ELECTROCHEMICAL-BEHAVIOR AND ELECTRICAL PERCOLATION IN GRAPHITE-EPOXYELECTRODES

Authors
NAVARRO J ROIG A NOGUERA P VICENTE F VILAPLANA J LOPEZ J
Citation
J. Navarro et al., ELECTROCHEMICAL-BEHAVIOR AND ELECTRICAL PERCOLATION IN GRAPHITE-EPOXYELECTRODES, Journal of Materials Science, 29(17), 1994, pp. 4604-4610
Citations number
28
Categorie Soggetti
Material Science
Journal title
Journal of Materials Science → ACNP
ISSN journal
00222461
Volume
29
Issue
17
Year of publication
1994
Pages
4604 - 4610
Database
ISI
SICI code
0022-2461(1994)29:17<4604:EAEPIG>2.0.ZU;2-F
Abstract
The electrochemical properties of mouldable graphite-epoxy composite e lectrodes have been studied as a function of graphite content. The sha pe of ferri-ferrocyanide voltammograms relates to the ratio of graphit e and an adsorption process. The dielectric constant from spectroelect rochemical impedance measurement of this composite electrode is maximu m when the proportion of graphite is ca. 60 wt%. An electrochemical eq uivalent circuit is proposed. The graphite-epoxy composite acts as a m ulti-microelectrode near this proportion.