Electrochemical and Theoretical Study of Corrosion Inhibition on X60 Steel in H2SO4 Solution by Omeprazole

The corrosion inhibition performance of Omeprazole (OMP) on X60 steel in 0.5M H 2 SO 4 solution was studied by electrochemical impedance spectroscopy and electrochemical polarization curves. These tests are complemented by theoretical calculations using molecular dynamics. The corrosion inhibition efficiency increases with the concentration of OMP, a hybrid corrosion inhibitor that adsorbs on X60 steel following the Langmuir adsorption isotherm. The adsorption configuration calculated by molecular dynamics showed that the OMP molecules were arranged in parallel on the surface of X60 steel, which ensured its excellent inhibition performance.