2-Amino-6-methylbenzothiazole as corrosion inhibitor for low carbon steel in acidic solution: Experimental and theoretical studies
The corrosion susceptibility of S235 steel samples in 1 M HCl solution, with and without addition of 2-amino-6-methylbenzothiazole (AMBT) was evaluated using weight loss (WL), chronopotentiometry, electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization (PD) techniques. The cor...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-01-01
|
| Series: | Results in Chemistry |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211715624006180 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832583106682421248 |
|---|---|
| author | Klodian Xhanari Muhamed Farruku Avni Berisha Bujar Seiti Kledi Xhaxhiu Efrosini Kokalari Alketa Lame |
| author_facet | Klodian Xhanari Muhamed Farruku Avni Berisha Bujar Seiti Kledi Xhaxhiu Efrosini Kokalari Alketa Lame |
| author_sort | Klodian Xhanari |
| collection | DOAJ |
| description | The corrosion susceptibility of S235 steel samples in 1 M HCl solution, with and without addition of 2-amino-6-methylbenzothiazole (AMBT) was evaluated using weight loss (WL), chronopotentiometry, electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization (PD) techniques. The corrosion inhibition efficiency of AMBT was investigated at 298 to 318 K, with and without addition of 0.5 wt.% KI. The highest corrosion inhibition efficiency (i.e. 83.30%) was achieved upon addition of 5 mM AMBT. PD curve measurements after 24 h immersion revealed that AMBT behaves as a mixed-type inhibitor, predominantly affecting the cathodic corrosion reaction. Thermodynamic calculations showed that AMBT adheres to the Langmuir adsorption isotherm. Attenuated total reflectance Fourier transform infrared (ATR-FTIR) was used to confirm the adsorption of AMBT, while its influence on the morphology of the S235 steel samples was also investigated by scanning electron microscopy (SEM). Density Functional Theory (DFT) calculations, along with Monte Carlo (MC) and Molecular Dynamics (MD) simulations, were employed to investigate AMBT’s corrosion inhibition behaviour at the molecular level. The simulations confirmed that AMBT strongly adsorbs on the Fe(110) surface through a combination of physisorption and chemisorption mechanisms. This study offers detailed insights into AMBT’s effectiveness as a corrosion inhibitor. |
| format | Article |
| id | doaj-art-9c49296119dd48aa941a265c1b0f753c |
| institution | Kabale University |
| issn | 2211-7156 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Chemistry |
| spelling | doaj-art-9c49296119dd48aa941a265c1b0f753c2025-01-29T05:00:35ZengElsevierResults in Chemistry2211-71562025-01-01131019222-Amino-6-methylbenzothiazole as corrosion inhibitor for low carbon steel in acidic solution: Experimental and theoretical studiesKlodian Xhanari0Muhamed Farruku1Avni Berisha2Bujar Seiti3Kledi Xhaxhiu4Efrosini Kokalari5Alketa Lame6Faculty of Natural Sciences, University of Tirana, Boulevard “Zogu I”, Tirana 1016, Albania; Corresponding author.Faculty of Natural Sciences, University of Tirana, Boulevard “Zogu I”, Tirana 1016, AlbaniaFaculty of Natural and Mathematics Science, University of Pristina, Pristina 10000, KosovoFaculty of Natural Sciences, University of Tirana, Boulevard “Zogu I”, Tirana 1016, AlbaniaFaculty of Natural Sciences, University of Tirana, Boulevard “Zogu I”, Tirana 1016, AlbaniaFaculty of Natural Sciences, University of Tirana, Boulevard “Zogu I”, Tirana 1016, AlbaniaFaculty of Natural Sciences, University of Tirana, Boulevard “Zogu I”, Tirana 1016, AlbaniaThe corrosion susceptibility of S235 steel samples in 1 M HCl solution, with and without addition of 2-amino-6-methylbenzothiazole (AMBT) was evaluated using weight loss (WL), chronopotentiometry, electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization (PD) techniques. The corrosion inhibition efficiency of AMBT was investigated at 298 to 318 K, with and without addition of 0.5 wt.