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Direct ethanol fuel cells based on PtSn anodes: The effect of Sn content on the fuel cell performance

dc.creatorZhou, W. J.en
dc.creatorSong, S. Q.en
dc.creatorLi, W. Z.en
dc.creatorZhou, Z. H.en
dc.creatorSun, G. Q.en
dc.creatorXin, Q.en
dc.creatorDouvartzides, S.en
dc.creatorTsiakaras, P.en
dc.date.accessioned2015-11-23T10:55:00Z
dc.date.available2015-11-23T10:55:00Z
dc.date.issued2005
dc.identifier10.1016/j.jpowsour.2004.08.003
dc.identifier.issn3787753
dc.identifier.urihttp://hdl.handle.net/11615/34900
dc.description.abstractIn the present work, several carbon supported PtSn catalysts with different Pt/Sn atomic ratios were synthesized and characterized by X-ray diffraction (XRD), Transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). Both the results of TEM and XRD showed that all in-house prepared carbon supported Pt and PtSn catalysts had nanosized particles with narrow size distribution. According to the primary analysis of XPS results, it was confirmed that the main part of Pt of the as-prepared catalysts is in metallic state while the main part of Sn is in oxidized state. The performances of single direct ethanol fuel cells were different from each other with different anode catalysts and at different temperatures. It was found that, the single DEFC employing Pt3Sn2/C showed better performance at 60°C while the direct ethanol fuel cells with Pt2Sn 1/C and Pt3Sn2/C exhibited similar performances at 75°C. Furthermore, at 90°C, Pt2Sn1/C was identified as a more suitable anode catalyst for direct ethanol fuel cells in terms of the fuel cell maximum power density. Surface oxygen-containing species, lattice parameters and ohmic effects, which are related to the Sn content, are thought as the main factors influencing the catalyst activity and consequently the performance of single direct ethanol fuel cells. © 2004 Elsevier B.V. All rights reserved.en
dc.source.urihttp://www.scopus.com/inward/record.url?eid=2-s2.0-10644262048&partnerID=40&md5=4af7febf086dab851d1b85656e9b3d45
dc.subjectDirect ethanol fuel cellsen
dc.subjectPtSn/C anode catalystsen
dc.subjectAnodesen
dc.subjectAnodic oxidationen
dc.subjectCatalyst activityen
dc.subjectEthanol fuelsen
dc.subjectFuel economyen
dc.subjectPlatinum compoundsen
dc.subjectSlurriesen
dc.subjectTransmission electron microscopyen
dc.subjectX ray diffractionen
dc.subjectX ray photoelectron spectroscopyen
dc.subjectDirect ethanol fuel cells (DEFC)en
dc.subjectElectromotive forceen
dc.subjectEthanol fuel cellsen
dc.subjectFuel cellsen
dc.titleDirect ethanol fuel cells based on PtSn anodes: The effect of Sn content on the fuel cell performanceen
dc.typejournalArticleen


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