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dc.contributor.authorChung, Chen-Chungen_US
dc.contributor.authorChen, Chiun-Hsunen_US
dc.contributor.authorWeng, De-Zhengen_US
dc.date.accessioned2014-12-08T15:09:02Z-
dc.date.available2014-12-08T15:09:02Z-
dc.date.issued2009-08-01en_US
dc.identifier.issn1359-4311en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.applthermaleng.2008.12.021en_US
dc.identifier.urihttp://hdl.handle.net/11536/6874-
dc.description.abstractThis study investigated transient CO poisoning of a proton-exchange membrane fuel cell under either a fixed cell voltage or fixed current density. During CO poisoning tests, the cell performance decreases over time. Experiments were performed to identify which method yields better performance in CO poisoning tests. The results revealed that a change in cell voltage did not affect the stable polarization behavior after CO poisoning of the cell. On the other hand, a higher fixed current density yielded better tolerance of 52.7 ppm CO. The air bleeding technique was then applied using different timings for air introduction during CO poisoning tests. Air bleeding significantly improved the CO tolerance of the cell and recovered the performance after poisoning, regardless of the timing of air introduction. The effects of different anode catalyst materials on cell performance were also investigated during poisoning tests. Without air bleeding, a Pt-Ru alloy catalyst exhibited better CO tolerance than a pure Pt catalyst. However, the air bleeding technique can effectively increase the CO tolerance of cells regardless of the type of catalyst used. (C) 2009 Elsevier Ltd. All rights reserved.en_US
dc.language.isoen_USen_US
dc.subjectProton-exchange membrane fuel cellen_US
dc.subjectCO poisoningen_US
dc.subjectAir bleeding techniqueen_US
dc.subjectCatalysten_US
dc.titleDevelopment of an air bleeding technique and specific duration to improve the CO tolerance of proton-exchange membrane fuel cellsen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.applthermaleng.2008.12.021en_US
dc.identifier.journalAPPLIED THERMAL ENGINEERINGen_US
dc.citation.volume29en_US
dc.citation.issue11-12en_US
dc.citation.spage2518en_US
dc.citation.epage2526en_US
dc.contributor.department機械工程學系zh_TW
dc.contributor.departmentDepartment of Mechanical Engineeringen_US
dc.identifier.wosnumberWOS:000269347000051-
dc.citation.woscount8-
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