Effect of Gas Dilution on PEM Fuel Cell Performance and Impedance Response

In this work, an experimental study of gas dilution on the performance of a polymer electrolyte membrane (PEM) fuel cell was carried out. Impedance spectra were analysed depending on the dilution of either hydrogen or oxygen by nitrogen. By comparison of the impedance spectra obtained, the three loo...

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Bibliographic Details
Published in:	Fuel cells (Weinheim an der Bergstrasse, Germany) Vol. 6; no. 1; pp. 31 - 37
Main Authors:	Boillot, M., Bonnet, C., Jatroudakis, N., Carre, P., Didierjean, S., Lapicque, F.
Format:	Journal Article
Language:	English
Published:	Weinheim WILEY-VCH Verlag 01-02-2006 WILEY‐VCH Verlag Wiley-VCH Verlag
Subjects:	Chemical and Process Engineering Engineering Sciences Fuel Cell Performance Gas Dilution Impedance Spectroscopy Simulated Reforming Gas Fuel Cell Performance • Gas Dilution • Impedance Spectroscopy • Simulated Reforming Gas
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Summary:	In this work, an experimental study of gas dilution on the performance of a polymer electrolyte membrane (PEM) fuel cell was carried out. Impedance spectra were analysed depending on the dilution of either hydrogen or oxygen by nitrogen. By comparison of the impedance spectra obtained, the three loops were attributed to hydrogen oxidation, oxygen reduction and a low frequency diffusion process. Hydrogen oxidation was shown to be more complicated when the anode side was fed by a simulated reforming gas than with the same dilution rate with nitrogen.
Bibliography:	ArticleID:FUCE200500101 Article is part of Special Issue '2nd France - Deutschland Fuel Cell Conference 2004' ark:/67375/WNG-RJ9M71F1-6 istex:AD70974E8B37E1726C491F4E46447164BF91741E France – Deutschland Fuel Cell Conference 2004 nd Article is part of Special Issue ‘2
ISSN:	1615-6846 1615-6854
DOI:	10.1002/fuce.200500101