Proton conducting hybridmembranes based on aromatic polymers blends for direct methanol fuel cell applications

C. De Bonis, A. D'Epifanio, M. L. DiVona, C. D'Ottavi, B. Mecheri, Enrico Traversa, M. Trombetta, S. Licoccia*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

Composite membranes made-up of sulphonated polyetheretherketone (SPEEK, DS = 0.5) and of a sulphonated and silylated hybrid organic-inorganic derivative of polyphenylsulphone (SiSPPSU, DS = 2) were prepared and characterised. The water and methanol uptake, as well as thermal properties, of blend membranes containing 5 and 10 wt.-% SiSPPSU were evaluated. The electrochemical performancef the membranes was evaluated by electrochemical impedance spectroscopy (EIS) and tested in a direct methanol fuel cell (DMFC) station. The presence of SiSPPSU modified the properties of SPEEK, allowing to increase its performance in terms of proton conductivity, thermal and hydrolytic stability. These blends appeared to be suitable electrolytesfor DMFC applications.

Original languageEnglish (US)
Pages (from-to)387-393
Number of pages7
JournalFuel Cells
Volume9
Issue number4
DOIs
StatePublished - Aug 1 2009

Keywords

  • DMFC
  • Electrolytes
  • Organic-inorganic polymer
  • Polyetheretherketone
  • Polyphenylsulphone

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology

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