2/O2 fuel cell. A sulfonimide polyphosphazene-based membrane electrode assembly (MEA) and a Nafion-based MEA with similar catalyst loadings were fabricated and tested within a fuel cell system. The maximum power density for the sulfonimide polyphosphazene MEA was 0.36 W cm-2 at 0.87 A cm-2 and 22°C, and reached 0.47 W cm-2 at 1.29 A cm-2 at 80°C. The performance of the sulfonimide polyphosphazene-based H2/O2 fuel cell was found to be comparable to that of the Nafion-based fuel cell.

Original languageEnglish (US)
JournalElectrochemical and Solid-State Letters
Volume5
Issue number10
DOIs
StatePublished - Oct 1 2002

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering

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