Статья

Electrochemical, surface and computational studies on the inhibition performance of some newly synthesized 8-hydroxyquinoline derivatives containing benzimidazole moiety against the corrosion of carbon steel in phosphoric acid environment

M. El FaydyLaboratory of Agricultural Resources, Polymer and Process Engineering, Ibn Tofail University, Department of Chemistry, B.P. 133, Kenitra, MoroccoB. LakhrissiLaboratory of Agricultural Resources, Polymer and Process Engineering, Ibn Tofail University, Department of Chemistry, B.P. 133, Kenitra, MoroccoCharafeddine JamaUniversity Lille, CNRS, INRA, ENSCL, UMR 8207 -UMET -Unit Matriaux et Transformations, F-59000 Lille, FranceA. ZarroukLaboratory of Materials, Nanotechnology and Environment, Faculty of Sciences, Mohammed V University, Av. Ibn Battouta, PO Box 1014, Agdal-Rabat, MoroccoLukman O. OlasunkanmiDepartment of Chemistry, School of Chemical and Physical Sciences, Faculty of Natural and Agricultural Sciences, North-West University, Private Bag X2046, Mmabatho 2735, South AfricaEno E. EbensoDepartment of Chemistry, School of Chemical and Physical Sciences, Faculty of Natural and Agricultural Sciences, North-West University, Private Bag X2046, Mmabatho 2735, South AfricaFouad BentissLaboratory of Catalysis and Corrosion of Materials, Faculty of Sciences, Chouaib Doukkali University, PO Box 20, M-24000 El Jadida, Morocco

2019en

ABI

Аннотация

The influence of temperature on the corrosion behaviour was assessed. The four quinoline derivatives adsorbed according to the Langmuir's adsorption isotherm. Surface analysis (SEM and XPS) confirmed the formation of a protective layer adsorbed on the steel surface. DFT calculations suggested that 8-hydroxyquinoline derivatives adsorb on the metal via the 8-hydroxyquinoline ring and their corrosion inhibition potential have some linear correlation with the degree of co-planarity of the benzimidazole and hydroxyquinoline rings. Monte Carlo simulations showed that the molecules adsorbed on Fe(1 1 0) surface through the 8-hydroxyquinoline in a near-flat mode and the adsorption energies both in the absence and presence of aqueous phosphate ions agree with the observed trends of inhibition efficiencies.

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Идентификаторы

DOI: 10.1016/j.jmrt.2019.11.014

Цитирования и источники

Цитирований: 3Использованных источников: 0

Показатели — AkademScholar