Chemical cleaning of heat exchanger components and the efficacy of a novel cationic gemini surfactant in inhibiting corrosion
Year: 2025
Type: article
Abstract: The feasibility of a novel cationic gemini surfactant (NCGS) in inhibiting hydrochloric acid corrosion of carbon steel (CS) in a 1.0 M solution has been examined. The effectiveness was established by potentiodynamic polarization (PP), electrochemical impedance spectroscopy (EIS), and weight loss (WL). Temperature has an impact on inhibitory effectiveness; once NCGS concentration rises, it goes up, but as the temperature goes down, it goes down. The NCGS molecule was shown to adsorb onto the CS surface, which caused the inhibition. An inhibitor of NCGS’s inhibitory action of mixed type is shown using the potentiodynamic polarization method. Impedance changes showed that the inhibitor’s adsorption led to the creation of a barrier of protection on the NCGS surfaces. When adsorbed onto CS surfaces, NCGS behaves according to the Langmuir isotherm. It was used to calculate and study thermodynamic and kinetic characteristics. Electron microscopy (EDX) and SEM verified the CS’s surface morphology.
Source: Journal of Molecular Liquids
Authors: S.B. Mahmoud, E.M. Ezzo, M. Mohamed, M.A. Hegazy
Institutions: Ain Shams University, Egyptian Petroleum Research Institute
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,480
OpenAlex ID: W4409254549