Proton conducting polydimethylsiloxane/metal oxide hybrid membranes added with phosphotungstic acid(II)

Je Deok Kim, Itaru Honma

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)

Abstract

Flexible polymer electrolyte membranes consisting of zirconia (titania) and polydimethylsiloxane (PDMS) with the different molecular mass of 4500 and 600 have been synthesized by sol-gel processes. The polymeric membranes showed thermal stability and flexibility up to 300°C due to the presence of cross-linkable inorganic nano-phase in the hybrid macromolecular matrix. The membrane becomes proton conducting polymer electrolyte by addition of 12-phosphotungstic acid (PWA). The conductivity increased up to 7.7×10-2S/cm through ultrasonic treatment on the membrane, which is in the application level to polymer electrolyte fuel cells. The hybrid materials can be recognized as new, low cost and environment friendly electrolyte membranes.

Original languageEnglish
Pages (from-to)3429-3433
Number of pages5
JournalElectrochimica Acta
Volume49
Issue number20
DOIs
Publication statusPublished - 2004 Aug 30
Externally publishedYes

Keywords

  • Phosphotungstic acid
  • Polydimethylsiloxane
  • Polymer electrolyte fuel cell
  • Titana
  • Zirconia

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry

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