Yadollah Yaghoubinezhad - Assistant Professor, Department of Materials Engineering, Birjand University of Technology
Zahra Mahmoodzadeh - Master of Science, Department of Materials Engineering, Semnan University

This paper reports a fast, undemanding, and friendly environmental approach regarding the electrochemical reduction of graphene oxide (GO) by a chronopotentiometry method over the indium tin oxide substrate (ITO). Initially, electrodeposited GO (EDGO) thin film was characterized; indeed, cathodic current densities of 0.3 to 50 mA/cm2 was directly applied between working and counter electrodes, in the phosphate buffer solution with a pH of 9.25, which includes dispersed GO nanosheets. Subsequently, the resistance alterations of the electrochemically reduced GO (ERGO) films were carefully characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Raman spectroscopy, Fourier transform infrared (FTIR) spectroscopy, and sheet resistivity experiments. It was detected that an optimum cathodic current density of 20 mA/cm2 for 150 s can efficiently remove the oxidation functional groups toward GO; moreover, the electrical resistivity of the introduced proper thin film was measured about 43.4 ohm/square

Electrochemical reduction, Graphene, Characterization