Статья

Adsorption Properties and Inhibition of Carbon Steel Corrosion in a Hydrochloric Solution by 2-(4,5-diphenyl-4,5-dihydro-1h-imidazol-2-yl)-5-methoxyphenol

Mohamed RbaaLaboratory of Agricultural Resource Polymers and Engineering, Faculty of Science, Ibn Tofail University, P.O. Box 133-14000, Kenitra, MoroccoM. GalaiLaboratory of Materials Engineering and Environment: Modeling and Application, Faculty of Science, Ibn Tofail University, P.O. Box 133-14000, Kenitra, MoroccoY. El KacimiLaboratory of Materials Engineering and Environment: Modeling and Application, Faculty of Science, Ibn Tofail University, P.O. Box 133-14000, Kenitra, MoroccoMoussa OuakkiLaboratory of Materials, Electrochemistry and Environment, Faculty of Science, Ibn Tofail University, Kenitra, MoroccoR. TouirLaboratory of Agricultural Resource Polymers and Engineering, Faculty of Science, Ibn Tofail University, P.O. Box 133-14000, Kenitra, MoroccoB. LakhrissiLaboratory of Agricultural Resource Polymers and Engineering, Faculty of Science, Ibn Tofail University, P.O. Box 133-14000, Kenitra, MoroccoM. Ebn TouhamıLaboratory of Materials Engineering and Environment: Modeling and Application, Faculty of Science, Ibn Tofail University, P.O. Box 133-14000, Kenitra, Morocco

2017en

ABI

Аннотация

The corrosion inhibition of mild steel in a 1.0 M hydrochloric acid solution by 2-(4,5diphenyl-4,5-dihydro-1h-imidazol-2-yl)-5-methoxyphenol (P1) has been studied in relation to the concentration of the inhibitor, as well as to the temperature, using chemical (weight loss) and electrochemical techniques. All the employed methods were in reasonable agreement. The protection efficiency increased with an increased inhibitor's concentration. The obtained thermodynamic adsorption parameters (G * ads, H * ads, S * ads) indicated that this polymer retarded both cathodic and anodic processes through physical adsorption, and blocked the active corrosion sites. It was also found that this compound obeyed the Langmuir's adsorption isotherm.

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Идентификаторы

DOI: 10.4152/pea.201706323

Цитирования и источники

Цитирований: 2Использованных источников: 0

Показатели — AkademScholar