Role of sacrificial agent in improving electrode-electrolyte interface kinematics in electrochemical devices.

In the present study, the kinematics of Cadmium Sulphide (CdS) nanoparticles based working electrode were studied as an effect of sacrificial agent in electrolyte. Transmission Electron Microscopy (TEM) reveals the hexagonal morphology of CdS NPs with average particle size measured of 12.04±2.79 nm. The improvement in electrochemical behavior of CdS NPs deposited on Ni foam as an effect of sacrificial agent is investigated using Cyclic Voltammetry (CV), Linear Sweep Voltammetry (LSV) and Electrochemical Impedance Spectroscopy (EIS). On the addition of 0.1 M Na2S as a sacrificial agent in 0.5M Na2SO4 electrolyte solution, enhancement in the current density and lowering of onset potentials for electrochemical cycle has been observed. Also, decrease in series and charge transfer resistance has been observed, thus depicting the improvement in electrode and electrolyte interface kinematics as a result of addition of sacrificial agent. [ABSTRACT FROM AUTHOR]