Effect of Methanol Crossover in a Liquid‐Feed Polymer‐Electrolyte Direct Methanol Fuel Cell

1 August 1996

journal article
Published by The Electrochemical Society in Journal of the Electrochemical Society

Vol. 143 (8) , 2601-2606
https://doi.org/10.1149/1.1837054

Abstract

The performance of a liquid‐feed direct methanol fuel cell employing a proton‐exchange membrane electrolyte with Pt‐Ru/C as anode and Pt/C as cathode is reported. The fuel cell can deliver a power density of ca. 0.2 W/cm² at 95°C, sufficient to suggest that the stack construction is well worthwhile. Methanol crossover across the polymer electrolyte at concentrations beyond 2 M methanol affects the performance of the cell which appreciates with increasing operating temperature.

Keywords

OXIDATION
ENERGY CONVERSION
PROTON EXCHANGE MEMBRANE
POWER DENSITY
DIRECT ENERGY CONVERSION
PERMEABILITY
PERFORMANCE
METHANOL
ELECTRIC POWER

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