Posted by β-CD was esterified independently with two distinct ionic liquids to evaluate their potential as corrosion inhibitors for carbon steel in a 1.0 M HCl solution. Experimental and computational methods were used to assess the inhibitors’ efficiency regarding temperature and concentration effects and to elucidate the adsorption mechanism. Thermodynamic parameters and surface coverage data further confirmed the inhibitor’s adsorption on the metal surface. Both inhibitors acted as barriers, with a maximum inhibition efficiency of about 94 % at 200 ppm. There was a direct relationship between the inhibitor’s concentration and their efficiency, while increasing the temperature reduced the inhibitors’ effectiveness.
Reactions with 1-Carboxymethyl-3-methylimidazolium Chloride (CIm-Cl) and (Carboxymethyl)pyridinium Chloride (CPy-Cl)
Maryam Bagheri, Parviz Norouzi, Ali Nemati Kharat (2025) Exploration of modified β-cyclodextrin compounds as enhanced eco-friendly and easily accessible corrosion inhibitors for carbon steel in hydrochloric acid. Journal of Molecular Structure 1321, 140022.
https://doi.org/10.1016/j.molstruc.2024.140022