Increasing the operating temperature of nafion membranes with addition of nanocrystalline oxides for direct methanol fuel cells

Vincenzo Baglio*, Alessandra Di Blasi, Antonino S. Arico, Vincenzo Antonucci, Pier Luigi Antonucci, Francesca Serraino Fiory, Silvia Licoccia, Enrico Traversa

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Composite Nafion membranes containing various amounts of TiO2 (3%, 5% and 10%) were prepared by using a recast procedure for application in high temperature Direct Methanol Fuel Cells (DMFCs). The electrochemical behaviour was compared to that of a membrane-electrode assembly (MEA) based on a bare recast Nafion membrane. All the MEAs containing the Nafion-titania membranes were able to operate up to 145°C, whereas the assembly equipped with the bare recast Nafion membrane showed the maximum performance at 120°C. A maximum power density of 340 mW cm-2 was achieved at 145°C with the composite membrane in the presence of oxygen feed, whereas the maximum power density with air feed was about 210 mW cm-2.

Original languageEnglish (US)
Pages (from-to)345-350
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume756
StatePublished - 2003
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

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