Synergistic inhibition of St37 steel corrosion in 15% H2SO4 solution by chitosan and iodide ion additives

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dc.contributor.authorSolomon, Moses M.
dc.contributor.authorGerengi, Hüsnü
dc.contributor.authorKaya, Tuğçe
dc.contributor.authorKaya, Ertuğrul
dc.contributor.authorUmoren, Saviour A.
dc.date.accessioned2020-04-30T23:32:24Z
dc.date.available2020-04-30T23:32:24Z
dc.date.issued2017
dc.departmentDÜ, Mühendislik Fakültesi, Makine Mühendisliği Bölümüen_US
dc.descriptionKAYA, ERTUGRUL/0000-0003-1579-6411; Solomon, Moses/0000-0002-3251-8846; Gerengi, Husnu/0000-0002-9663-4264;en_US
dc.descriptionWOS: 000394145500035en_US
dc.description.abstractThe inhibiting ability of chitosan alone and in combination with KI for St37 steel in 15% H2SO4 solution has been studied using potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS), dynamic electrochemical impedance spectroscopy(DEIS), and weight loss (WL) complemented by surface morphological examination with the aid of scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). The effect of immersion time on inhibition efficiency has been examined for 15 h and the influence of temperature studied over the temperature range of 25-60 A degrees C. Results obtained from all the applied methods portray chitosan as a moderate inhibitor for St37 steel in the studied acid environment. Addition of KI is found to remarkably enhance the inhibition efficiency of the polymer above 92%. DEIS results show that the adsorbed chitosan-KI film on the metal surface is more stable at longer immersion time and performs more effectively. The inhibition efficiency of chitosan decreases with increasing temperature, while that of the chitosan-iodide combination increases with a rise in temperature reaching an optimum value of 99.72% at 60 A degrees C. PDP results show that both chitosan and chitosan + KI behave as a mixed type inhibitor. A calculated synergism parameter confirms that the improved performance of chitosan is due to a synergistic effect. EDS results confirm the adsorption of inhibitor molecules on the metal surface.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) under the TUBITAK 2216-Postdoctoral Research Fellowship [TUBITAK 21514107-115.02-56312]; Duzce University, TurkeyDuzce Universityen_US
dc.description.sponsorshipMoses M. Solomon acknowledges the financial support by The Scientific and Technological Research Council of Turkey (TUBITAK) under the TUBITAK 2216-Postdoctoral Research Fellowship (TUBITAK 21514107-115.02-56312) and Duzce University, Turkey, for providing the facilities.en_US
dc.identifier.doi10.1007/s10570-016-1128-2en_US
dc.identifier.endpage950en_US
dc.identifier.issn0969-0239
dc.identifier.issn1572-882X
dc.identifier.issue2en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage931en_US
dc.identifier.urihttps://doi.org/10.1007/s10570-016-1128-2
dc.identifier.urihttps://hdl.handle.net/20.500.12684/4710
dc.identifier.volume24en_US
dc.identifier.wosWOS:000394145500035en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofCelluloseen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAcid solutionen_US
dc.subjectMetal corrosionen_US
dc.subjectInhibitionen_US
dc.subjectChitosanen_US
dc.subjectIodide ionsen_US
dc.subjectSynergismen_US
dc.titleSynergistic inhibition of St37 steel corrosion in 15% H2SO4 solution by chitosan and iodide ion additivesen_US
dc.typeArticleen_US

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