Investigation and evaluation of the efficiency of palm kernel oil extract for corrosion inhibition of brass artifacts
Abstract Brass (Cu–Zn alloy) used in the crescent of the Al-Maradani Mosque pulpit is subjected to corrosion under certain conditions, such as exposure to polluted air, oxidizing acids, and compounds containing sulphur or ammonia. This study aimed to evaluate the effectiveness of palm kernel oil ext...
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Nature Portfolio
2025-02-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-88370-0 |
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| author | Mohamed M. Megahed Eman AbdElRhiem Wesam Atta Nabil Abdel Ghany Mohamed Abdelbar |
| author_facet | Mohamed M. Megahed Eman AbdElRhiem Wesam Atta Nabil Abdel Ghany Mohamed Abdelbar |
| author_sort | Mohamed M. Megahed |
| collection | DOAJ |
| description | Abstract Brass (Cu–Zn alloy) used in the crescent of the Al-Maradani Mosque pulpit is subjected to corrosion under certain conditions, such as exposure to polluted air, oxidizing acids, and compounds containing sulphur or ammonia. This study aimed to evaluate the effectiveness of palm kernel oil extract (PKO) as a green corrosion inhibitor for protecting brass artifacts. The crescent was analyzed using metallographic microscopy, scanning electron microscopy (SEM) with energy-dispersive X-ray (EDX), and X-ray diffraction (XRD) to identify its alloy composition, microstructure and corrosion products. The analyses confirmed the crescent was made of a brass alloy (Cu–Zn) and formed by hammering, with corrosion layers composed primarily of cuprite and clinoatacamite, covered by dust containing calcite and quartz. The corrosion protection efficiency of the PKO was evaluated using brass coupons, simulating the artifact of the alloy. Electrochemical methods, including the open circuit potential (OCP), Tafel, and electrochemical impedance spectroscopy (EIS), were used to assess the performance of palm kernel oil on brass coupons at different concentrations (1, 3, 5, 7%). Electrochemical tests showed that corrosion inhibition efficiency increased with higher palm kernel oil concentrations, with the 7% concentration exhibiting the highest corrosion protection, up to 99.7%. |
| format | Article |
| id | doaj-art-5c5135a445b140c79554d33417caaedf |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-5c5135a445b140c79554d33417caaedf2025-02-09T12:35:12ZengNature PortfolioScientific Reports2045-23222025-02-0115111410.1038/s41598-025-88370-0Investigation and evaluation of the efficiency of palm kernel oil extract for corrosion inhibition of brass artifactsMohamed M. Megahed0Eman AbdElRhiem1Wesam Atta2Nabil Abdel Ghany3Mohamed Abdelbar4Conservation Department, Faculty of Archaeology, Fayoum UniversityMining and Metallurgy Engineering Department, Tabbin Institute for Metallurgical Studies (TIMS)Conservation Department, Faculty of Archaeology, Fayoum UniversityPhysical Chemistry Department, National Research CentreConservation Department, Faculty of Archaeology, Damietta UniversityAbstract Brass (Cu–Zn alloy) used in the crescent of the Al-Maradani Mosque pulpit is subjected to corrosion under certain conditions, such as exposure to polluted air, oxidizing acids, and compounds containing sulphur or ammonia. This study aimed to evaluate the effectiveness of palm kernel oil extract (PKO) as a green corrosion inhibitor for protecting brass artifacts. The crescent was analyzed using metallographic microscopy, scanning electron microscopy (SEM) with energy-dispersive X-ray (EDX), and X-ray diffraction (XRD) to identify its alloy composition, microstructure and corrosion products. The analyses confirmed the crescent was made of a brass alloy (Cu–Zn) and formed by hammering, with corrosion layers composed primarily of cuprite and clinoatacamite, covered by dust containing calcite and quartz. The corrosion protection efficiency of the PKO was evaluated using brass coupons, simulating the artifact of the alloy. Electrochemical methods, including the open circuit potential (OCP), Tafel, and electrochemical impedance spectroscopy (EIS), were used to assess the performance of palm kernel oil on brass coupons at different concentrations (1, 3, 5, 7%). Electrochemical tests showed that corrosion inhibition efficiency increased with higher palm kernel oil concentrations, with the 7% concentration exhibiting the highest corrosion protection, up to 99.7%.https://doi.org/10.1038/s41598-025-88370-0Brass alloyCorrosionPalm kernel oilElectrochemical measurements |
| spellingShingle | Mohamed M. Megahed Eman AbdElRhiem Wesam Atta Nabil Abdel Ghany Mohamed Abdelbar Investigation and evaluation of the efficiency of palm kernel oil extract for corrosion inhibition of brass artifacts Scientific Reports Brass alloy Corrosion Palm kernel oil Electrochemical measurements |
| title | Investigation and evaluation of the efficiency of palm kernel oil extract for corrosion inhibition of brass artifacts |
| title_full | Investigation and evaluation of the efficiency of palm kernel oil extract for corrosion inhibition of brass artifacts |
| title_fullStr | Investigation and evaluation of the efficiency of palm kernel oil extract for corrosion inhibition of brass artifacts |
| title_full_unstemmed | Investigation and evaluation of the efficiency of palm kernel oil extract for corrosion inhibition of brass artifacts |
| title_short | Investigation and evaluation of the efficiency of palm kernel oil extract for corrosion inhibition of brass artifacts |
| title_sort | investigation and evaluation of the efficiency of palm kernel oil extract for corrosion inhibition of brass artifacts |
| topic | Brass alloy Corrosion Palm kernel oil Electrochemical measurements |
| url | https://doi.org/10.1038/s41598-025-88370-0 |
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