Yellow Oleander Extract as Green Sustainable Corrosion Inhibitor for Aluminum in Hydrochloric Acid Solution | ||||
| Egyptian Journal of Chemistry | ||||
| Volume 68, Issue 2, February 2025, Page 493-505 PDF (584.33 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejchem.2024.296213.9829 | ||||
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| Authors | ||||
A.S. Fouda   1; S.H. Etaiw2; E.S. El-Hussieny1
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| 1Department of Chemistry, Faculty of Science, Mansoura University, Mansoura-35516, Egypt | ||||
| 2Department of Chemistry, Faculty of Science, Tanta University, Tanta, Egypt | ||||
| Abstract | ||||
| Through this study, the use of yellow oleander extract (YOE) as an environmentally friendly and sustainable corrosion inhibitor for Al in 1 M HCl solution was investigated by “mass loss (ML)” method, electrochemical frequency modulation (EFM), electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PDP) techniques”. The surface analysis of Al has also been studied using scanning electron microscopy (SEM), energy dispersive X-ray spectroscopic (EDX) and atomic force microscopy (AFM) techniques. The obvious impact of temperature on corrosion, with and without YOE was explored inside the temperature assortments of 25oC till 45 ºC by using ML procedure. PDP data revealed that YOE is considered mixed type inhibitor. Inhibition efficiency (% IE) increases as YOE improves and decreases as temperature increases. The adsorption of YOE on the Al surface follows the Langmuir adsorption isotherm and is considered a physical adsorption. Results obtained using chemical and electrochemical strategies are in good agreement. | ||||
| Keywords | ||||
| Corrosion inhibition; Aluminum; Yellow Oleander; HCl; Langmuir isotherm | ||||
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