Effect of hyamine on electrochemical behaviour of brass alloy in HNO3 solution

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dc.contributor.authorOzkir, Demet
dc.contributor.authorBayol, Emel
dc.contributor.authorGurten, A. Ali
dc.contributor.authorSurme, Yavuz
dc.contributor.authorKandemirli, Fatma
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2013
dc.departmentNiğde ÖHÜ
dc.description.abstractThe electrochemical behaviours of a brass alloy in 0.1 M nitric acid, including the hyamine inhibitor with concentrations between 2.5 x 10(-4) M and 1.0 x 10(-5) M, were studied. For this purpose, potentiodynamic polarisation, electrochemical impedance spectroscopy (EIS), linear polarisation resistance (LPR) techniques, and flame atomic absorption spectroscopy (FAAS) were utilised. The inhibitor molecules adsorbed on the brass surface were calculated to be in good agreement with the Langmuir adsorption isotherm and the standard free enthalpy of adsorption (Delta G (ads) (a similar to) ). Hyamine effectively improved the corrosion inhibition of brass and acted as a mixed-type inhibitor on alloy surfaces. The surface morphology of the alloy was also clarified by optical microscopic and SEM techniques. A theoretical study of the corrosion inhibition efficiency of hyamine molecule was carried out using density functional theory (DFT) at the B3LYP/6-311G(d,p) basis set level. (C) 2012 Institute of Chemistry, Slovak Academy of Sciences
dc.identifier.doi10.2478/s11696-012-0255-y
dc.identifier.endpage212
dc.identifier.issn2585-7290
dc.identifier.issn1336-9075
dc.identifier.issue2
dc.identifier.scopus2-s2.0-84874494402
dc.identifier.scopusqualityQ2
dc.identifier.startpage202
dc.identifier.urihttps://dx.doi.org/10.2478/s11696-012-0255-y
dc.identifier.urihttps://hdl.handle.net/11480/4435
dc.identifier.volume67
dc.identifier.wosWOS:000312060300009
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherSPRINGER INTERNATIONAL PUBLISHING AG
dc.relation.ispartofCHEMICAL PAPERS
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectelectrochemical techniques
dc.subjectcomputational techniques
dc.subjectdezincification
dc.subjectacid corrosion inhibitor
dc.subjectbrass
dc.titleEffect of hyamine on electrochemical behaviour of brass alloy in HNO3 solution
dc.typeArticle

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