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Article: Platinum tungsten oxide (Pt–WO3) nanoparticles: their preparation in glycol and electrocatalytic properties
Title | Platinum tungsten oxide (Pt–WO3) nanoparticles: their preparation in glycol and electrocatalytic properties |
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Authors | |
Keywords | Platinum–tungsten oxide Methanol oxidation Fuel cells Pt–WO3 Nanoparticles |
Issue Date | 2006 |
Publisher | Taylor & Francis Ltd. The Journal's web site is located at http://www.tandf.co.uk/journals/titles/17458080.asp |
Citation | Journal of Experimental Nanoscience, 2006, v. 1 n. 1, p. 113-123 How to Cite? |
Abstract | A method to prepare supported nanoparticles of Pt–WO3 with composition control in nanoscales is presented. Transmission electron microscopy shows crystal domains in the nanoparticles, which have a narrow size distribution. Energy dispersive X-ray analyses performed in different regions show good uniformity in the Pt : W ratio, which correlates linearly with the Pt : W ratio in the precursor. Platinum is mostly present in the pure metallic state whereas tungsten is in the +6 oxidation state, as revealed by X-ray photoelectron spectroscopy. The Pt–WO3 nanoparticles supported on Vucan XC 72 carbon exhibit high activity for methanol oxidation at room temperature. The electrocatalytic activity varies with the Pt : W ratio with an optimum at 1 : 1. At this ratio, the activity is better than a commercial PtRu/C catalyst of equivalent platinum loading. |
Persistent Identifier | http://hdl.handle.net/10722/138972 |
ISSN | 2023 Impact Factor: 2.6 2023 SCImago Journal Rankings: 0.376 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Tsang, KY | en_US |
dc.contributor.author | Lee, TC | en_US |
dc.contributor.author | Ren, J | en_US |
dc.contributor.author | Chan, KY | en_US |
dc.contributor.author | Wang, HZ | en_US |
dc.contributor.author | Wang, H | en_US |
dc.date.accessioned | 2011-09-23T05:43:28Z | - |
dc.date.available | 2011-09-23T05:43:28Z | - |
dc.date.issued | 2006 | en_US |
dc.identifier.citation | Journal of Experimental Nanoscience, 2006, v. 1 n. 1, p. 113-123 | en_US |
dc.identifier.issn | 1745-8080 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/138972 | - |
dc.description.abstract | A method to prepare supported nanoparticles of Pt–WO3 with composition control in nanoscales is presented. Transmission electron microscopy shows crystal domains in the nanoparticles, which have a narrow size distribution. Energy dispersive X-ray analyses performed in different regions show good uniformity in the Pt : W ratio, which correlates linearly with the Pt : W ratio in the precursor. Platinum is mostly present in the pure metallic state whereas tungsten is in the +6 oxidation state, as revealed by X-ray photoelectron spectroscopy. The Pt–WO3 nanoparticles supported on Vucan XC 72 carbon exhibit high activity for methanol oxidation at room temperature. The electrocatalytic activity varies with the Pt : W ratio with an optimum at 1 : 1. At this ratio, the activity is better than a commercial PtRu/C catalyst of equivalent platinum loading. | en_US |
dc.language | eng | en_US |
dc.publisher | Taylor & Francis Ltd. The Journal's web site is located at http://www.tandf.co.uk/journals/titles/17458080.asp | en_US |
dc.relation.ispartof | Journal of Experimental Nanoscience | en_US |
dc.subject | Platinum–tungsten oxide | - |
dc.subject | Methanol oxidation | - |
dc.subject | Fuel cells | - |
dc.subject | Pt–WO3 | - |
dc.subject | Nanoparticles | - |
dc.title | Platinum tungsten oxide (Pt–WO3) nanoparticles: their preparation in glycol and electrocatalytic properties | en_US |
dc.type | Article | en_US |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1745-8080&volume=1&issue=1&spage=113&epage=123&date=2006&atitle=Platinum+tungsten+oxide+(Pt–WO3)+nanoparticles:+their+preparation+in+glycol+and+electrocatalytic+properties | en_US |
dc.identifier.email | Lee, TC: h0202570@hkusua.hku.hk | en_US |
dc.identifier.email | Chan, GKY: hrsccky@hku.hk | en_US |
dc.identifier.authority | Chan, GKY=rp00662 | en_US |
dc.identifier.doi | 10.1080/17458080500482297 | en_US |
dc.identifier.scopus | eid_2-s2.0-85009893690 | - |
dc.identifier.hkuros | 123390 | en_US |
dc.identifier.volume | 1 | en_US |
dc.identifier.issue | 1 | en_US |
dc.identifier.spage | 113 | en_US |
dc.identifier.epage | 123 | en_US |
dc.identifier.isi | WOS:000251176500011 | - |
dc.identifier.issnl | 1745-8080 | - |