Systematic Analysis for the Effects of Atmospheric Pollutants in Cathode Feed on the Performance of Proton Exchange Membrane Fuel Cells
- Systematic Analysis for the Effects of Atmospheric Pollutants in Cathode Feed on the Performance of Proton Exchange Membrane Fuel Cells
- 윤영곤; 최인수; 이창하; 한종희; 김형준; 조은애; 유성종; 남석우; 임태훈; 윤종진; 박세규; 장종현
- PEMFC; cathode; air impurity; fuel cell vehicle; Performance loss; Voltage recovery; Proton exchange membrane fuel cell
- Issue Date
- Bulletin of the Korean Chemical Society
- VOL 35, NO 12, 3475-3481
- 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.
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