Novel cationic gemini surfactant as a corrosion inhibitor for carbon steel tubes during the pickling process: synthesis, surface properties and adsorption behavior
El-Tabei, A., Hegazy, M., Bedair, A., Sadeq, M. (2020). Novel cationic gemini surfactant as a corrosion inhibitor for carbon steel tubes during the pickling process: synthesis, surface properties and adsorption behavior. EKB Journal Management System, 63(10), 3685-3701. doi: 10.21608/ejchem.2020.23774.2413
Aziza El-Tabei; Mohamed Hegazy; Ahmed Bedair; Mahmoud Sadeq. "Novel cationic gemini surfactant as a corrosion inhibitor for carbon steel tubes during the pickling process: synthesis, surface properties and adsorption behavior". EKB Journal Management System, 63, 10, 2020, 3685-3701. doi: 10.21608/ejchem.2020.23774.2413
El-Tabei, A., Hegazy, M., Bedair, A., Sadeq, M. (2020). 'Novel cationic gemini surfactant as a corrosion inhibitor for carbon steel tubes during the pickling process: synthesis, surface properties and adsorption behavior', EKB Journal Management System, 63(10), pp. 3685-3701. doi: 10.21608/ejchem.2020.23774.2413
El-Tabei, A., Hegazy, M., Bedair, A., Sadeq, M. Novel cationic gemini surfactant as a corrosion inhibitor for carbon steel tubes during the pickling process: synthesis, surface properties and adsorption behavior. EKB Journal Management System, 2020; 63(10): 3685-3701. doi: 10.21608/ejchem.2020.23774.2413

Novel cationic gemini surfactant as a corrosion inhibitor for carbon steel tubes during the pickling process: synthesis, surface properties and adsorption behavior

Egyptian Journal of Chemistry
Article 9, Volume 63, Issue 10, October 2020, Page 3685-3701  XML PDF (2.03 MB)
Document Type: Original Article
DOI: 10.21608/ejchem.2020.23774.2413
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Authors
Aziza El-Tabeiorcid 1; Mohamed Hegazy email orcid 1; Ahmed Bedair2; Mahmoud Sadeq2
1Egyptian Petroleum Research Institute (EPRI), Nasr City, Cairo, Egypt
2Faculty of Science, Azhar Univ., Chemistry Dept., Nasr City, Cairo, Egypt
Abstract
Synthesis, surface parameters and corrosion inhibition efficiency (η) of novel cationic gemini surfactant (NCGSN) (namely: N-(3-(2-((5-(2-(4-(dodecyldimethylammonio)butoxy)-2-oxoethoxy)naphthalen-1-yl)oxy)acetoxy)propyl)-N,N-dimethyldodecan-1-aminium bromide) were studied and discussed. The η of carbon steel (CS) was determined by weight loss (WL), electrochemical impedance spectroscopy (EIS) & potentiodynamic polarization (PP) in the absence and presence of NCGSN. The η and charge transfer resistance (Rct) increases with increasing the NCGSN concentration and decreases with increasing the temperature. Kinetic and adsorption thermodynamic values showed that the η occurs through adsorption of NCGSN molecules on CS surface according to Langmuir isotherm. The PP results proposed the NCGSN regards a mixed-type inhibitor. Chemical and electrochemical results confirmed by SEM and EDX results which recommended the NCGSN adsorption occurs due to the barrier film formed on CS surface.
Keywords
carbon steel; Surfactant; Acid inhibition; weight loss; EIS; Tafel; EDX
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