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Effect of Gas Dilution on PEM Fuel Cell Performance and Impedance Response
Author(s) -
Boillot M.,
Bonnet C.,
Jatroudakis N.,
Carre P.,
Didierjean S.,
Lapicque F.
Publication year - 2006
Publication title -
fuel cells
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.485
H-Index - 69
eISSN - 1615-6854
pISSN - 1615-6846
DOI - 10.1002/fuce.200500101
Subject(s) - dilution , electrolyte , hydrogen , anode , proton exchange membrane fuel cell , diffusion , oxygen , analytical chemistry (journal) , gaseous diffusion , chemistry , materials science , chemical engineering , membrane , fuel cells , chromatography , thermodynamics , electrode , organic chemistry , engineering , biochemistry , physics
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.