Novel gemini cationic thiazole-based surfactants as carbon steel corrosion inhibitors in 1 M HCl using experimental and theoretical tools
Abstract This paper examines two novel Gemini cationic surfactants based on thiazole derivatives (TAC) as anticorrosion compounds for carbon steel in 1 M HCl. This task was achieved using a diversity of tools, comprising mass loss (ML), potentiodynamic polarization (PP), electrochemical impedance sp...
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Nature Portfolio
2025-05-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-02173-x |
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| author | Samir A. Abd El-Maksoud Mohamed A. Migahed Mahmoud M. Gouda Farid I. El-Dossoki |
| author_facet | Samir A. Abd El-Maksoud Mohamed A. Migahed Mahmoud M. Gouda Farid I. El-Dossoki |
| author_sort | Samir A. Abd El-Maksoud |
| collection | DOAJ |
| description | Abstract This paper examines two novel Gemini cationic surfactants based on thiazole derivatives (TAC) as anticorrosion compounds for carbon steel in 1 M HCl. This task was achieved using a diversity of tools, comprising mass loss (ML), potentiodynamic polarization (PP), electrochemical impedance spectroscopy (EIS), scanning electron (SEM) microscope, energy dispersive X-ray (EDX), Fourier transform infrared spectroscopy (FTIR), and computational density functional (DFT) theory. The shift in corrosion potential revealed the compounds’ efficacy as cathodic inhibitors. The impedance measurement confirmed that a shielding film had formed on the carbon steel. The inhibitory action was found to be increased with increasing the inhibitor concentration which reached 79% for TAC 6 and 87% for TAC 18 at 50 ppm, while it slightly decreased with raising the temperature from 303 to 323 K. The mechanism of adsorption minds the Langmuir adsorption isotherm. The mixed physical and chemical adsorption of the inhibitors on the steel surface was confirmed by thermodynamics and kinetic characteristics. Electrochemical techniques examined the synergism inhibition of both inhibitors in the presence of inorganic salts at 303 K which indicated to follow CuCl2 > MnCl2 > CoCl2. The synergetic inhibition of both inhibitors in the presence of CuCl2 reached 96% for TAC 6 and 97% for TAC 18. Both inhibitors in the presence of salts were changed to act as mixed-type inhibitors. |
| format | Article |
| id | doaj-art-d205bc6ea9be428898e2e120d53c9ab1 |
| institution | OA Journals |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Nature Portfolio |
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| spelling | doaj-art-d205bc6ea9be428898e2e120d53c9ab12025-08-20T01:53:23ZengNature PortfolioScientific Reports2045-23222025-05-0115112910.1038/s41598-025-02173-xNovel gemini cationic thiazole-based surfactants as carbon steel corrosion inhibitors in 1 M HCl using experimental and theoretical toolsSamir A. Abd El-Maksoud0Mohamed A. Migahed1Mahmoud M. Gouda2Farid I. El-Dossoki3Chemistry Department, Faculty of Science, Port-Said UniversityPetroleum Applications Department, Egyptian Petroleum Research Institute (EPRI)Chemistry Department, Faculty of Science, Port-Said UniversityChemistry Department, Faculty of Science, Port-Said UniversityAbstract This paper examines two novel Gemini cationic surfactants based on thiazole derivatives (TAC) as anticorrosion compounds for carbon steel in 1 M HCl. This task was achieved using a diversity of tools, comprising mass loss (ML), potentiodynamic polarization (PP), electrochemical impedance spectroscopy (EIS), scanning electron (SEM) microscope, energy dispersive X-ray (EDX), Fourier transform infrared spectroscopy (FTIR), and computational density functional (DFT) theory. The shift in corrosion potential revealed the compounds’ efficacy as cathodic inhibitors. The impedance measurement confirmed that a shielding film had formed on the carbon steel. The inhibitory action was found to be increased with increasing the inhibitor concentration which reached 79% for TAC 6 and 87% for TAC 18 at 50 ppm, while it slightly decreased with raising the temperature from 303 to 323 K. The mechanism of adsorption minds the Langmuir adsorption isotherm. The mixed physical and chemical adsorption of the inhibitors on the steel surface was confirmed by thermodynamics and kinetic characteristics. Electrochemical techniques examined the synergism inhibition of both inhibitors in the presence of inorganic salts at 303 K which indicated to follow CuCl2 > MnCl2 > CoCl2. The synergetic inhibition of both inhibitors in the presence of CuCl2 reached 96% for TAC 6 and 97% for TAC 18. Both inhibitors in the presence of salts were changed to act as mixed-type inhibitors.https://doi.org/10.1038/s41598-025-02173-xInhibitorsCorrosionAdsorptionSurfactantSynergistic |
| spellingShingle | Samir A. Abd El-Maksoud Mohamed A. Migahed Mahmoud M. Gouda Farid I. El-Dossoki Novel gemini cationic thiazole-based surfactants as carbon steel corrosion inhibitors in 1 M HCl using experimental and theoretical tools Scientific Reports Inhibitors Corrosion Adsorption Surfactant Synergistic |
| title | Novel gemini cationic thiazole-based surfactants as carbon steel corrosion inhibitors in 1 M HCl using experimental and theoretical tools |
| title_full | Novel gemini cationic thiazole-based surfactants as carbon steel corrosion inhibitors in 1 M HCl using experimental and theoretical tools |
| title_fullStr | Novel gemini cationic thiazole-based surfactants as carbon steel corrosion inhibitors in 1 M HCl using experimental and theoretical tools |
| title_full_unstemmed | Novel gemini cationic thiazole-based surfactants as carbon steel corrosion inhibitors in 1 M HCl using experimental and theoretical tools |
| title_short | Novel gemini cationic thiazole-based surfactants as carbon steel corrosion inhibitors in 1 M HCl using experimental and theoretical tools |
| title_sort | novel gemini cationic thiazole based surfactants as carbon steel corrosion inhibitors in 1 m hcl using experimental and theoretical tools |
| topic | Inhibitors Corrosion Adsorption Surfactant Synergistic |
| url | https://doi.org/10.1038/s41598-025-02173-x |
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