Modeling Electrochemical Impedance Spectroscopy Results of Cu and Cu-Thiosemicarbizide-Boron Nitride Nanosheets Electrodes in 3.5 wt% NaCl Solution, Based on an Electrochemical Reaction Mechanism

The corrosion behavior of copper and copper-functionalized boron nitride nanocomposites (Cu-BNNS) was studied in a 3.5 wt.% NaCl solution. Polarization curves cyclic voltammetry experiments were used to differentiate the various stages behavior. Additionally, electrochemical impedance spectroscopy (EIS) understand different steps degradation mechanism. EIS results analyzed using adsorption models at open circuit potential bias 250 mV, reaction kinetics parameters quantified. During first hour immersion, formation CuCl increased on Cu-BNNS, where constant for adsorbed lower model. However, Cu electrode, not formed during hour, higher. proposed model is consistent with experimental observations from voltammetry, polarization, scanning electron microscopy.