One-step Electrodeposition of Graphene- Chitosan Biocompatible Nanocomposite Coating onto Stainless Steel

In this research, it was studied a direct one-step electrodeposition approach to synthesis of chitosan-graphene biocompatible nanocomposite coating onto stainless steel by cyclic voltammetric electrolysis of a bath containing both graphene oxide and chitosan. Graphene is obtained by electrochemical reduction of graphene oxide. In addition, chitosan is simultaneously obtained by electrophoretic. Cyclic voltametry, SEM, TEM and Raman spectroscopy were used to characterize the obtained coating. The results show that the chitosan-graphene nanocomposite coating was electrodeposited on the stainless steel in one step. The D-band at 1290 cm 1 and the broad G-band at 1580 cm-1 in the Raman spectra demonstrate the presence of graphene nanoparticles in the coating.