Aromatic Carboxylic Acids as Corrosion Inhibitors for Aluminium in Alkaline Solution

Detalhes bibliográficos
Autor(a) principal: Madram,Ali Reza
Data de Publicação: 2016
Outros Autores: Shokri,Foroozan, Sovizi,Mohammad Reza, Kalhor,Hamide
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042016000600003
Resumo: The corrosion behavior of aluminium in 1 M NaOH solution, in the absence and presence of some aromatic carboxylic acids, was investigated using potentiodynamic polarization techniques, electrochemical impedance spectroscopy (EIS) and scanning electron microscope (SEM). The results among the investigated aromatic carboxylic acids, 4-bromomethyl, 3-bromo and 3-hydroxy benzoic acid were more efficient corrosion inhibitors for aluminium in alkaline medium. The values of different thermodynamic parameters such as adsorption equilibrium constant (Kads) and free energy of adsorption (ΔGads) were calculated and discussed. The adsorption process of studied inhibitors on aluminium surface obeys the Langmuir adsorption isotherm.
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spelling Aromatic Carboxylic Acids as Corrosion Inhibitors for Aluminium in Alkaline Solutionaluminium corrosionaromatic carboxylic acidsinhibitorelectrochemical impedance spectroscopypotentiodynamic polarizationThe corrosion behavior of aluminium in 1 M NaOH solution, in the absence and presence of some aromatic carboxylic acids, was investigated using potentiodynamic polarization techniques, electrochemical impedance spectroscopy (EIS) and scanning electron microscope (SEM). The results among the investigated aromatic carboxylic acids, 4-bromomethyl, 3-bromo and 3-hydroxy benzoic acid were more efficient corrosion inhibitors for aluminium in alkaline medium. The values of different thermodynamic parameters such as adsorption equilibrium constant (Kads) and free energy of adsorption (ΔGads) were calculated and discussed. The adsorption process of studied inhibitors on aluminium surface obeys the Langmuir adsorption isotherm.Sociedade Portuguesa de Electroquímica2016-11-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042016000600003Portugaliae Electrochimica Acta v.34 n.6 2016reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAPenghttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042016000600003Madram,Ali RezaShokri,ForoozanSovizi,Mohammad RezaKalhor,Hamideinfo:eu-repo/semantics/openAccess2024-02-06T17:07:23Zoai:scielo:S0872-19042016000600003Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:20:19.081790Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Aromatic Carboxylic Acids as Corrosion Inhibitors for Aluminium in Alkaline Solution
title Aromatic Carboxylic Acids as Corrosion Inhibitors for Aluminium in Alkaline Solution
spellingShingle Aromatic Carboxylic Acids as Corrosion Inhibitors for Aluminium in Alkaline Solution
Madram,Ali Reza
aluminium corrosion
aromatic carboxylic acids
inhibitor
electrochemical impedance spectroscopy
potentiodynamic polarization
title_short Aromatic Carboxylic Acids as Corrosion Inhibitors for Aluminium in Alkaline Solution
title_full Aromatic Carboxylic Acids as Corrosion Inhibitors for Aluminium in Alkaline Solution
title_fullStr Aromatic Carboxylic Acids as Corrosion Inhibitors for Aluminium in Alkaline Solution
title_full_unstemmed Aromatic Carboxylic Acids as Corrosion Inhibitors for Aluminium in Alkaline Solution
title_sort Aromatic Carboxylic Acids as Corrosion Inhibitors for Aluminium in Alkaline Solution
author Madram,Ali Reza
author_facet Madram,Ali Reza
Shokri,Foroozan
Sovizi,Mohammad Reza
Kalhor,Hamide
author_role author
author2 Shokri,Foroozan
Sovizi,Mohammad Reza
Kalhor,Hamide
author2_role author
author
author
dc.contributor.author.fl_str_mv Madram,Ali Reza
Shokri,Foroozan
Sovizi,Mohammad Reza
Kalhor,Hamide
dc.subject.por.fl_str_mv aluminium corrosion
aromatic carboxylic acids
inhibitor
electrochemical impedance spectroscopy
potentiodynamic polarization
topic aluminium corrosion
aromatic carboxylic acids
inhibitor
electrochemical impedance spectroscopy
potentiodynamic polarization
description The corrosion behavior of aluminium in 1 M NaOH solution, in the absence and presence of some aromatic carboxylic acids, was investigated using potentiodynamic polarization techniques, electrochemical impedance spectroscopy (EIS) and scanning electron microscope (SEM). The results among the investigated aromatic carboxylic acids, 4-bromomethyl, 3-bromo and 3-hydroxy benzoic acid were more efficient corrosion inhibitors for aluminium in alkaline medium. The values of different thermodynamic parameters such as adsorption equilibrium constant (Kads) and free energy of adsorption (ΔGads) were calculated and discussed. The adsorption process of studied inhibitors on aluminium surface obeys the Langmuir adsorption isotherm.
publishDate 2016
dc.date.none.fl_str_mv 2016-11-01
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042016000600003
url http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042016000600003
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042016000600003
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Portuguesa de Electroquímica
publisher.none.fl_str_mv Sociedade Portuguesa de Electroquímica
dc.source.none.fl_str_mv Portugaliae Electrochimica Acta v.34 n.6 2016
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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