The Inhibitory Effect of Amoxicillin on Aluminum Corrosion in a Gel Electrolyte

In this study, the effect of amoxicillin as a green corrosion inhibitor on aluminum alloy 6061 in an agar medium containing sodium chloride (NaCl), as the gel electrolyte, was investigated using electrochemical impedance spectroscopy (EIS) and Tafel extrapolation method (TEM) at room temperature during immersion time intervals. The results revealed that the gel electrolyte reacted better than electrolyte solutions to reduce corrosion. Measured by EIS, it was demonstrated that inhibition efficiency (IE) increased during time. To ascertain investigation more, TEM was done just once on the last day of the measurements confirming the role of amoxicillin in reduction of corrosion activity in the gel electrolyte.