Measuring the impact on impedance spectroscopy of pseudo-reference electrode accumulations

dc.contributor.authorSawhney, M. A.
dc.contributor.authorAzzopardi, E. A.
dc.contributor.authorRodrigues Teixeira, Sofia
dc.contributor.authorFrancis, L. W.
dc.contributor.authorConlan, R. S.
dc.contributor.authorGazze, S. A.
dc.contributor.funderEuropean Regional Development Funden
dc.contributor.funderSwansea Universityen
dc.contributor.funderNatural and Environmental Research Council, UKen
dc.contributor.funderWelsh Governmenten
dc.date.accessioned2019-12-04T11:17:15Z
dc.date.available2019-12-04T11:17:15Z
dc.date.issued2019-07-30
dc.description.abstractSilver is widely used on screen-printed electrodes (SPEs) to provide a reference potential for electrochemical measurements such as impedance spectroscopy (EIS). The redox activity between silver and electrolyte in SPE-based experiments is rarely reported in detail, despite the critical reliance of potentiometric measurement accuracy on the predictability of reactions at reference electrodes. In this work, potassium ferrous cyanides typically used as electrolyte components were shown to adsorb to the silver surface when applied to SPEs. EIS was performed in a two-electrode configuration to demonstrate redox instability at the silver electrode, highlighting the need for evaluation of similar systems to prevent reference potential drift caused by side reaction depositions.en
dc.description.sponsorshipNatural and Environmental Research Council, UK (grant number NE/K004212/1)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid106508en
dc.identifier.citationSawhney, M. A., Azzopardi, E. A., Rodrigues Teixeira, S., Francis, L. W., Conlan, R. S. and Gazze, S. A. (2019) 'Measuring the impact on impedance spectroscopy of pseudo-reference electrode accumulations', Electrochemistry Communications, 105, 106508. (5pp.) doi: 10.1016/j.elecom.2019.106508en
dc.identifier.doi10.1016/j.elecom.2019.106508en
dc.identifier.eissn1873-1902
dc.identifier.endpage5en
dc.identifier.issn1388-2481
dc.identifier.journaltitleElectrochemistry Communicationsen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/9317
dc.identifier.volume105en
dc.language.isoenen
dc.publisherElsevier Inc.en
dc.rights©019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/BY/4.0/).en
dc.rights.urihttp://creativecommons.org/licenses/BY/4.0/en
dc.subjectPseudo reference electrodeen
dc.subjectSilveren
dc.subjectHexacyanoferrateen
dc.subjectFerricyanideen
dc.titleMeasuring the impact on impedance spectroscopy of pseudo-reference electrode accumulationsen
dc.typeArticle (peer-reviewed)en
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