EFFECT OF PH ON THE MEDIATED OXIDATION OF [FE(CN)6](4-) AT POLYANILINE FILM ELECTRODES - AN IMPEDANCE STUDY

Authors
DESLOUIS C MUSIANI MM ELRHAZI M TRIBOLLET B
Citation
C. Deslouis et al., EFFECT OF PH ON THE MEDIATED OXIDATION OF [FE(CN)6](4-) AT POLYANILINE FILM ELECTRODES - AN IMPEDANCE STUDY, Synthetic metals, 60(3), 1993, pp. 269-278
Citations number
19
Categorie Soggetti
Physics, Condensed Matter","Metallurgy & Mining
Journal title
Synthetic metals → ACNP
ISSN journal
03796779
Volume
60
Issue
3
Year of publication
1993
Pages
269 - 278
Database
ISI
SICI code
0379-6779(1993)60:3<269:EOPOTM>2.0.ZU;2-0
Abstract
The [Fe(CN)6]4- oxidation at polyaniline (PANI) modified electrodes wa s studied by electrohydrodynamical (EHD) and a.c. impedances at modera te acid concentrations (pH range 2-3). Experimental diagrams were obta ined for different values of pH, potential, [Fe(CN)6]4- concentration, electrode rotation rate and film thickness and compared with a kineti c model developed by taking into account PANI acid-base equilibria. Th is model accounts for low frequency relaxation observed by both impeda nce techniques and explains in a semiquantitative way the influence of the experimental parameters.