Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jpowsour.2004.08.022
DC FieldValue
dc.titleEffects of preparation conditions on performance of carbon-supported nanosize Pt-Co catalysts for methanol electro-oxidation under acidic conditions
dc.contributor.authorZeng, J.
dc.contributor.authorLee, J.Y.
dc.date.accessioned2014-10-09T06:46:35Z
dc.date.available2014-10-09T06:46:35Z
dc.date.issued2005-02-02
dc.identifier.citationZeng, J., Lee, J.Y. (2005-02-02). Effects of preparation conditions on performance of carbon-supported nanosize Pt-Co catalysts for methanol electro-oxidation under acidic conditions. Journal of Power Sources 140 (2) : 268-273. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jpowsour.2004.08.022
dc.identifier.issn03787753
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/88812
dc.description.abstractCarbon-supported Pt-Co and Pt catalysts are prepared by NaBH4 reduction of metal precursors. The particles size of Pt-Co varies with the pH used in the preparation, it is largest (12 nm) in alkaline solution and smallest (3.7 nm) in un-buffered solution. For the latter, X-ray photoelectron spectroscopy shows that Pt exists principally in the metallic state, whereas cobalt is mostly oxidized. The performance of the catalysts for methanol electro-oxidation in acidic media at room temperature is evaluated and compared with that of a Pt/C catalyst. Electrochemical measurements by cyclic voltammetry and chronoamperometry demonstrate consistently high catalytic activities and improved resistance to carbon monoxide for the Pt-Co catalysts, particularly for that prepared in un-buffered solution. © 2004 Elsevier B.V. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.jpowsour.2004.08.022
dc.sourceScopus
dc.subjectCarbon monoxide resistance
dc.subjectCatalyst
dc.subjectFuel cell
dc.subjectMethanol electro-oxidation
dc.subjectNanoparticles
dc.subjectPt-Co
dc.typeArticle
dc.contributor.departmentCHEMICAL & BIOMOLECULAR ENGINEERING
dc.description.doi10.1016/j.jpowsour.2004.08.022
dc.description.sourcetitleJournal of Power Sources
dc.description.volume140
dc.description.issue2
dc.description.page268-273
dc.description.codenJPSOD
dc.identifier.isiut000226707500008
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