Electrochemically modified boron-doped diamond electrode with Pd and Pd-Sn nanoparticles for ethanol electrooxidation

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dc.check.date2019-05-08
dc.check.infoAccess to this item is restricted until 24 months after publication by the request of the publisher.en
dc.contributor.authorMavrokefalos, Christos K.
dc.contributor.authorHasan, Maksudul
dc.contributor.authorKhunsin, Worawut
dc.contributor.authorSchmidt, Michael
dc.contributor.authorMaier, Stefan A.
dc.contributor.authorRohan, James F.
dc.contributor.authorCompton, Richard G.
dc.contributor.authorFoord, John S.
dc.contributor.funderH2020 Marie Skłodowska-Curie Actionsen
dc.contributor.funderIrish Research Councilen
dc.date.accessioned2017-07-19T14:50:11Z
dc.date.available2017-07-19T14:50:11Z
dc.date.issued2017-05-08
dc.date.updated2017-07-19T14:41:17Z
dc.description.abstractThe modification of hydrogen terminated boron-doped diamond (HBDD) electrode with pure palladium (Pd) and Pd-Sn (tin) nanoparticles is described in this study. For synthesis of Sn/HBDD and Pd-Sn/HBDD electrode, a potentiostatic two-step electrochemical method involving the electrodeposition of Sn followed by Pd was used, respectively. The modification of the HBDD electrode with Sn and noble metal Pd by forming bimetallic Pd-Sn nanoparticle leads to a higher electrocatalytic activity. The electrocatalytic activity of the bimetallic Pd-Sn nanoparticles was evaluated towards the electrooxidation of ethanol in alkaline media and compared with that of the Pd nanoparticles alone. The bimetallic Pd-Sn nanoparticles modified HBDD electrode exhibits higher current densities and less poisoning effects during ethanol electrooxidation compared to Pd/HBDD. The proper tuning of the Pd loading on a foreign metal along with the surface termination effects of the BDD electrode plays a crucial role in achieving a high mass (4.26×106mA/g) and specific (12.37mA/cm2) electrocatalytic activity of Pd towards ethanol electrooxidation. The aforementioned catalysts of this research possess a high poisoning resistance (If/Ib=1.63) and stability towards ethanol electrooxidation in alkaline media.en
dc.description.sponsorshipMarie Skłodowska Curie Actions co-funded Irish Research Council (Elevate fellowship ELEVATEPD/2014/15)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationMavrokefalos, C. K., Hasan, M., Khunsin, W., Schmidt, M., Maier, S. A., Rohan, J. F., Compton, R. G. and Foord, J. S. (2017) 'Electrochemically modified boron-doped diamond electrode with Pd and Pd-Sn nanoparticles for ethanol electrooxidation', Electrochimica Acta, 243, pp. 310-319. doi: 10.1016/j.electacta.2017.05.039en
dc.identifier.doi10.1016/j.electacta.2017.05.039
dc.identifier.endpage319en
dc.identifier.issn0013-4686
dc.identifier.journaltitleElectrochimica Actaen
dc.identifier.startpage310en
dc.identifier.urihttps://hdl.handle.net/10468/4246
dc.identifier.volume243en
dc.language.isoenen
dc.publisherElsevieren
dc.rights© 2017 Elsevier Ltd. This manuscript version is made available under the CC-BY-NC-ND 4.0 licenseen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectDiamonden
dc.subjectEthanolen
dc.subjectPalladiumen
dc.subjectTinen
dc.subjectNanoparticlesen
dc.titleElectrochemically modified boron-doped diamond electrode with Pd and Pd-Sn nanoparticles for ethanol electrooxidationen
dc.typeArticle (peer-reviewed)en
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