Cyclic voltammetry is the most widely used technique for acquiring qualitative information about electrochemical reactions. It belongs to potentio-dynamic experimental methods. They have evolved of rapid development in the last decades and great expansion in laboratory practice. The reason for this is rapid development of computer-controlled experimental facilities with automated data collection and also the development of a mathematical description of the potentio-dynamic curves. This makes it possible to use these techniques to obtain relatively quickly basic characteristics of studied system, with regard to the mechanism of electrode action. Cyclic voltammetry is characterized by continuous growth potential of the working electrode from one limit to the other and back to the starting point. It follows that the fundamental adjustable parameters of the experiment are limits and feed rate potential. It can be also affected the properties of the electrolyte especially the concentration of electroactive material and temperature. System response is called electrochemical system spectrum.
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