Experimental and theoretical evaluations on Oleuropein as a natural origin corrosion inhibitor for copper in acidic environment
Abstract Copper corrosion in acidic cleaning solutions is a major worry for heat exchangers. Corrosion inhibitors derived from natural sources might be a viable option. The isolation of Oleuropein compound from olive leaf and investigation of its anticorrosion potential for copper in 1.0 M H2SO4 sol...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-05-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-11598-7 |
| _version_ | 1817988256794411008 |
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| author | M. A. Deyab Q. Mohsen E. Bloise M. R. Lazzoi G. Mele |
| author_facet | M. A. Deyab Q. Mohsen E. Bloise M. R. Lazzoi G. Mele |
| author_sort | M. A. Deyab |
| collection | DOAJ |
| description | Abstract Copper corrosion in acidic cleaning solutions is a major worry for heat exchangers. Corrosion inhibitors derived from natural sources might be a viable option. The isolation of Oleuropein compound from olive leaf and investigation of its anticorrosion potential for copper in 1.0 M H2SO4 solution are reported here. All experimental results from LC–MS, FT-IR, 1H and 13C-NMR characterizations support the molecular structure of Oleuropein. Electrochemical and gravimetric tests were used to evaluate the corrosion inhibition capabilities of Oleuropein. According to polarization investigation, Oleuropein is a mixed-type inhibitor. Oleuropein's inhibitory efficacy increases with concentration, attaining an optimum value (98.92%) at 100 mg L−1. At high temperatures, Oleuropein can be considered an efficient inhibitor. Thermodynamic variables for the activation operation and copper dissolution were computed and addressed as well. Scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) examinations revealed that Oleuropein produced an outer layer on the copper surface, shielding it from severe acid damage. Quantum chemical simulations were employed to propose molecular explanations for Oleuropein's inhibitory actions. |
| first_indexed | 2024-04-14T00:31:55Z |
| format | Article |
| id | doaj.art-53062b0cc3da4e3e929a2827fdf72ce7 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-14T00:31:55Z |
| publishDate | 2022-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-53062b0cc3da4e3e929a2827fdf72ce72022-12-22T02:22:31ZengNature PortfolioScientific Reports2045-23222022-05-0112111310.1038/s41598-022-11598-7Experimental and theoretical evaluations on Oleuropein as a natural origin corrosion inhibitor for copper in acidic environmentM. A. Deyab0Q. Mohsen1E. Bloise2M. R. Lazzoi3G. Mele4Egyptian Petroleum Research Institute (EPRI)Department of Chemistry, College of Sciences, Taif UniversityDepartment of Engineering for Innovation, University of SalentoDepartment of Engineering for Innovation, University of SalentoDepartment of Engineering for Innovation, University of SalentoAbstract Copper corrosion in acidic cleaning solutions is a major worry for heat exchangers. Corrosion inhibitors derived from natural sources might be a viable option. The isolation of Oleuropein compound from olive leaf and investigation of its anticorrosion potential for copper in 1.0 M H2SO4 solution are reported here. All experimental results from LC–MS, FT-IR, 1H and 13C-NMR characterizations support the molecular structure of Oleuropein. Electrochemical and gravimetric tests were used to evaluate the corrosion inhibition capabilities of Oleuropein. According to polarization investigation, Oleuropein is a mixed-type inhibitor. Oleuropein's inhibitory efficacy increases with concentration, attaining an optimum value (98.92%) at 100 mg L−1. At high temperatures, Oleuropein can be considered an efficient inhibitor. Thermodynamic variables for the activation operation and copper dissolution were computed and addressed as well. Scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) examinations revealed that Oleuropein produced an outer layer on the copper surface, shielding it from severe acid damage. Quantum chemical simulations were employed to propose molecular explanations for Oleuropein's inhibitory actions.https://doi.org/10.1038/s41598-022-11598-7 |
| spellingShingle | M. A. Deyab Q. Mohsen E. Bloise M. R. Lazzoi G. Mele Experimental and theoretical evaluations on Oleuropein as a natural origin corrosion inhibitor for copper in acidic environment Scientific Reports |
| title | Experimental and theoretical evaluations on Oleuropein as a natural origin corrosion inhibitor for copper in acidic environment |
| title_full | Experimental and theoretical evaluations on Oleuropein as a natural origin corrosion inhibitor for copper in acidic environment |
| title_fullStr | Experimental and theoretical evaluations on Oleuropein as a natural origin corrosion inhibitor for copper in acidic environment |
| title_full_unstemmed | Experimental and theoretical evaluations on Oleuropein as a natural origin corrosion inhibitor for copper in acidic environment |
| title_short | Experimental and theoretical evaluations on Oleuropein as a natural origin corrosion inhibitor for copper in acidic environment |
| title_sort | experimental and theoretical evaluations on oleuropein as a natural origin corrosion inhibitor for copper in acidic environment |
| url | https://doi.org/10.1038/s41598-022-11598-7 |
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