Effect of gas dilution on PEM fuel cell performance and impedance response

被引：60

作者：

Boillot, M

Bonnet, C

Jatroudakis, N

Carre, P

Didierjean, S

Lapicque, F

机构：

[1] Ecole Natl Super Ind Chim, CNRS, Lab Sci Genie Chim, F-54001 Nancy, France

[2] UNP, INPL, CNRS, Lab Energet & Mecan Theor & Appl, F-54500 Vandoeuvre Les Nancy, France

来源：

FUEL CELLS | 2006年 / 6卷 / 01期

关键词：

fuel cell performance; gas dilution; impedance spectroscopy; simulated reforming gas;

D O I：

10.1002/fuce.200500101

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

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.

引用

页码：31 / 37

页数：7

共 25 条

[1] Analysis of performance losses in polymer electrolyte fuel cells at high current densities by impedance spectroscopy [J].