Systematic Analysis for the Effects of Atmospheric Pollutants in Cathode Feed on the Performance of Proton Exchange Membrane Fuel Cells

Title
Systematic Analysis for the Effects of Atmospheric Pollutants in Cathode Feed on the Performance of Proton Exchange Membrane Fuel Cells
Authors
윤영곤최인수이창하한종희김형준조은애유성종남석우임태훈윤종진박세규장종현
Keywords
PEMFC; cathode; air impurity; fuel cell vehicle; Performance loss; Voltage recovery; Proton exchange membrane fuel cell
Issue Date
2014-12
Publisher
Bulletin of the Korean Chemical Society
Citation
VOL 35, NO 12, 3475-3481
Abstract
This paper describes how primary contaminants in ambient air affect the performance of the cathode in fuel cell electric vehicle applications. The effect of four atmospheric pollutants (SO2, NH3, NO2, and CO) on cathode performance was investigated by air impurity injection and recovery test under load. Electrochemical analysis via polarization and electrochemical impedance spectroscopy was performed for various concentrations of contaminants during the impurity test in order to determine the origins of performance decay. The variation in cell voltage derived empirically in this study and data reported in the literature were normalized and juxtaposed to elucidate the relationship between impurity concentration and performance. Mechanisms of cathode degradation by air impurities were discussed in light of the findings.
URI
http://pubs.kist.re.kr/handle/201004/48742
ISSN
02532964
Appears in Collections:
KIST Publication > Article
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