Evaluating Eriobotrya Japonica Seeds as a Sustainable Corrosion Inhibitor for Carbon Steel in Diprotic Acid Medium: Insights from Electrochemical and Computational Analysis

Metal corrosion represents a major concern in various industries. While there is interest in developing new corrosion inhibitors, traditional ones often rely on toxic chemicals. As a result, there has been increasing attention on using natural substances, particularly botanical extracts, as safer al...

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Bibliographic Details
Published in:Journal of bio- and tribo-corrosion 2024-09, Vol.10 (3), Article 69
Main Authors: Kellal, Rachid, Ait El Caid, Zakaria, Thoume, Abderrahmane, Zertoubi, Mustapha, Benmessaoud Left, Driss
Format: Article
Language:English
Subjects:
Biomaterials
Chemistry and Materials Science
Corrosion and Coatings
Materials Science
Solid Mechanics
Tribology
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Summary:Metal corrosion represents a major concern in various industries. While there is interest in developing new corrosion inhibitors, traditional ones often rely on toxic chemicals. As a result, there has been increasing attention on using natural substances, particularly botanical extracts, as safer alternatives for corrosion prevention. This study aims to investigate the corrosion inhibitory properties of Eriobotrya Japonica seeds on low-carbon steel in an H 2 SO 4 medium using electrochemical techniques such as electrochemical impedance spectroscopy (EIS) and Potentiodynamic Polarization (PDP), as well as theoretical assessments through Density Functional Theory (DFT) and Molecular Dynamic Simulations (MDs). The results revealed that the Eriobotrya Japonica Seeds extract (EJSE) exhibits significant corrosion inhibition, with an efficiency of up to 90.7% at a 1 g/L dosage of the extract. The inhibition mechanism follows a mixed-type pattern and adheres to the Langmuir adsorption model. The effect of temperature reveals physisorption behavior at the interface between the carbon steel and EJSE. Surface characterizations using Scanning Electron Microscopy (SEM) micrographs of the low-carbon steel confirm the electrochemical findings and show the formation of a protective barrier that separates the steel's active surface from the corrosive medium. Quantum calculations support the empirical findings, concluding that the Eriobotrya Japonica Seeds extract has significant potential for corrosion inhibition in acidic solutions. Graphical Abstract
ISSN:2198-4220
2198-4239
DOI:10.1007/s40735-024-00871-z