Polymer solid acid composite membranes for fuel-cell applications

Dane A. Boysen, Calum R I Chisholm, Sossina M. Haile, Sekharipuram R. Narayanan

Research output: Contribution to journalArticlepeer-review

69 Scopus citations


A systematic study of the conductivity of polyvinylidene fluoride (PVDF) and CsHSO4 composites, containing 0 to 100% CsHSO4, has been carried out. The polymer, with its good mechanical properties, served as a supporting matrix for the high proton conductivity inorganic phase. The conductivity of composites exhibited a sharp increase with temperature at 142°C, characteristic of the superprotonic phase transition of CsHSO4. At high temperature (160°C), the dependence of conductivity on vol % CsHSO4 was monotonic and revealed a percolation threshold of approx. 10 vol %. At low temperature (100°C), a maximum in the conductivity at approx. 80 vol % CsHSO4 was observed. Results of preliminary fuel cell measurements are presented.

Original languageEnglish (US)
Pages (from-to)3610-3613
Number of pages4
JournalJournal of the Electrochemical Society
Issue number10
StatePublished - Oct 2000

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry


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