ELECTROCHEMICAL BEHAVIOUR OF FERROCENE L-B FILM MODIFIED SnO2 ELECTRODE

Abstract

The electrochemical behaviour of SnO2 electrode modified with L-B films of ferrocenederivative (FcOCOC17H35) has been studied in Fe(CN)63-/4- solution.By measuring theelectrochemical kinetic parameters i.e.rate constant of electrode reaction Ks, the chargetransfer mediation of modified molecules at SnO2/Fe(CN)63-/4- interface was analyzed.Decrease in Ks for SnO2 electrode modified with mono- or multi-layers of ferrocenederivative L-B film indicated that faster electron transfer is expected only in such amodified molecule which can act as a fast charge transfer mediator at SnO2/Fe (CN)63-/4- interface.