dc.description.abstract | The adsorption and corrosion inhibition properties of three triazepines carboxylate substituted compounds, namely, ethyl 4,9-bis(4-chlorophenyl)-8-cyano-3-hydroxy-2,7-dioxo-1,2,5,7-tetrahydropyrido[1,2-b]triazepine-10-carboxylate (2Cl–Et), methyl 4,9-bis(4-chlorophenyl)-8-cyano-3-hydroxy-2,7-dioxo-1,2,5,7-tetrahydropyrido[1,2-b]triazepine-10-carboxylate (2Cl–Me), and ethyl 9-(4-chlorophenyl)-8-cyano-3-hydroxy-2,7-dioxo-4-(p-tolyl)-1,2,5,7-tetrahydropyrido[1,2-b]triazepine-10-carboxylate (Cl–Me–Et) on mild steel corrosion in 1.0 M of hydrochloride acid were investigated by using weight loss, electrochemical, and theoretical investigations. It is found that these compounds act as excellent inhibitors and their inhibition efficiencies follow the order: 2Cl–Me > 2Cl–Et > Cl–Me–Et, and they depend on the type of the substituent. In addition, the possible relations between the experimental and theoretical parameters were discussed. It is found that the theoretical parameters confirmed those obtained by experimental studies. Surface roughness morphology for mild steel before and after hydrochloric acid attack is investigated and discussed using 3D-profilometry images. The scanning electron microscope (SEM) images of the corrosion product confirmed the protection offered by triazepines carboxylate derivatives on the surface of the metal immersed in both media. © 2018, Springer International Publishing AG, part of Springer Nature. | en_US |
dc.contributor.department | Alaoui, K., Laboratory of Materials Engineering and Environment: Modeling and Application, Faculty of Science, Ibn Tofail University, Kenitra, 133-14000, Morocco -- Touir, R., Laboratory of Materials Engineering and Environment: Modeling and Application, Faculty of Science, Ibn Tofail University, Kenitra, 133-14000, Morocco, Centre Régional des métiers de l’éducation et de la formation (CRMEF), Avenue Allal Al Fassi, Madinat Al Irfane, Rabat, 6210, Morocco -- Galai, M., Laboratory of Materials Engineering and Environment: Modeling and Application, Faculty of Science, Ibn Tofail University, Kenitra, 133-14000, Morocco -- Serrar, H., Laboratory of Organic, Organometallic and Theoretical Chemistry, Faculty of Science, Ibn Tofaïl University, Kenitra, Morocco -- Ouakki, M., Laboratory of Materials Engineering and Environment: Modeling and Application, Faculty of Science, Ibn Tofail University, Kenitra, 133-14000, Morocco -- Kaya, S., Department of Chemistry, Faculty of Science, Cumhuriyet University, Sivas, 58140, Turkey -- Tüzün, B., Department of Chemistry, Faculty of Science, Cumhuriyet University, Sivas, 58140, Turkey -- Boukhris, S., Laboratory of Organic, Organometallic and Theoretical Chemistry, Faculty of Science, Ibn Tofaïl University, Kenitra, Morocco -- Ebn Touhami, M., Laboratory of Materials Engineering and Environment: Modeling and Application, Faculty of Science, Ibn Tofail University, Kenitra, 133-14000, Morocco -- El Kacimi, Y., Laboratory of Materials Engineering and Environment: Modeling and Application, Faculty of Science, Ibn Tofail University, Kenitra, 133-14000, Morocco | en_US |