plots of TNT, Co-TNT, Black TNT, and Co-Black TNT.
Nyquist plots were obtained in the frequency range of 200 kHz to 0.1
Hz. (b) Mott–Schottky plots in electrochemical impedance spectroscopy.
The Mott–Schottky plots were measured at a fixed frequency
of 200 kHz in aqueous NaClO4 solution (0.1 M).