Sulfated zirconium oxide (S-ZrO2) was used as electrode and electrolyte additive for direct methanol fuel cells (DMFCs). Composite Nafion electrolyte membranes and Pt electrocatalysts, both containing S-ZrO2 at different content, were prepared. The morphology and catalytic activity of prepared catalysts were investigated by scanning electron microscopy, and voltammetric technique. Results indicated that Pt/S-ZrO2 catalysts showed enhanced efficiency towards oxygen reduction reaction and increased methanol tolerance as compared to bare platinum. Pt/S-ZrO2-based carbon cloth electrodes were prepared and assembled as cathode in a DMFC, with Nafion/S-ZrO2 as composite electrolyte membrane. With respect to bare platinum and Nafion, higher values of current and power density were recorded at 110 °C. The use of S-ZrO2 both as catalyst and electrolyte additive provided enhanced membrane/electrode interface stability, as revealed by EIS spectra recorded during cell operation. © 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
|Tipologia:||Articolo su rivista|
|Citazione:||Iannaci, A., Mecheri, B., D'Epifanio, A., & Licoccia, S. (2014). Sulfated zirconium oxide as electrode and electrolyte additive for direct methanol fuel cell applications. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 39(21), 11241-11249.|
|IF:||Con Impact Factor ISI|
|Settore Scientifico Disciplinare:||Settore CHIM/07 - Fondamenti Chimici delle Tecnologie|
|Revisione (peer review):||Esperti anonimi|
|Digital Object Identifier (DOI):||10.1016/j.ijhydene.2014.05.121|
|Stato di pubblicazione:||Pubblicato|
|Data di pubblicazione:||2014|
|Titolo:||Sulfated zirconium oxide as electrode and electrolyte additive for direct methanol fuel cell applications|
|Autori interni:||LICOCCIA, SILVIA |
|Autori:||Iannaci, A; Mecheri, B.; D'Epifanio, A; Licoccia, S|
|Appare nelle tipologie:||01 - Articolo su rivista|
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