Exchange current density can be determined using several electrochemical techniques, the most common of which is Tafel analysis. This involves plotting the overpotential (η) against the logarithm of the current density (i) in a Tafel plot. The intercept of this plot at zero overpotential gives the logarithm of the exchange current density. Other methods include electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV), which can offer additional insights into the kinetics of the electrochemical process.
