Abstract

The quinolin-8-ol derivative, namely, 5-((4,5-dihydro-4-o-tolyltetrazol-1-yl)methyl)quinolin-8-ol (TTQ), was synthesized, identified, and applied as a potential corrosion inhibitor for carbon steel (C22E) in molar hydrochloric acid (1 M HCl). The effect of TTQ on the corrosion of C22E steel in 1 M HCl was assessed using empirical and experimental methods. According to research, the effectiveness of inhibition increased with increasing TTQ concentration, peaked at 91.7% at 0.001 M, and then decreased further as temperature increased. The polarization patterns show how the TTQ behaves in an inhibitory mixed-type manner. The chemisorption of TTQ molecules on the C22E steel interface is a spontaneous process that obeys the Langmuir adsorption isotherm. Thermodynamic and kinetic variables were valued and explained. Uv–visible investigation assured chemical interactions between TTQ molecules and C22E steel, while the SEM/EDX observations emphasized that the C22E steel surface was preserved from corrosion by the adsorption of TTQ molecules. Theoretical approaches (DFT and MDS) show a high reactivity of the structure of studied molecules with the Fe (1 1 0) surface.

Title

Ismail

Publisher

warad

Publisher Country

Palestine

Publication Type

Prtinted only

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Year

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