An Assessment of New Imidazol Derivatives and an Investigation of Their Corrosion-Reducing Characteristics for Carbon Steel in an HCl Acid Solution

This study assessed the corrosion inhibitory and adsorption properties of two imidazol derivatives, namely 5-((2,4,5-triphenyl-1H-imidazol-1-yl)methyl)quinolin-8-ol (TIMQ) 5-((2-(4-chlorophenyl)-4,5-diphenyl-1H-imidazol-1-yl)methyl)quinolin-8-ol (CDIQ), on carbon steel (CS) in 1 M HCl using electrochemical methods, including impedance spectroscopy (EIS), potentiodynamic polarization measurements (PDP), UV–visible (UV–v), scanning electron microscopy (SEM), molecular modeling. The findings showed that TIMQ CDIQ were potent inhibitors with inhibition efficiencies 94.8% 95.8%, respectively. experiments worked as mixed-type inhibitors, investigations supported improvement a protective layer for inhibitor metal surface. Each was adsorbed onto surfaces, according to Langmuir method. shielded from acidic ions by an coating molecules, SEM. Density functional theory (DFT) calculations dynamics (MD) simulations used inspect results, good correlation found between these results those study. information can be applied determine effectiveness acid solution.