TITLE:
Assessment of (2E)-1-(4-Methoxyphenyl)-3-(2-Phenyl H-Imidazo [1, 2-a] Pyridine-3-yl) Prop-2-en-1-One Adsorption for Aluminum Corrosion Inhibition in Hydrochloric Acid: Gravimetric, Thermodynamic, and DFT Study
AUTHORS:
Mbouillé Cissé, Souleymane Bamba, Amadou Kouyaté, Mougo André Tigori, Kouadio Achille Yao, Bini Kouamé Dongui, Paulin Marius Niamien
KEYWORDS:
(2E)-1-(4-Methoxyphenyl)-3-(2-Phenyl H-Imidazo [1, 2-a] Pyridine-3-yl) Prop-2-en-1-One (MPIP), Aluminum Corrosion, Gravimetric Measurements, Density Functional Theory (DFT), Environmentally-Friendly
JOURNAL NAME:
Journal of Materials Science and Chemical Engineering,
Vol.13 No.10,
October
31,
2025
ABSTRACT: The present study evaluates the adsorption properties of (2E)-1-(4-Methoxyphenyl)-3-(2-Phenyl H-Imidazo[1, 2-α] Pyridine-3-yl)prop-2-en-1-one (MPIP) on aluminum corrosion in acid medium (HCl 1 M) at different temperatures. This study was assessed by gravimetric tests and density functional theory (DFT). Gravimetric measurements reveal that the compound’s effectiveness increases with concentration but decreases with increasing temperature, suggesting a predominant physical adsorption mechanism. Thermodynamic analysis confirms the spontaneous and exothermic nature of the process, highlighting Langmuir-type adsorption. Theoretical study based on DFT identified the compound’s descriptor parameters (EHOMO, ELUMO, energy gap, global hardness and softness), corroborating its chemical reactivity and propensity to interact with the metal surface. Finally, experimental and computational results indicate that the compound studied is a promising, environmentally-friendly corrosion inhibitor for the protection of aluminum in acidic environments.