Inhibition of mild steel corrosion in HCl solution using chitosan

Autores
Umoren, Saviour Alphonsus; Banera, Mauro Jonathan; Alonso García, Teodoro; Gervasi, Claudio Alfredo; Mirífico, María Virginia
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The 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.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Facultad de Ingeniería
Materia
Ciencias Exactas
Ingeniería
Chitosan
Mild steel
Acid corrosion
Corrosion inhibition
Natural polymer
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/137338
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/137338
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Inhibition of mild steel corrosion in HCl solution using chitosanUmoren, Saviour AlphonsusBanera, Mauro JonathanAlonso García, TeodoroGervasi, Claudio AlfredoMirífico, María VirginiaCiencias ExactasIngenieríaChitosanMild steelAcid corrosionCorrosion inhibitionNatural polymerThe 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.Instituto de Investigaciones Fisicoquímicas Teóricas y AplicadasFacultad de Ingeniería2013-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf2529-2545http://sedici.unlp.edu.ar/handle/10915/137338enginfo:eu-repo/semantics/altIdentifier/issn/0969-0239info:eu-repo/semantics/altIdentifier/issn/1572-882Xinfo:eu-repo/semantics/altIdentifier/doi/10.1007/s10570-013-0021-5info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:24:10Zoai:sedici.unlp.edu.ar:10915/137338Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:24:10.797SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Inhibition of mild steel corrosion in HCl solution using chitosan
title Inhibition of mild steel corrosion in HCl solution using chitosan
spellingShingle Inhibition of mild steel corrosion in HCl solution using chitosan
Umoren, Saviour Alphonsus
Ciencias Exactas
Ingeniería
Chitosan
Mild steel
Acid corrosion
Corrosion inhibition
Natural polymer
title_short Inhibition of mild steel corrosion in HCl solution using chitosan
title_full Inhibition of mild steel corrosion in HCl solution using chitosan
title_fullStr Inhibition of mild steel corrosion in HCl solution using chitosan
title_full_unstemmed Inhibition of mild steel corrosion in HCl solution using chitosan
title_sort Inhibition of mild steel corrosion in HCl solution using chitosan
dc.creator.none.fl_str_mv Umoren, Saviour Alphonsus
Banera, Mauro Jonathan
Alonso García, Teodoro
Gervasi, Claudio Alfredo
Mirífico, María Virginia
author Umoren, Saviour Alphonsus
author_facet Umoren, Saviour Alphonsus
Banera, Mauro Jonathan
Alonso García, Teodoro
Gervasi, Claudio Alfredo
Mirífico, María Virginia
author_role author
author2 Banera, Mauro Jonathan
Alonso García, Teodoro
Gervasi, Claudio Alfredo
Mirífico, María Virginia
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Ingeniería
Chitosan
Mild steel
Acid corrosion
Corrosion inhibition
Natural polymer
topic Ciencias Exactas
Ingeniería
Chitosan
Mild steel
Acid corrosion
Corrosion inhibition
Natural polymer
dc.description.none.fl_txt_mv The 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.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Facultad de Ingeniería
description The 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.
publishDate 2013
dc.date.none.fl_str_mv 2013-10
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/137338
url http://sedici.unlp.edu.ar/handle/10915/137338
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0969-0239
info:eu-repo/semantics/altIdentifier/issn/1572-882X
info:eu-repo/semantics/altIdentifier/doi/10.1007/s10570-013-0021-5
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
2529-2545
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.22299

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