Journal
JOURNAL OF POWER SOURCES
Volume 161, Issue 2, Pages 768-774Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2006.05.054
Keywords
PEM; fuel cell; modelling; gas solubilities; Henry's Law constants
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Proton exchange membrane (PEM) fuel cells have been under development for many years and appear to be the potential solution for many electricity supply applications. Modelling and computer simulation of PEM fuel cells have been equally-active areas of work as a means of developing better understanding of cell and stack operation, facilitating design improvements and supporting system simulation studies. In general, fuel cell models must be able to predict both activation and concentration polarizations at both anode and cathode. Normally these predictions require values of the concentration of the reactant gases (i.e. H-2 and 02) at the interface between the catalyst and the electrolyte. Electrolytes of interest could include various dilute acids or polymeric membranes such as Nafion (TM) so that gas solubilities, in the form of Henry's Law constants, could be required for a diverse group of solvents. Published solubility data have been evaluated and a number of Henry's Law correlations are proposed. (c) 2006 Elsevier B.V. All rights reserved.
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