dc.creatorUmoren, Saviour Alphonsus
dc.creatorBanera, Mauro Jonathan
dc.creatorAlonso García, Teodoro
dc.creatorGervasi, Claudio Alfredo
dc.creatorMirífico, María Virginia
dc.date2013-10
dc.date2022-06-03T17:51:40Z
dc.date.accessioned2023-07-15T05:01:55Z
dc.date.available2023-07-15T05:01:55Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/137338
dc.identifierissn:0969-0239
dc.identifierissn:1572-882X
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7471823
dc.descriptionThe efficiency of chitosan (a naturally occurring polymer) as a corrosion inhibitor for mild steel in 0.1 M HCl was investigated by gravimetric, potentiodynamic polarization, electrochemical impedance spectroscopy measurements, scanning electron microscopy, and UV–visible analysis. The polymer was found to inhibit corrosion even at a very low concentration. Inhibition efficiency increases with a rise in temperature up to 96 % at 60 °C and then drops to 93 % at 70 °C, while it slightly increases with an increase in chitosan concentration. Polarization curves indicate that chitosan functions as a mixed inhibitor, affecting both cathodic and anodic partial reactions. Impedance results indicate that chitosan was adsorbed on the metal/solution interface. Adsorption of chitosan at the mild steel surface is found to be in agreement with Langmuir adsorption isotherm model. Chemical adsorption is the proposed mechanism for corrosion inhibition considering the trend of protection efficiency with temperature. Calculated kinetic and thermodynamic parameters corroborate the proposed mechanism.
dc.descriptionInstituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
dc.descriptionFacultad de Ingeniería
dc.formatapplication/pdf
dc.format2529-2545
dc.languageen
dc.rightshttp://creativecommons.org/licenses/by/4.0/
dc.rightsCreative Commons Attribution 4.0 International (CC BY 4.0)
dc.subjectCiencias Exactas
dc.subjectIngeniería
dc.subjectChitosan
dc.subjectMild steel
dc.subjectAcid corrosion
dc.subjectCorrosion inhibition
dc.subjectNatural polymer
dc.titleInhibition of mild steel corrosion in HCl solution using chitosan
dc.typeArticulo
dc.typeArticulo


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