Mechanism and equivalent circuit of two consecutive irreversible electron transfers

Abstract

The main objective of this paper is to model the faradaic impedance associated with two consecutive single electron transfer mechanisms of the electrochemical reaction by an appropriate electrical equivalent circuit. In the first step, we have developed an electrical equivalent circuit in order to find the complex faradaic impedance of the electrochemical reaction. Thus, the identification of both complex impedances allowed us to deduce the electrical parameters as a function of the kinetic parameters. In the second step, the visually obvious feature is inductive behavior is of interest for the mechanisms of two consecutive irreversible electron transfers located at low frequency, which implies is a low process.