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

Research output: Contribution to journalConference articleResearchpeer-review

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-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
Volume25
Issue number1
Pages (from-to)853-860
ISSN1938-5862
DOIs
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
http://www.electrochem.org/meetings/biannual/216/216.htm

Conference

Conference216th ECS Meeting
Number216
CountryAustria
CityVienna
Period04/10/200909/10/2009
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. https://doi.org/10.1149/1.3210639