Phosphate of Aluminum as Corrosion Inhibitor for Steel in H3PO4

Detalhes bibliográficos
Autor(a) principal: Alaoui,L. Malki
Data de Publicação: 2008
Outros Autores: Kertit,S., Bellaouchou,A., Guenbour,A., Benbachir,A., Hammouti,B.
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=S0872-19042008000400003
Resumo: The influence of phosphate of aluminum (PA) on the corrosion inhibition of mild steel in phosphoric acid solution was studied using the weight-loss method. The electrochemical performance of the inhibitors was also investigated through potentiodynamic polarisation and EIS measurements. The inhibition efficiency of inhibitor increases with concentration to attain 84 % at 10-2M of PA in 0.33 M H3PO4. Polarization studies show that PA is a mixed-type inhibitor and acts both on the cathodic and anodic reactions without changing the mechanism of the hydrogen evolution reaction. The inhibition efficiency of PA is temperature-dependent in the range 298 - 363 K, the associated activation energy has been determined. PA adsorbs on the steel surface according to a Langmuir isotherm adsorption model.
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spelling Phosphate of Aluminum as Corrosion Inhibitor for Steel in H3PO4mild steelphosphate of aluminumphosphoric acidcorrosionThe influence of phosphate of aluminum (PA) on the corrosion inhibition of mild steel in phosphoric acid solution was studied using the weight-loss method. The electrochemical performance of the inhibitors was also investigated through potentiodynamic polarisation and EIS measurements. The inhibition efficiency of inhibitor increases with concentration to attain 84 % at 10-2M of PA in 0.33 M H3PO4. Polarization studies show that PA is a mixed-type inhibitor and acts both on the cathodic and anodic reactions without changing the mechanism of the hydrogen evolution reaction. The inhibition efficiency of PA is temperature-dependent in the range 298 - 363 K, the associated activation energy has been determined. PA adsorbs on the steel surface according to a Langmuir isotherm adsorption model.Sociedade Portuguesa de Electroquímica2008-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042008000400003Portugaliae Electrochimica Acta v.26 n.4 2008reponame: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=S0872-19042008000400003Alaoui,L. MalkiKertit,S.Bellaouchou,A.Guenbour,A.Benbachir,A.Hammouti,B.info:eu-repo/semantics/openAccess2024-02-06T17:06:55Zoai:scielo:S0872-19042008000400003Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:20:04.617753Repositório 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 Phosphate of Aluminum as Corrosion Inhibitor for Steel in H3PO4
title Phosphate of Aluminum as Corrosion Inhibitor for Steel in H3PO4
spellingShingle Phosphate of Aluminum as Corrosion Inhibitor for Steel in H3PO4
Alaoui,L. Malki
mild steel
phosphate of aluminum
phosphoric acid
corrosion
title_short Phosphate of Aluminum as Corrosion Inhibitor for Steel in H3PO4
title_full Phosphate of Aluminum as Corrosion Inhibitor for Steel in H3PO4
title_fullStr Phosphate of Aluminum as Corrosion Inhibitor for Steel in H3PO4
title_full_unstemmed Phosphate of Aluminum as Corrosion Inhibitor for Steel in H3PO4
title_sort Phosphate of Aluminum as Corrosion Inhibitor for Steel in H3PO4
author Alaoui,L. Malki
author_facet Alaoui,L. Malki
Kertit,S.
Bellaouchou,A.
Guenbour,A.
Benbachir,A.
Hammouti,B.
author_role author
author2 Kertit,S.
Bellaouchou,A.
Guenbour,A.
Benbachir,A.
Hammouti,B.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Alaoui,L. Malki
Kertit,S.
Bellaouchou,A.
Guenbour,A.
Benbachir,A.
Hammouti,B.
dc.subject.por.fl_str_mv mild steel
phosphate of aluminum
phosphoric acid
corrosion
topic mild steel
phosphate of aluminum
phosphoric acid
corrosion
description The influence of phosphate of aluminum (PA) on the corrosion inhibition of mild steel in phosphoric acid solution was studied using the weight-loss method. The electrochemical performance of the inhibitors was also investigated through potentiodynamic polarisation and EIS measurements. The inhibition efficiency of inhibitor increases with concentration to attain 84 % at 10-2M of PA in 0.33 M H3PO4. Polarization studies show that PA is a mixed-type inhibitor and acts both on the cathodic and anodic reactions without changing the mechanism of the hydrogen evolution reaction. The inhibition efficiency of PA is temperature-dependent in the range 298 - 363 K, the associated activation energy has been determined. PA adsorbs on the steel surface according to a Langmuir isotherm adsorption model.
publishDate 2008
dc.date.none.fl_str_mv 2008-01-01
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=S0872-19042008000400003
url http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042008000400003
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042008000400003
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.26 n.4 2008
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
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