Nafion-mesoporous silica as electrolyte for ethanol fuel cells

Z. Ahmed*, B. R. De Matos, D. Z. De Florio, S. Licoccia, Enrico Traversa, V. Esposito, E. I. Santiago, F. C. Fonseca

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

In this work, mesoporous silica with medium surface area was prepared. The synthesized mesoporous silica was characterized by BET, SEM and TEM demonstrating the formation of an organized pore structure of the silica. Nafion-Si02 composite membrane with 5% of the filler was characterized by fhermogravimetry and ac impedance spectroscopy. The composite membranes exhibited higher proton conductivity than the reference Nafion membrane, due to the increasing of the water retention of the system. Direct ethanol fuel cell polarization curves of the composite were also conducted at 80°C and 130 °C, confirming the enhancement in ethanol fuel cells performance, due to a reduced ethanol cross over, as well as to enhanced proton conductivity of the composite membrane.

Original languageEnglish (US)
Title of host publicationECS Transactions - Proton Exchange Membrane Fuel Cells 9
Pages853-860
Number of pages8
Edition1 PART 1
DOIs
StatePublished - Dec 1 2009
Event9th Proton Exchange Membrane Fuel Cell Symposium (PEMFC 9) - 216th Meeting of the Electrochemical Society - Vienna, Austria
Duration: Oct 4 2009Oct 9 2009

Publication series

NameECS Transactions
Number1 PART 1
Volume25
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

Other9th Proton Exchange Membrane Fuel Cell Symposium (PEMFC 9) - 216th Meeting of the Electrochemical Society
CountryAustria
CityVienna
Period10/4/0910/9/09

ASJC Scopus subject areas

  • Engineering(all)

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