1. Definitions
The general principle of voltammetry is to obtain the response (current) of the system under study to the excitation (potential) responsible for the desired electrochemical reaction. This is achieved by exploration through imposition and progressive variation of the electrode potential (potential sweep).
In order to impose and vary the electrode potential, and thus produce electrochemical reactions, it is necessary to operate in an electrolytic cell comprising three electrodes to which an external circuit is connected. The potential of the main electrode, the so-called indicator electrode (or working electrode), where the desired reactions are to take place, can be controlled with the aid of a reference electrode. Electrolysis is then manifested by the flow of an electric current, the intensity of which can be measured on...
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