Please use this identifier to cite or link to this item:
https://doi.org/10.1016/j.jpowsour.2004.08.022
DC Field | Value | |
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dc.title | Effects of preparation conditions on performance of carbon-supported nanosize Pt-Co catalysts for methanol electro-oxidation under acidic conditions | |
dc.contributor.author | Zeng, J. | |
dc.contributor.author | Lee, J.Y. | |
dc.date.accessioned | 2014-10-09T06:46:35Z | |
dc.date.available | 2014-10-09T06:46:35Z | |
dc.date.issued | 2005-02-02 | |
dc.identifier.citation | Zeng, 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.issn | 03787753 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/88812 | |
dc.description.abstract | Carbon-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.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.jpowsour.2004.08.022 | |
dc.source | Scopus | |
dc.subject | Carbon monoxide resistance | |
dc.subject | Catalyst | |
dc.subject | Fuel cell | |
dc.subject | Methanol electro-oxidation | |
dc.subject | Nanoparticles | |
dc.subject | Pt-Co | |
dc.type | Article | |
dc.contributor.department | CHEMICAL & BIOMOLECULAR ENGINEERING | |
dc.description.doi | 10.1016/j.jpowsour.2004.08.022 | |
dc.description.sourcetitle | Journal of Power Sources | |
dc.description.volume | 140 | |
dc.description.issue | 2 | |
dc.description.page | 268-273 | |
dc.description.coden | JPSOD | |
dc.identifier.isiut | 000226707500008 | |
Appears in Collections: | Staff Publications |
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