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Analytical and Bioanalytical Electrochemistry، جلد ۱۶، شماره ۲، صفحات ۱۴۲-۱۶۲
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عنوان انگلیسی Analysis of Fig Leaf Extract as Steel Eco-friendly Corrosion Inhibitor in Acidic Medium: Electrochemical, Gravimetric, Spectroscopic, and Surface Studies
چکیده انگلیسی مقاله The trend upwards using green, safe, and environmentally friendly corrosion inhibitors has led to many studies being conducted on plant extracts and presenting them as an ideal alternative candidate. Here, Fig leaf extract (FLE) was prepared quickly at a low temperature (313K) to preserve the main chemical composition and distilled water as the solvent of extraction. This green inhibitor was employed to prevent steel corrosion in hydrochloric acid 1 M. The inhibitory efficacy, adsorption, and action mechanism of this prepared inhibitor were assessed using potentiodynamic polarization, electrochemical impedance spectroscopy, and gravimetric measurements. Thermodynamic analysis and adsorption isotherms have been, also, applied to elucidate the adsorption mechanism. The obtained results have shown that FLE is of a mixed type, follows the Langmuir isotherm and his inhibitory efficiency reached a maximum of 94%. The formation of an inhibitor film chemically adsorbed was confirmed by the analysis of corrosion process activation parameters, and also by a rise in inhibition efficiency as temperature was increased. These findings were validated by FTIR and FTIR second derivative spectra. Steel surface morphology was investigated using SEM techniques and XRD analysis. A satisfactory corrosion inhibitory effect on acid steel was brought by fig leaf extract, which is in line with the desire for the use of environmentally friendly, non-toxic products.
کلیدواژه‌های انگلیسی مقاله Green corrosion inhibition, Fig leaf extract, electrochemical impedance spectroscopy, Weight loss, FTIR derivative spectra
نویسندگان مقاله Halima Rahmouni |
Laboratory of Applied Chemistry (LCA), Université 8 Mai 1945 Guelma, B.P. 401, Guelma, Algeria

Soraya Nigri |
Laboratoire d'Analyses Industrielles et Génie des Matériaux, Université 8 Mai 1945 Guelma, B.P. 401, Guelma, Algeria

Mouna Nacef |
Laboratoire d'Analyses Industrielles et Génie des Matériaux, Université 8 Mai 1945 Guelma, B.P. 401, Guelma, Algeria

Rabah Oumeddour |
Laboratoire d'Analyses Industrielles et Génie des Matériaux, Université 8 Mai 1945 Guelma, B.P. 401, Guelma, Algeria

Abed Mohamed Affoune |
Laboratoire d'Analyses Industrielles et Génie des Matériaux, Université 8 Mai 1945 Guelma, B.P. 401, Guelma, Algeria

نشانی اینترنتی https://www.abechem.com/article_711550_a2b48e82c796abd37fef93a1a7526b9f.pdf
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