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Increasing the Operating Temperature of Nafion Membranes with Addition of Nanocrystalline Oxides for Direct Methanol Fuel Cells

Published online by Cambridge University Press:  11 February 2011

Vincenzo Baglio ,
Alessandra Di Blasi ,
Antonino S. Arico' ,
Vincenzo Antonucci ,
Pier Luigi Antonucci ,
Francesca Serraino Fiory ,
Silvia Licoccia  and
Enrico Traversa
Vincenzo Baglio
Affiliation:
CNR-TAE Institute, via Salita S. Lucia sopra Contesse 98126 Messina, Italy University “Tor Vergata”of Rome, via della Ricerca Scientifica, 00133 Roma, Italy
Alessandra Di Blasi
Affiliation:
CNR-TAE Institute, via Salita S. Lucia sopra Contesse 98126 Messina, Italy
Antonino S. Arico'
Affiliation:
CNR-TAE Institute, via Salita S. Lucia sopra Contesse 98126 Messina, Italy
Vincenzo Antonucci
Affiliation:
CNR-TAE Institute, via Salita S. Lucia sopra Contesse 98126 Messina, Italy
Pier Luigi Antonucci
Affiliation:
University of Reggio Calabria, Località Feo Di Vito, 89100 Reggio Calabria, Italy
Francesca Serraino Fiory
Affiliation:
University “Tor Vergata”of Rome, via della Ricerca Scientifica, 00133 Roma, Italy
Silvia Licoccia
Affiliation:
University “Tor Vergata”of Rome, via della Ricerca Scientifica, 00133 Roma, Italy
Enrico Traversa
Affiliation:
University “Tor Vergata”of Rome, via della Ricerca Scientifica, 00133 Roma, Italy
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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.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 756: Symposia EE/FF – Solid-State Ionics – Materials for Fuel Cells and Fuel Processors , 2002 , EE2.10
Copyright
Copyright © Materials Research Society 2003

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References

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