To investigate the impedance response and double layer structure, vis-à-vis double layer capacitance (Cdl), solution resistance (Rs), and resistance to the charge transfer (Rct) across the interface of these investigated samples, cyclic voltammetry (CV) in the capacitive region and electrochemical impedance spectroscopy (EIS) at open circuit potentials (OCP) within a frequency range of 10 kHz to 0.1 Hz with a small AC perturbation of 0.005 amplitude was performed. The below-discussed equations were used to calculate the Cdl, (ECSA), and roughness (R) of the electrode surfaces.