% KI. The highest corrosion inhibition efficiency (i.e. 83.30%) was achieved upon addition of 5 mM AMBT. PD curve measurements after 24 h immersion revealed that AMBT behaves as a mixed-type inhibitor, predominantly affecting the cathodic corrosion reaction. Thermodynamic calculations showed that AMBT adheres to the Langmuir adsorption isotherm. Attenuated total reflectance Fourier transform infrared (ATR-FTIR) was used to confirm the adsorption of AMBT, while its influence on the morphology of the S235 steel samples was also investigated by scanning electron microscopy (SEM). Density Functional Theory (DFT) calculations, along with Monte Carlo (MC) and Molecular Dynamics (MD) simulations, were employed to investigate AMBT’s corrosion inhibition behaviour at the molecular level. The simulations confirmed that AMBT strongly adsorbs on the Fe(110) surface through a combination of physisorption and chemisorption mechanisms. This study offers detailed insights into AMBT’s effectiveness as a corrosion inhibitor.http://www.sciencedirect.com/science/article/pii/S2211715624006180Corrosion inhibitorLow carbon steelAcid corrosionAzole derivativeWeight lossElectrochemical methods |
| spellingShingle | Klodian Xhanari Muhamed Farruku Avni Berisha Bujar Seiti Kledi Xhaxhiu Efrosini Kokalari Alketa Lame 2-Amino-6-methylbenzothiazole as corrosion inhibitor for low carbon steel in acidic solution: Experimental and theoretical studies Results in Chemistry Corrosion inhibitor Low carbon steel Acid corrosion Azole derivative Weight loss Electrochemical methods |
| title | 2-Amino-6-methylbenzothiazole as corrosion inhibitor for low carbon steel in acidic solution: Experimental and theoretical studies |
| title_full | 2-Amino-6-methylbenzothiazole as corrosion inhibitor for low carbon steel in acidic solution: Experimental and theoretical studies |
| title_fullStr | 2-Amino-6-methylbenzothiazole as corrosion inhibitor for low carbon steel in acidic solution: Experimental and theoretical studies |
| title_full_unstemmed | 2-Amino-6-methylbenzothiazole as corrosion inhibitor for low carbon steel in acidic solution: Experimental and theoretical studies |
| title_short | 2-Amino-6-methylbenzothiazole as corrosion inhibitor for low carbon steel in acidic solution: Experimental and theoretical studies |
| title_sort | 2 amino 6 methylbenzothiazole as corrosion inhibitor for low carbon steel in acidic solution experimental and theoretical studies |
| topic | Corrosion inhibitor Low carbon steel Acid corrosion Azole derivative Weight loss Electrochemical methods |
| url | http://www.sciencedirect.com/science/article/pii/S2211715624006180 |
| work_keys_str_mv | AT klodianxhanari 2amino6methylbenzothiazoleascorrosioninhibitorforlowcarbonsteelinacidicsolutionexperimentalandtheoreticalstudies AT muhamedfarruku 2amino6methylbenzothiazoleascorrosioninhibitorforlowcarbonsteelinacidicsolutionexperimentalandtheoreticalstudies AT avniberisha 2amino6methylbenzothiazoleascorrosioninhibitorforlowcarbonsteelinacidicsolutionexperimentalandtheoreticalstudies AT bujarseiti 2amino6methylbenzothiazoleascorrosioninhibitorforlowcarbonsteelinacidicsolutionexperimentalandtheoreticalstudies AT kledixhaxhiu 2amino6methylbenzothiazoleascorrosioninhibitorforlowcarbonsteelinacidicsolutionexperimentalandtheoreticalstudies AT efrosinikokalari 2amino6methylbenzothiazoleascorrosioninhibitorforlowcarbonsteelinacidicsolutionexperimentalandtheoreticalstudies AT alketalame 2amino6methylbenzothiazoleascorrosioninhibitorforlowcarbonsteelinacidicsolutionexperimentalandtheoreticalstudies |