Carob fruit extract as naturally products corrosion inhibitor for copper-nickel alloys in brine solutions
Abstract Copper-nickel alloys are the preferred material for desalination facilities and condensers and heat exchangers that use saltwater as a coolant. The eco-friendly compounds especially Carob fruit extract (CFE) has emerged as excessive green corrosion inhibitor for alloys. Cu-Ni alloys are wid...
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Nature Portfolio
2024-11-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-024-80589-7 |
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| author | Abd El Aziz S. Fouda Mona Nageeb Ghalia A. Gaber Amal S. Ahmed Ahmed A. El-Hossiany Mohamed F. Atia |
| author_facet | Abd El Aziz S. Fouda Mona Nageeb Ghalia A. Gaber Amal S. Ahmed Ahmed A. El-Hossiany Mohamed F. Atia |
| author_sort | Abd El Aziz S. Fouda |
| collection | DOAJ |
| description | Abstract Copper-nickel alloys are the preferred material for desalination facilities and condensers and heat exchangers that use saltwater as a coolant. The eco-friendly compounds especially Carob fruit extract (CFE) has emerged as excessive green corrosion inhibitor for alloys. Cu-Ni alloys are widely used in various industries due to their excellent corrosion resistance. However, their performance can be compromised in aggressive environments like seawater (which is approximately 3.5% NaCl). To evaluate the corrosion behavior of these alloys and the effectiveness of corrosion inhibitors, researchers often employ weight loss, potentiodynamic polarization, and impedance spectroscopy techniques. The results showed that CFE exhibited a good ability to decrease the CR of alloys in 3.5% NaCl solution. The inhibition efficacy (IE) was reached to 92.6% and ̴ 83.2% at 300 ppm dose of CFE for Cu-10Ni alloy and Cu-30Ni alloy, respectively. The CR increases with temperature rising, but the addition of CFE reduces the CR, and the reduction depends on the dose of the extract. Adsorption of the extract gives a good fit to Langmuir, Temkin, and Freundlich isotherms model. The free adsorption energies of CFE on Cu-10Ni and Cu-30Ni alloys were 17.61 and 15.86 kJ mol−1, respectively, suggesting that CFE was weakly held to both alloys. The presence of a protective film on the alloys surface is confirmed by using scanning electron microscopy (SEM), energy dispersive X-ray (EDX) spectroscopy and atomic force microscope (AFM). The study suggests that utilizing affordable, natural substances as green corrosion inhibitors presents a new strategy for promoting both resource efficiency and environmental sustainability. |
| format | Article |
| id | doaj-art-60a2f70c24e34093a9420ea38be8cb74 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-60a2f70c24e34093a9420ea38be8cb742024-12-01T12:22:55ZengNature PortfolioScientific Reports2045-23222024-11-0114111510.1038/s41598-024-80589-7Carob fruit extract as naturally products corrosion inhibitor for copper-nickel alloys in brine solutionsAbd El Aziz S. Fouda0Mona Nageeb1Ghalia A. Gaber2Amal S. Ahmed3Ahmed A. El-Hossiany4Mohamed F. Atia5Chemistry Department, Faculty of Science, Mansoura UniversityDepartment of Chemistry, Faculty of Science (Girls), Al-Azhar UniversityDepartment of Chemistry, Faculty of Science (Girls), Al-Azhar UniversityDepartment of Chemistry, Faculty of Science (Girls), Al-Azhar UniversityChemistry Department, Faculty of Science, Mansoura UniversityInstitute of Aviation Engineering and TechnologyAbstract Copper-nickel alloys are the preferred material for desalination facilities and condensers and heat exchangers that use saltwater as a coolant. The eco-friendly compounds especially Carob fruit extract (CFE) has emerged as excessive green corrosion inhibitor for alloys. Cu-Ni alloys are widely used in various industries due to their excellent corrosion resistance. However, their performance can be compromised in aggressive environments like seawater (which is approximately 3.5% NaCl). To evaluate the corrosion behavior of these alloys and the effectiveness of corrosion inhibitors, researchers often employ weight loss, potentiodynamic polarization, and impedance spectroscopy techniques. The results showed that CFE exhibited a good ability to decrease the CR of alloys in 3.5% NaCl solution. The inhibition efficacy (IE) was reached to 92.6% and ̴ 83.2% at 300 ppm dose of CFE for Cu-10Ni alloy and Cu-30Ni alloy, respectively. The CR increases with temperature rising, but the addition of CFE reduces the CR, and the reduction depends on the dose of the extract. Adsorption of the extract gives a good fit to Langmuir, Temkin, and Freundlich isotherms model. The free adsorption energies of CFE on Cu-10Ni and Cu-30Ni alloys were 17.61 and 15.86 kJ mol−1, respectively, suggesting that CFE was weakly held to both alloys. The presence of a protective film on the alloys surface is confirmed by using scanning electron microscopy (SEM), energy dispersive X-ray (EDX) spectroscopy and atomic force microscope (AFM). The study suggests that utilizing affordable, natural substances as green corrosion inhibitors presents a new strategy for promoting both resource efficiency and environmental sustainability.https://doi.org/10.1038/s41598-024-80589-7 |
| spellingShingle | Abd El Aziz S. Fouda Mona Nageeb Ghalia A. Gaber Amal S. Ahmed Ahmed A. El-Hossiany Mohamed F. Atia Carob fruit extract as naturally products corrosion inhibitor for copper-nickel alloys in brine solutions Scientific Reports |
| title | Carob fruit extract as naturally products corrosion inhibitor for copper-nickel alloys in brine solutions |
| title_full | Carob fruit extract as naturally products corrosion inhibitor for copper-nickel alloys in brine solutions |
| title_fullStr | Carob fruit extract as naturally products corrosion inhibitor for copper-nickel alloys in brine solutions |
| title_full_unstemmed | Carob fruit extract as naturally products corrosion inhibitor for copper-nickel alloys in brine solutions |
| title_short | Carob fruit extract as naturally products corrosion inhibitor for copper-nickel alloys in brine solutions |
| title_sort | carob fruit extract as naturally products corrosion inhibitor for copper nickel alloys in brine solutions |
| url | https://doi.org/10.1038/s41598-024-80589-7 |
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