Corrosion inhibition and adsorption features of novel bioactive cationic surfactants bearing benzenesulphonamide on C1018-steel under sweet conditions: Combined modeling and experimental approaches
By El-Lateef, Hany M. Abd; Shalabi, K.; Tantawy, Ahmed H.
Published in Journal of Molecular Liquids
Journal of Molecular Liquids
2020
Abstract
In this report, three novel sulphonamides based cationic surfactants have been produced, and their structure configurations were clarified by various spectroscopic approaches (13C and 1H NMR). The corrosion protection characteristics of the as-prepared compounds for C1018-steel in carbon dioxide saturated 3.5% NaCl has been inspected and categorized by weight loss, Tafel polarization (PDP), electrochemical impedance spectroscopy (EIS), X-ray photoelectron spectroscopy (XPS), field emission-scanning electron microscopy (FE-SEM), and energy-dispersive X-ray spectroscopy (EDX) methods. Furthermore, conductivity and surface-active features were applied to examine their micellization and adsorption. The outcomes exhibited that these bioactive inhibitors at low doses had a worthy protection capacity on C1018-steel corrosion under sweet conditions ranged from 94.5 to 99.5% at 5