@inproceedings{43ca2e6cc94d4869929f01901a9757c9,
title = "High temperature operation of direct ethanol fuel cells with Nafion-TiO2 membranes and PtSn/C electrocatalysts",
abstract = "In this study, both PtSn/C electrocatalysts and composites electrolytes based on Nafion and mesoporous titania (Nafion-TiO2) were evaluated in direct ethanol fuel cell operating at 130°C. PtSn/C catalysts with different compositions were prepared by alcohol-reduction process. The electrochemical activity of these electrocatalysts was verified by cyclic voltammetry and chronoamperometry measurements. Cast Nafion-TiO2 composites were characterized by differential scanning calorimetry and ac impedance spectroscopy. The water uptake of the composites was determined by gravimetry. Membrane electrode assemblies composed by Nafion-TiO2 electrolyte and PtSn/C anode were evaluate in DEFC operating in 80-130°C temperature range. Polarization curves showed an enhanced performance (maximum power density of ∼50 mW cm-2) for DEFC using combined PtSn/C (60:40) electrocatalyst and Nafion-TiO2 (10 wt%) operating at 130°C.",
author = "Isidoro, {R. A.} and Matos, {B. R.} and Dresch, {M. A.} and Spinac{\'e}a, {E. V.} and M. Linardi and E. Traversa and Fonseca, {F. C.} and Santiago, {E. I.}",
year = "2009",
doi = "10.1149/1.3210627",
language = "English (US)",
isbn = "9781566777384",
series = "ECS Transactions",
number = "1 PART 1",
pages = "757--764",
booktitle = "ECS Transactions - Proton Exchange Membrane Fuel Cells 9",
edition = "1 PART 1",
note = "9th Proton Exchange Membrane Fuel Cell Symposium (PEMFC 9) - 216th Meeting of the Electrochemical Society ; Conference date: 04-10-2009 Through 09-10-2009",
}