Simplified description of electrochemical systems

Abstract

When studying an electrochemical system, the first vital step is to understand the rules that define its current/voltage working point at each instant. This chapter focuses on simple systems to illustrate the thermodynamic and kinetic aspects of the phenomena occurring in those heterogeneous systems. For these purposes, an explanation, though without demonstration, will be given of the two main quantitative laws of basic electrochemistry: NERNST and FARADAY’s laws. Then, on a qualitative level, we will explain how to understand the working points of an electrochemical system thanks to the currentpotential curves.