Corrosion inhibition of Carbon Steel using a new morpholine-based ligand during acid pickling: Experimental and theoretical studies

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dc.contributor.authorRezaeivala, Majid
dc.contributor.authorBozorg, Mansoor
dc.contributor.authorRafiee, Negar
dc.contributor.authorSayin, Koray
dc.contributor.authorTuzun, Burak
dc.date.accessioned2025-05-04T16:42:05Z
dc.date.available2025-05-04T16:42:05Z
dc.date.issued2023
dc.departmentSivas Cumhuriyet Üniversitesi
dc.description.abstractHere, a novel, relatively inexpensive Schiff base ligand (HL) has been studied as a corrosion inhibitor for the protection of steel in acidic solution. Different concentrations (0–25 ppm) of HL were added to the test solution and corrosion rate of steel and inhibition efficiency were determined. The obtained results indicated that HL is an efficient steel inhibitor in HCl solution and exhibits the maximum inhibition efficiency of 87.3 % at low concentration of 25 ppm. The EIS measurements revealed that polarization resistance increased from 319 Ωcm2 to 2893 Ωcm2, when the HL concentrations increased from 0 ppm to 25 ppm in HCl solution. Electrochemical experiments revealed that HL acted as a mixed type inhibitor, slowing both cathodic and anodic processes through adsorption which obeyed the Langmuir isotherm. The increase in inhibition efficiency up to 94.6 % with increase in immersion time up to 24 h was observed. Corrosion morphologies were observed by SEM to verify qualitatively the results obtained by electrochemical measurements. Quantum chemical calculations showed the preferred sites through which the molecules can interact with steel surface. © 2022 Elsevier B.V.
dc.description.sponsorshipIran National Science Foundation, INSF, (400 5292)
dc.description.sponsorshipHamedan University of Technology, HUT
dc.description.sponsorshipShahrood University of Technology, SUT
dc.identifier.doi10.1016/j.inoche.2022.110323
dc.identifier.issn1387-7003
dc.identifier.scopus2-s2.0-85144836072
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1016/j.inoche.2022.110323
dc.identifier.urihttps://hdl.handle.net/20.500.12418/35060
dc.identifier.volume148
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier B.V.
dc.relation.ispartofInorganic Chemistry Communications
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_Scopus_20250504
dc.subjectCorrosion Inhibitor
dc.subjectDFT
dc.subjectElectrochemical Impedance Spectroscopy
dc.subjectMild steel
dc.subjectPolarization
dc.subjectSchiff base
dc.subjectTheoretical calculation
dc.titleCorrosion inhibition of Carbon Steel using a new morpholine-based ligand during acid pickling: Experimental and theoretical studies
dc.typeArticle

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