Adsorption inhibitive properties of Rosmarinus officinalis L. on aluminium AA8011 alloy in 1.0M HCl
The adsorption mechanism of Rosmarinus officinalis L. as corrosion inhibitor for Al AA8801 alloy in 1.0M HCl was studied using gravimetric method and thermodynamics studies at 303, 313, 323 and 333K. Inhibitor concentrations ranged between 0 and 1000mg/L. Results show that the adsorption mechanism o...
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Engineering Society for Corrosion, Belgrade
2023-06-01
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| Series: | Zaštita Materijala |
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| Online Access: | https://www.zastita-materijala.org/index.php/home/article/view/103 |
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| author | Paul A. Andoor Kelechukwu B. Okeoma Uchenna S. Mbamara |
| author_facet | Paul A. Andoor Kelechukwu B. Okeoma Uchenna S. Mbamara |
| author_sort | Paul A. Andoor |
| collection | DOAJ |
| description | The adsorption mechanism of Rosmarinus officinalis L. as corrosion inhibitor for Al AA8801 alloy in 1.0M HCl was studied using gravimetric method and thermodynamics studies at 303, 313, 323 and 333K. Inhibitor concentrations ranged between 0 and 1000mg/L. Results show that the adsorption mechanism of Rosmarinus officinalis L. is via physisorption, generally endothermic and accompanied by a resulting decrease in disorder. Inhibitor efficiency largely decreased with increase in temperature, and decrease in concentration of the extract. The presence of an external magnetic field enhanced the dissolution of passivating Al2O3 films, thereby increasing corrosion rate. |
| format | Article |
| id | doaj-art-771e691bc1af48b69fc9ececb9c163e9 |
| institution | DOAJ |
| issn | 0351-9465 2466-2585 |
| language | English |
| publishDate | 2023-06-01 |
| publisher | Engineering Society for Corrosion, Belgrade |
| record_format | Article |
| series | Zaštita Materijala |
| spelling | doaj-art-771e691bc1af48b69fc9ececb9c163e92025-08-20T03:19:11ZengEngineering Society for Corrosion, BelgradeZaštita Materijala0351-94652466-25852023-06-0164220421210.5937/zasmat2302204A102Adsorption inhibitive properties of Rosmarinus officinalis L. on aluminium AA8011 alloy in 1.0M HClPaul A. Andoor0Kelechukwu B. Okeoma1Uchenna S. Mbamara2Federal University of Technology, Department of Physics, Owerri, NigeriaFederal University of Technology, Department of Physics, Owerri, NigeriaFederal University of Technology, Department of Physics, Owerri, NigeriaThe adsorption mechanism of Rosmarinus officinalis L. as corrosion inhibitor for Al AA8801 alloy in 1.0M HCl was studied using gravimetric method and thermodynamics studies at 303, 313, 323 and 333K. Inhibitor concentrations ranged between 0 and 1000mg/L. Results show that the adsorption mechanism of Rosmarinus officinalis L. is via physisorption, generally endothermic and accompanied by a resulting decrease in disorder. Inhibitor efficiency largely decreased with increase in temperature, and decrease in concentration of the extract. The presence of an external magnetic field enhanced the dissolution of passivating Al2O3 films, thereby increasing corrosion rate.https://www.zastita-materijala.org/index.php/home/article/view/103aluminumweight lossacid corrosionlangmuirmagnetic field |
| spellingShingle | Paul A. Andoor Kelechukwu B. Okeoma Uchenna S. Mbamara Adsorption inhibitive properties of Rosmarinus officinalis L. on aluminium AA8011 alloy in 1.0M HCl Zaštita Materijala aluminum weight loss acid corrosion langmuir magnetic field |
| title | Adsorption inhibitive properties of Rosmarinus officinalis L. on aluminium AA8011 alloy in 1.0M HCl |
| title_full | Adsorption inhibitive properties of Rosmarinus officinalis L. on aluminium AA8011 alloy in 1.0M HCl |
| title_fullStr | Adsorption inhibitive properties of Rosmarinus officinalis L. on aluminium AA8011 alloy in 1.0M HCl |
| title_full_unstemmed | Adsorption inhibitive properties of Rosmarinus officinalis L. on aluminium AA8011 alloy in 1.0M HCl |
| title_short | Adsorption inhibitive properties of Rosmarinus officinalis L. on aluminium AA8011 alloy in 1.0M HCl |
| title_sort | adsorption inhibitive properties of rosmarinus officinalis l on aluminium aa8011 alloy in 1 0m hcl |
| topic | aluminum weight loss acid corrosion langmuir magnetic field |
| url | https://www.zastita-materijala.org/index.php/home/article/view/103 |
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