An experimental study on the placement of reference electrodes in alkaline polymer electrolyte membrane fuel cells

Zeng, R, Slade, RCT and Varcoe, JR (2010) An experimental study on the placement of reference electrodes in alkaline polymer electrolyte membrane fuel cells Electrochimica Acta, 56 (1). 607 - 619. ISSN 0013-4686

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Abstract

The ability to accurately measure separate in situ anode and cathode overpotentials and impedance responses is still a source of debate when investigating fuelcells of planar configuration containing <100 μm thickness solid electrolytes and when using the common three-electrode arrangement. The results obtained in this study indicate that the overpotentials and impedances of the anode and cathode can be successfully measured when using two spatially separated referenceelectrodes and when the cathode and anode of alkalinemembraneelectrode assemblies (for alkalinepolymerelectrolytemembranefuelcells) are precisely and optimally misaligned. The frequency dependent response between the two referenceelectrodes is attributed to the membrane response and the “crosstalk” between anode and cathode.

Item Type:	Article
Additional Information:	NOTICE: this is the author’s version of a work that was accepted for publication in Electrochimica Acta. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Electrochimica Acta, 56(1), December 2010, DOI 10.1016/j.electacta.2010.08.032.
Related URLs:	Publisher
Divisions:	Faculty of Engineering and Physical Sciences > Chemistry
Depositing User:	John Varcoe
Date Deposited:	13 Jun 2012 13:21
Last Modified:	09 Jun 2014 13:18
URI:	http://epubs.surrey.ac.uk/id/eprint/375311

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