Evaluation of inhibitive and adsorption behavior of thiazole-4-carboxylates on mild steel corrosion in HCl

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dc.authoridLGAZ, Hassane/0000-0001-8506-5759
dc.authoridSERRAR, Houda/0000-0002-6952-9063
dc.authoridChung, Il-Moon/0000-0003-0163-7305
dc.authoridsaid, Boukhris/0000-0001-9541-4318
dc.authoridEl AOUFIR, yasmina/0009-0007-0834-6769
dc.contributor.authorEl aoufir, Y.
dc.contributor.authorZehra, S.
dc.contributor.authorLgaz, H.
dc.contributor.authorChaouiki, A.
dc.contributor.authorSerrar, H.
dc.contributor.authorKaya, S.
dc.contributor.authorSalghi, R.
dc.date.accessioned2024-10-26T18:11:23Z
dc.date.available2024-10-26T18:11:23Z
dc.date.issued2020
dc.departmentSivas Cumhuriyet Üniversitesi
dc.description.abstractThe present work describes the corrosion inhibiting properties of three synthesized thiazole-4-carboxylates namely, methyl (E)-5-(4-chlorophenyl)-2-(((E)-4-methylbenzylidene)hydrazono)-2,3-dihydrothiazole-4-carboxylate (T1), methyl (E)-5-(4-chlorophenyl)-2-(((E)-4-nitrobenzylidene)hydrazono)-2,3-dihydrothiazole-4-carboxylate (T2) and methyl (E)-2-(((E)-4-chlorobenzylidene)hydrazono)-5-(4-chlorophenyl)-2,3-dihydrothiazole-4-carboxylate (T3) towards corrosion of mild steel (MS) in 1.0 mol/L HCl. Various techniques like electrochemical measurements, SEM-EDX analysis, Density Functional Theory (DFT) and molecular dynamics (MD) simulations were employed to probe the effects of substituent groups on inhibition performances of investigated compounds. EIS studies indicated the adsorbed protective film's construction on the steel/electrolyte interface by tested molecules; its existence was affirmed by SEM-EDX analysis. Polarization studies revealed a mixed-type of corrosion inhibition activity. Their mode of adsorption was studied by using isotherm models, and the best match was found just in case of Langmuir adsorption isotherm. Electrochemical results showed that the polarization resistance was greatly increased, from an initial value for the MS (in 1.0 mol/L HCl) of 20.24 up to 256.7 Omega cm(2) for the inhibited solution (1.0 mol/L HCl with 5 x 10(-4) mol/L of T3). Tested compounds behaved as effective inhibitors for MS corrosion in HCl at all concentrations with better efficacy at an optimal concentration of 5 x 10(-4) mol/L. Among all the tested inhibitors, T3 exhibited the most effective performance with an inhibition of 92 %, and the order of the inhibition potency is found within the order of T3 > T2 > T1 by all utilized techniques. The morphological examinations of the surface of MS specimens were explored by using SEM/EDX analysis. DFT calculations were not in agreement with experimental results while MD simulations confirmed the dependence of inhibition performances on the molecular structure of tested compounds.
dc.description.sponsorshipDeanship of Scientific Research at King Khalid University [R.G.P.1/199/41]; National Research Foundation of Korea [4220201013822] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
dc.description.sponsorshipThe authors extend their appreciation to the Deanship of Scientific Research at King Khalid University for funding this work through research groups program under grant number R.G.P.1/199/41.
dc.identifier.doi10.1016/j.colsurfa.2020.125351
dc.identifier.issn0927-7757
dc.identifier.issn1873-4359
dc.identifier.scopus2-s2.0-85089188702
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.colsurfa.2020.125351
dc.identifier.urihttps://hdl.handle.net/20.500.12418/30655
dc.identifier.volume606
dc.identifier.wosWOS:000580858600005
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofColloids and Surfaces A-Physicochemical and Engineering Aspects
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectCorrosion inhibition
dc.subjectThiazole-4-carboxylate
dc.subjectMild steel
dc.subjectSEM
dc.subjectDFT
dc.subjectMD simulations
dc.titleEvaluation of inhibitive and adsorption behavior of thiazole-4-carboxylates on mild steel corrosion in HCl
dc.typeArticle

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