Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/70195
DC FieldValueLanguage
dc.contributor.authorWeng, K.W.en_US
dc.contributor.authorChen, Y.L.en_US
dc.contributor.authorChen, Y.C.en_US
dc.contributor.authorLin, T.N.en_US
dc.date2009zh_TW
dc.date.accessioned2014-06-11T05:59:29Z-
dc.date.available2014-06-11T05:59:29Z-
dc.identifier.issn1533-4880zh_TW
dc.identifier.urihttp://hdl.handle.net/11455/70195-
dc.description.abstractDirect methanol fuel cells (DMFC) have been widely studied owing to their simple cell configuration, high volume energy density, short start-up time, high operational reliability and other favorable characteristics. However, major limitations include high production cost, poisoning of the catalyst and methanol crossover. This study adopts a simple technique for preparing Pt-Ru/C multilayer catalysts, including magnetron sputtering (MS) and metal-plasma ion implantation (MPII). The Pt catalysts were sputtered onto the gas diffusion layer (GDL), followed by the implantation of Ru catalysts using MPII (at an accelerating voltage of 20 kV and an implantation dose of 1 x 1016 ionS/cm(2)). Pt-Ru is repeatedly processed to prepare Pt-Ru/C multilayer catalysts. The catalyst film structure and microstructure were analyzed by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and scanning electronic microscopy (SEM), respectively. The cell performance was tested using a potential stat/galvano-stat. The results reveal that the membrane electrode assembly (MEA) of four multilayer structures enhances the cell performance of DMFC. The measured power density is 2.2 MW/cm(2) at a methanol concentration of 2 M, with an OCV of 0.493 V.en_US
dc.language.isoen_USzh_TW
dc.relationJournal of Nanoscience and Nanotechnologyen_US
dc.relation.ispartofseriesJournal of Nanoscience and Nanotechnology, Volume 9, Issue 2, Page(s) 821-826.en_US
dc.relation.urihttp://dx.doi.org/10.1166/jnn.2009.C032en_US
dc.subjectDMFCen_US
dc.subjectMPIIen_US
dc.subjectMSen_US
dc.subjectPten_US
dc.subjectRuen_US
dc.subjectMEAen_US
dc.subjectdmfcen_US
dc.subjectperformanceen_US
dc.subjectnanoparticlesen_US
dc.subjectelectrooxidationen_US
dc.subjectmembranesen_US
dc.subjectanodeen_US
dc.subjectsizeen_US
dc.titleElectrical Enhancement of Direct Methanol Fuel Cells by Metal-Plasma Ion Implantation Pt-Ru/C Multilayer Catalystsen_US
dc.typeJournal Articlezh_TW
dc.identifier.doi10.1166/jnn.2009.C032zh_TW
item.languageiso639-1en_US-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
item.openairetypeJournal Article-
item.fulltextno fulltext-
item.grantfulltextnone-
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