University of Illinois

Cynthia A York

Richard I Masel

Andrzej Wieckowski

Piotr Waszczuk

A membrane electrode assembly for use with a direct organic fuel cell containing a formic acid fuel includes a solid polymer electrolyte having first and second surfaces, an anode on the first surface and a cathode on the second surface and electrically linked to the anode. The solid polymer electrolyte has a thickness t: where Cis the formic acid fuel concentration over the anode, Dis the effective diffusivity of the fuel in the solid polymer electrolyte, Kis the equilibrium constant for partition coefficient for the fuel into the solid polymer electrolyte membrane, &#x2111; is Faraday's constant nis the number of electrons released whenmolecule of the fuel is oxidized, and jis an empirically determined crossover rate of fuel above which the fuel cell does not operate.

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Newington, CT, United States of America

Cynthia A York