Electrocatalytic oxidation of methanol on poly(vinylferrocene) modified Pt electrode

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dc.contributor.authorAkgül, Eda
dc.contributor.authorGülce, Ahmet
dc.contributor.authorGülce, Handan
dc.date.accessioned2020-03-26T18:25:27Z
dc.date.available2020-03-26T18:25:27Z
dc.date.issued2012
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractElectrooxidation of methanol have been studied on the poly(vinylferrocene) (PVF) coated Pt substrate electrode and uncoated Pt substrate electrode in aqueous HClO4 solutions and the results have been compared. The effects of various parameters such as polymeric films thickness, potential scan rates, methanol concentration and media temperature on the electrooxidation of methanol have been investigated. The results have showed that the current values obtained for the electrooxidation of methanol have been up to 19 times higher than the current values obtained with bare Pt substrate under the same conditions. The E-a values for forward scan oxidation of methanol at PVF coated Pt substrate and Pt substrate electrode have been found to be 8.2 kJ mol(-1) and 32.7 kJ mol(-1), respectively. The E-a values for reverse scan oxidation at the PVF coated Pt substrate and Pt substrate electrode have also been calculated as 21.7 kJ mol(-1) and 49.8 kJ mol(-1). respectively. The E-a values for the PVF coated Pt substrate electrode are lower than Pt substrate electrode for methanol electrooxidation indicating that electrocatalytic activity of PVF. Electrooxidation of methanol in this system shows no significant effects of site poisoning by chemisorbed CO. Furthermore, our results suggest that the important role of OH chemisorbed onto polymer matrix in electrocatalysis of methanol on modified electrode. The catalytic efficiency of PVF towards oxidation of methanol has been determined and it has been found to be higher than 100% at all scan rates. The results suggest that the electrooxidation of methanol proceeds on the PVF modified Pt substrate electrode with good catalytic efficiency. Chronoamperometry experiments have been also confirmed electrocatalytic performance of the PVF coating. (C) 2012 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipScientific and Technical Research Council of TurkeyTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [104T420]; Administrative Units of Selcuk UniversitySelcuk University [07101001]en_US
dc.description.sponsorshipThe authors are grateful for financial support by The Scientific and Technical Research Council of Turkey (Project No: 104T420) and The Administrative Units of The Research Projects of Selcuk University (Project No: 07101001).en_US
dc.identifier.doi10.1016/j.jelechem.2012.01.009en_US
dc.identifier.endpage82en_US
dc.identifier.issn1572-6657en_US
dc.identifier.issn1873-2569en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage73en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.jelechem.2012.01.009
dc.identifier.urihttps://hdl.handle.net/20.500.12395/28009
dc.identifier.volume668en_US
dc.identifier.wosWOS:000302108400011en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherELSEVIER SCIENCE SAen_US
dc.relation.ispartofJOURNAL OF ELECTROANALYTICAL CHEMISTRYen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectElectrocatalysisen_US
dc.subjectElectrooxidation of methanolen_US
dc.subjectPoly(vinylferrocene)en_US
dc.subjectModified electrodesen_US
dc.titleElectrocatalytic oxidation of methanol on poly(vinylferrocene) modified Pt electrodeen_US
dc.typeArticleen_US

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