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The Effect of Methane in Hydrogen on the Performance of Proton Exchange Membrane Fuel Cell  

Seo, Jung-Geun (Dept. of Chem. Eng., Ulsan Univ.)
Kwon, Jun-Taek (Dept. of Chem. Eng., Ulsan Univ.)
Kim, Jun-Bum (Dept. of Chem. Eng., Ulsan Univ.)
Chung, Jong-Tae (Div. of Hydrogen & Fuel Cell R&D, Research and Development Center of Korea Gas Corporation)
Kim, Woo-Sik (Div. of Hydrogen & Fuel Cell R&D, Research and Development Center of Korea Gas Corporation)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.18, no.4, 2007 , pp. 432-438 More about this Journal
Abstract
The reforming process for hydrogen production generates some impurities. Impurities in hydrogen such as $CO_2$, CO, $H_2S$, $NH_3$ affect fuel cell performance. It is well known that CO generated by the reforming process may negatively affect performance of cell, cause damage on catalysts resulting performance degradation. Hydrogen produced by reforming process includes about 2% methane. The presence of methane up to 10% is reported negligible degradation in cell performance. However, methane more than 10% in hydrogen stream had not been researched. The concentration of impurity supplied to the fuel cell was verified by gas chromatography(GC). In this study, the influence of $CH_4$ on performance of PEM fuel cell was investigated by means of current vs. potential experiment, long run(10 hr) test and electrochemical impedance measurement when the concentrations of impurities were 10%, 20% and 30%.
Keywords
PEM Fuel Cell; methane; contamination; impedance; fuel impurity;
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Times Cited By KSCI : 2  (Citation Analysis)
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