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Analytical and Bioanalytical Electrochemistry، جلد ۱۳، شماره ۳، صفحات ۳۴۰-۳۵۷
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عنوان انگلیسی Gravimetric, Electrochemical, and Surface Morphological Studies of Ammodaucus Lecotrichus Essential Oil as Corrosion Inhibitor for Copper Surface in Hydrochloric Acid Medium
چکیده انگلیسی مقاله The aim of this work is the study of the inhibition corrosion of copper in hydrochloric acid solution 2M using essential oil of ammodaucus leucotrichus Coss. & Dur. noted (AEO). Its protective ability is evaluated by weight loss measurements, electrochemical impedance spectroscopy (EIS) and polarization curves, at different concentrations of the oil (0-3000 ppm) and by varying the temperature of the solution (298-328K). The polarization curves highlight the cathodic character of this eco-friendly inhibitor. However, the corrosion rate was reduced when the concentration of AEO is increased and achieves about 70% after 6h immersion in corrosive media containing 3000 ppm of AEO. This important protection ability is relied to the formation of a protective film over the metal, which its adsorption is governed by the Langmuir isotherm model. The negative values of the free standard adsorption energy ΔGads confirm the spontaneity of the reaction. Interestingly, scanning electron microscopy (SEM) analysis underlines a remarkable enhancement on the surface of copper exposed to the corrosive media, in presence of AEO and hence, its efficiency as an ecofriendly inhibitor for copper surface.
کلیدواژه‌های انگلیسی مقاله Ammodaucus leucotrichus essential oil,Corrosion inhibitor,copper,Weight loss,EIS
نویسندگان مقاله Belarbi Nadia |
Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques. BP 384, zone industrielle 42004 Tipaza, Algérie. Laboratoire de Spectrochimie et pharmacologie Structurale, Département de

Dergal Fayçal |
Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques. BP 384, zone industrielle 42004 Tipaza, Algérie.

El Haci Imad |
Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques. BP 384, zone industrielle 42004 Tipaza, Algérie.

Attar Tarik |
Higher School of Applied Sciences of Tlemcen, BP 165, 13000 Bel Horizon, Tlemcen, Algeria

Lerari Djahida |
Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques. BP 384, zone industrielle 42004 Tipaza, Algérie.

Dahmani Benamar |
Laboratoire de Spectrochimie et pharmacologie Structurale, Département de chimie, Faculté des sciences, Université Abou-Bekr Belkaïd, BP 119 Imama, 13000 Tlemcen, Algérie

Ait Ramdane Chafia |
Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques. BP 384, zone industrielle 42004 Tipaza, Algérie.

Bachari Khaldoun |
Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques. BP 384, zone industrielle 42004 Tipaza, Algérie.

نشانی اینترنتی https://www.abechem.com/article_248520_078096c1660c70c91c024d5275bfabb5.pdf
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