Study of Ferricyanide by Cyclic Voltammetry Using the CV-50W

couple is used as an example of an electrochemically reversible redox system in order to introduce some of the basic concepts of cyclic voltammetry (1,2). The CV-50W is ideal for teaching purposes. The instrument is simple to use, and its Windows-based software can be quickly mastered by students with little or no background in electrochemistry. The experiment outlined below demonstrates the determination of the following: the formal reduction potential (E0’); the number of electrons transferred in the redox process (n); the diffusion coefficient (D); electrochemical reversibility; and the effects of varying concentration (C) and scan rate (ν). Experimental