Mechanistic insights into carbon steel corrosion inhibition by benzodiazepine derivatives in hydrochloric acid

Abstract

, with adsorption behaviour following the Langmuir isotherm model. Polarisation results indicated a mixed-type inhibition mechanism, while surface analyses confirmed the formation of a compact and adherent protective film on the steel surface. Density functional theory and molecular dynamics simulations provided molecular-level insights into the adsorption configurations and interaction strength of the inhibitors on the Fe(110) surface, in good agreement with the experimental observations. Overall, these findings demonstrate the effectiveness of benzodiazepine-based frameworks as promising molecular inhibitors for carbon steel corrosion in acidic media.