A comparison of Marcus-Hush vs. Butler-Volmer electrode kinetics using potential pulse voltammetric techniques

► Voltammetry under Butler-Volmer and Marcus-Hush electrode kinetic models are compared. ► Notable discrepancies are found for slow kinetics, short pulses and microelectrodes. ► These differences can affect significantly the extraction of kinetic parameters. ► Striking phenomena predicted with Butler-Volmer are studied with Marcus-Hush.