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RESEARCH PRODUCT
Electrochemical behaviour and electrical percolation in graphite-epoxy electrodes
J. NavarroJ. VilaplanaP. NogueraAntoni Francesc RoigFrancisco VicenteJuan Lópezsubject
Materials scienceScanning electron microscopeMechanical EngineeringComposite numberAnalytical chemistryDielectricEpoxyElectrochemistryMechanics of MaterialsPercolationvisual_artElectrodevisual_art.visual_art_mediumGeneral Materials ScienceGraphiteComposite materialdescription
The electrochemical properties of mouldable graphite-epoxy composite electrodes have been studied as a function of graphite content. The shape of ferri-ferrocyanide voltammograms relates to the ratio of graphite and an adsorption process. The dielectric constant from spectroelectrochemical impedance measurement of this composite electrode is maximum when the proportion of graphite is ca. 60 wt%. An electrochemical equivalent circuit is proposed. The graphite-epoxy composite acts as a multi-microelectrode near this proportion.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1994-09-01 | Journal of Materials Science |