Nafion-Mesoporous Silica as Electrolyte for Ethanol Fuel Cells

Zakarya Ahmed, B. R. de Matos, D.Z. de Florio, S. Licoccia, E. Traversa, Vincenzo Esposito, E. I. Santiago, F. C. Fonseca

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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-SiO2 composite membrane with 5% of the filler was characterized by thermogravimetry 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
JournalE C S Transactions
Issue number1
Pages (from-to)853-860
Publication statusPublished - 2009
Externally publishedYes
Event216th ECS Meeting: 11th International Symposium B10 - Solid Oxide Fuel Cells - Vienna, Austria
Duration: 4 Oct 20099 Oct 2009
Conference number: 216


Conference216th ECS Meeting
Internet address

Cite this

Ahmed, Z., de Matos, B. R., de Florio, D. Z., Licoccia, S., Traversa, E., Esposito, V., Santiago, E. I., & Fonseca, F. C. (2009). Nafion-Mesoporous Silica as Electrolyte for Ethanol Fuel Cells. E C S Transactions, 25(1), 853-860.