CV is a widely used experimental technique for determining reaction kinetics in molecular electrocatalysis. Here we consider the simplest case of a molecular electrocatalysis reaction, the EC' mechanism, where E is an electron transfer step at the electrode surface and C' is a catalytic reaction in solution. In the oxidative EC' mechanism shown in Scheme 1, the redox-active catalyst (R) is oxidized to its active form (O), which reacts with a substrate (S) to form the product (P). The catalyst, R, is regenerated during the reaction defined by the bimolecular rate constant kc.