Overview
ABSTRACT
This article deals with the theoretical basis of the current-potential characteristics at a solid electrode of simple redox couples (noted Red/Ox) in solution, by considering on the one hand the kinetics of electron transfer at the electrode/solution interface, and on the other hand the intervention of the transport of material in solution both in the stationary convective diffusion regime and in the pure natural diffusion regime. This article also presents the essential guidelines for the experimental implementation of the studied voltammetric techniques (electrode materials, equipment, domain of electroactivity, etc.).
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Fethi BEDIOUI: Engineer ENSCP (École Nationale Supérieure de Chimie de Paris) - Doctor of Science - CNRS Research Director
INTRODUCTION
In this paper, we present the theoretical basis of current-potential characteristics at a solid electrode by addressing:
on the one hand, the kinetics of simple charge transfer ;
secondly, the involvement of matter transport in stationary convective diffusion and pure natural diffusion regimes.
We also present the implementation of voltammetric techniques (electrode materials, equipment, electroactivity range, etc.).
We also show how chronoamperometry and chronopotentiometry are derived from voltammetry, by referring to the corresponding articles.
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KEYWORDS
Pure diffusion | Stationary convective diffusion | Cyclic voltammetry | Hydrodynamic voltammetry
Voltammetry on solid electrode
Current-potential characteristics at a solid electrode
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