Electrochemical and Quantum Chemical Investigation on Adsorption of Nifedipine as Corrosion Inhibitor at API 5L X-52 Steel / HCl Acid Interface
Nifedipine, a pyridine derivative was investigated as corrosion inhibitor for API 5L X-52 steel in 2 M HCl solution by potentiodynamic polarization, electrochemical impedance spectroscopy and quantum chemical calculations. Statistical tools were used to compare results of the experimental methods. T...
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2020-03-01
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| Series: | Archives of Metallurgy and Materials |
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| Online Access: | https://journals.pan.pl/Content/114512/PDF/AMM-2020-1-15-Ikpi.pdf |
| _version_ | 1798040927755829248 |
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| author | Magdalene Edet Ikpi Fidelis Ebunta Abeng |
| author_facet | Magdalene Edet Ikpi Fidelis Ebunta Abeng |
| author_sort | Magdalene Edet Ikpi |
| collection | DOAJ |
| description | Nifedipine, a pyridine derivative was investigated as corrosion inhibitor for API 5L X-52 steel in 2 M HCl solution by potentiodynamic polarization, electrochemical impedance spectroscopy and quantum chemical calculations. Statistical tools were used to compare results of the experimental methods. The results showed that nifedipine is capable of inhibiting the corrosion of API 5L X-52 steel in 2 M HCl solution. Potentiodynamic polarization results reveal that nifedipine functions as a mixed-type inhibitor and presents an inhibition efficiency of about 78% at 500 ppm. Impedance data reveal an increasing charge transfer resistance with increasing inhibitor concentration and also shows comparable inhibition efficiency of about 89-94% at 500 ppm. Thermodynamic parameters imply that nifedipine is adsorbed on the steel surface by a physiochemical process and obeys Langmuir adsorption isotherm. The calculated molecular properties namely the highest occupied molecular orbital energy, lowest unoccupied molecular orbital energy, chemical hardness, energy gap, dipole moment, electronegativity and global nucleophilicity index all show a positive relationship to the observed corrosion inhibition efficiency. |
| first_indexed | 2024-04-11T22:14:26Z |
| format | Article |
| id | doaj.art-30a32519daa0458ab6481c76d837080c |
| institution | Directory Open Access Journal |
| issn | 2300-1909 |
| language | English |
| last_indexed | 2024-04-11T22:14:26Z |
| publishDate | 2020-03-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Metallurgy and Materials |
| spelling | doaj.art-30a32519daa0458ab6481c76d837080c2022-12-22T04:00:27ZengPolish Academy of SciencesArchives of Metallurgy and Materials2300-19092020-03-01vol. 65No 1125131https://doi.org/10.24425/amm.2019.131105Electrochemical and Quantum Chemical Investigation on Adsorption of Nifedipine as Corrosion Inhibitor at API 5L X-52 Steel / HCl Acid InterfaceMagdalene Edet IkpiFidelis Ebunta AbengNifedipine, a pyridine derivative was investigated as corrosion inhibitor for API 5L X-52 steel in 2 M HCl solution by potentiodynamic polarization, electrochemical impedance spectroscopy and quantum chemical calculations. Statistical tools were used to compare results of the experimental methods. The results showed that nifedipine is capable of inhibiting the corrosion of API 5L X-52 steel in 2 M HCl solution. Potentiodynamic polarization results reveal that nifedipine functions as a mixed-type inhibitor and presents an inhibition efficiency of about 78% at 500 ppm. Impedance data reveal an increasing charge transfer resistance with increasing inhibitor concentration and also shows comparable inhibition efficiency of about 89-94% at 500 ppm. Thermodynamic parameters imply that nifedipine is adsorbed on the steel surface by a physiochemical process and obeys Langmuir adsorption isotherm. The calculated molecular properties namely the highest occupied molecular orbital energy, lowest unoccupied molecular orbital energy, chemical hardness, energy gap, dipole moment, electronegativity and global nucleophilicity index all show a positive relationship to the observed corrosion inhibition efficiency.https://journals.pan.pl/Content/114512/PDF/AMM-2020-1-15-Ikpi.pdfnifedipinecorrosion inhibitionelectrochemical impedancecarbon steelquantum chemical study |
| spellingShingle | Magdalene Edet Ikpi Fidelis Ebunta Abeng Electrochemical and Quantum Chemical Investigation on Adsorption of Nifedipine as Corrosion Inhibitor at API 5L X-52 Steel / HCl Acid Interface Archives of Metallurgy and Materials nifedipine corrosion inhibition electrochemical impedance carbon steel quantum chemical study |
| title | Electrochemical and Quantum Chemical Investigation on Adsorption of Nifedipine as Corrosion Inhibitor at API 5L X-52 Steel / HCl Acid Interface |
| title_full | Electrochemical and Quantum Chemical Investigation on Adsorption of Nifedipine as Corrosion Inhibitor at API 5L X-52 Steel / HCl Acid Interface |
| title_fullStr | Electrochemical and Quantum Chemical Investigation on Adsorption of Nifedipine as Corrosion Inhibitor at API 5L X-52 Steel / HCl Acid Interface |
| title_full_unstemmed | Electrochemical and Quantum Chemical Investigation on Adsorption of Nifedipine as Corrosion Inhibitor at API 5L X-52 Steel / HCl Acid Interface |
| title_short | Electrochemical and Quantum Chemical Investigation on Adsorption of Nifedipine as Corrosion Inhibitor at API 5L X-52 Steel / HCl Acid Interface |
| title_sort | electrochemical and quantum chemical investigation on adsorption of nifedipine as corrosion inhibitor at api 5l x 52 steel hcl acid interface |
| topic | nifedipine corrosion inhibition electrochemical impedance carbon steel quantum chemical study |
| url | https://journals.pan.pl/Content/114512/PDF/AMM-2020-1-15-Ikpi.pdf |
| work_keys_str_mv | AT magdaleneedetikpi electrochemicalandquantumchemicalinvestigationonadsorptionofnifedipineascorrosioninhibitoratapi5lx52steelhclacidinterface AT fidelisebuntaabeng electrochemicalandquantumchemicalinvestigationonadsorptionofnifedipineascorrosioninhibitoratapi5lx52steelhclacidinterface |