Abstract
We have synthesized a ternary glycine-functionalized graphene/Fe(3)O(4)nanocomposite referred as Gr/Fe@Gly NC which was characterized by fourier transform infrared spectroscopy analysis (FT-IR), X-ray diffraction, high-resolution scanning electron microscopy/energy-dispersive X-ray spectroscopy (HR-SEM/EDS) and the transmission electron microscopy. The effectiveness of synthesized nanocomposite as anticorrosive material for mild steel in the acid medium was assessed using weight loss, electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PDP) complemented with FT-IR and SEM studies. The results of weight loss study depicted its effectiveness and stability up to 60 degrees C at very low concentrations. FT-IR and SEM studies supported the existence of a protective film on the inhibited steel surface. The adsorption followed the Langmuir adsorption isotherm; as such, it approximated and defined the thermodynamic and kinetic parameters governing the adsorption process. ANOVA statistical check confirmed that there is statistically no significant difference between the inhibition efficiencies obtained through weight loss, PDP and EIS techniques.