A Study of the Inhibition of Iron Corrosion by Glutamic Acid Derivatives Self-Assembled Films

The Self-Assembled (SA) films of glutamic acid derivatives were prepared on the iron surface. Electrochemical impedance spectroscopy (EIS) and polarization techniques were used to investigate the protection abilities of these films against iron corrosion in 0.1 M H2SO4 solution. The results of EIS and polarization curves indicated that films of the glutamic acid derivatives were able to protect iron from corrosion effectively.