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dc.contributor.authorYan, Wei-Monen_US
dc.contributor.authorChu, Hsin-Senen_US
dc.contributor.authorLu, Meng-Xien_US
dc.contributor.authorWeng, Fang-Boren_US
dc.contributor.authorJung, Guo-Binen_US
dc.contributor.authorLee, Chi-Yuanen_US
dc.date.accessioned2014-12-08T15:09:55Z-
dc.date.available2014-12-08T15:09:55Z-
dc.date.issued2009-03-01en_US
dc.identifier.issn0378-7753en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.jpowsour.2008.11.107en_US
dc.identifier.urihttp://hdl.handle.net/11536/7572-
dc.description.abstractThe Co and CO(2) poisoning effects on the degradation of cell performance or proton exchange membrane fuel cell (PEMFC) tinder transient stage were investigated. The mechanism of CO poisoning lies in the preferential adsorbing or CO to the platinum surface and the blocking or active sites of hydrogen. These phenomena were described with adsorption, desorption, and electro-oxidation processes of CO and hydrogen in the present work. In addition, it is well known that the reverse water gas shift reaction (RWGS) is the main effect of the CO(2) poisoning, through which a large part of the catalytic surface area becomes inactive due to the hydrogen dissociation. The predicted results showed that, by contaminating the fuel with 10 ppm CO at the condition of P(H) = 0.8 atm and P(co2) = 0.2 atm, the current density of the PEM fuel cell was lowered 28% with rate constant of RWGS k(rs) from zero to 0.02. With 50 ppm CO, the performance drop was only 18%. For the reformed gas, CO(2) poisoning became much more significantly when the CO content in the reactant gas was small. (C) 2008 Elsevier B.V. All rights reserved.en_US
dc.language.isoen_USen_US
dc.subjectPEM fuel cellen_US
dc.subjectCO poisoningen_US
dc.subjectCO(2) poisoningen_US
dc.subjectDegradation or cell performanceen_US
dc.titleDegradation of proton exchange membrane fuel cells due to CO and CO(2) poisoningen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.jpowsour.2008.11.107en_US
dc.identifier.journalJOURNAL OF POWER SOURCESen_US
dc.citation.volume188en_US
dc.citation.issue1en_US
dc.citation.spage141en_US
dc.citation.epage147en_US
dc.contributor.department機械工程學系zh_TW
dc.contributor.departmentDepartment of Mechanical Engineeringen_US
dc.identifier.wosnumberWOS:000264391400021-
dc.citation.woscount20-
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