Warburg impedance is typically measured using Electrochemical Impedance Spectroscopy (EIS). In an EIS experiment, an AC voltage is applied to the electrochemical system, and the resulting current response is measured over a range of frequencies. The impedance is then plotted as a function of frequency in a Nyquist plot or Bode plot. This allows for the identification of Warburg impedance as a characteristic linear segment in the low-frequency region of the Nyquist plot, indicating diffusion-controlled processes.
