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Article: Platinum tungsten oxide (Pt–WO3) nanoparticles: their preparation in glycol and electrocatalytic properties

TitlePlatinum tungsten oxide (Pt–WO3) nanoparticles: their preparation in glycol and electrocatalytic properties
Authors
KeywordsPlatinum–tungsten oxide
Methanol oxidation
Fuel cells
Pt–WO3
Nanoparticles
Issue Date2006
PublisherTaylor & 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?
AbstractA 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 Identifierhttp://hdl.handle.net/10722/138972
ISSN
2015 Impact Factor: 0.832
2015 SCImago Journal Rankings: 0.204
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorTsang, KYen_US
dc.contributor.authorLee, TCen_US
dc.contributor.authorRen, Jen_US
dc.contributor.authorChan, KYen_US
dc.contributor.authorWang, HZen_US
dc.contributor.authorWang, Hen_US
dc.date.accessioned2011-09-23T05:43:28Z-
dc.date.available2011-09-23T05:43:28Z-
dc.date.issued2006en_US
dc.identifier.citationJournal of Experimental Nanoscience, 2006, v. 1 n. 1, p. 113-123en_US
dc.identifier.issn1745-8080en_US
dc.identifier.urihttp://hdl.handle.net/10722/138972-
dc.description.abstractA 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.languageengen_US
dc.publisherTaylor & Francis Ltd. The Journal's web site is located at http://www.tandf.co.uk/journals/titles/17458080.aspen_US
dc.relation.ispartofJournal of Experimental Nanoscienceen_US
dc.subjectPlatinum–tungsten oxide-
dc.subjectMethanol oxidation-
dc.subjectFuel cells-
dc.subjectPt–WO3-
dc.subjectNanoparticles-
dc.titlePlatinum tungsten oxide (Pt–WO3) nanoparticles: their preparation in glycol and electrocatalytic propertiesen_US
dc.typeArticleen_US
dc.identifier.openurlhttp://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+propertiesen_US
dc.identifier.emailLee, TC: h0202570@hkusua.hku.hken_US
dc.identifier.emailChan, GKY: hrsccky@hku.hken_US
dc.identifier.authorityChan, GKY=rp00662en_US
dc.identifier.doi10.1080/17458080500482297en_US
dc.identifier.hkuros123390en_US
dc.identifier.volume1en_US
dc.identifier.issue1en_US
dc.identifier.spage113en_US
dc.identifier.epage123en_US
dc.identifier.isiWOS:000251176500011-

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