Adsorption Behaviour of [(4-Hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-(4-methoxy-phenyl)-[1] methyl]-urea on Stainless Steel in Phosphoric Media

Detalhes bibliográficos
Autor(a) principal: Olusola,James O.
Data de Publicação: 2009
Outros Autores: Oluseyi,Ajanaku K., Kehinde,Ogunniran O., Olayinka,Ajani O., Oluwatosin,John M.
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=S0872-19042009000500007
Resumo: The adsorption of [(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-(4-methoxy-phenyl)-methyl]-urea on iron in phosphoric media was studied by using electrochemical technique. The adsorption mechanism was investigated using adsorption isotherms. The experimental data fit localized adsorption models. The values for free energy of adsorption, ΔGads0, were also calculated at each surface coverage, θ of the studied compound by applying the mathematical model of Bockris - Swinkels adsorption isotherm. The variation of free energy of adsorption ΔGads0 with surface coverage, was interpreted in terms of deviation from ideal condition assumed in Langmuir model. A possible adsorption model of HPU2 molecules on to the metal surface was suggested.
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spelling Adsorption Behaviour of [(4-Hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-(4-methoxy-phenyl)-[1] methyl]-urea on Stainless Steel in Phosphoric MediaCorrosion inhibitorBockris - Swinkels adsorption isothermfree energystainless steelThe adsorption of [(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-(4-methoxy-phenyl)-methyl]-urea on iron in phosphoric media was studied by using electrochemical technique. The adsorption mechanism was investigated using adsorption isotherms. The experimental data fit localized adsorption models. The values for free energy of adsorption, ΔGads0, were also calculated at each surface coverage, θ of the studied compound by applying the mathematical model of Bockris - Swinkels adsorption isotherm. The variation of free energy of adsorption ΔGads0 with surface coverage, was interpreted in terms of deviation from ideal condition assumed in Langmuir model. A possible adsorption model of HPU2 molecules on to the metal surface was suggested.Sociedade Portuguesa de Electroquímica2009-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042009000500007Portugaliae Electrochimica Acta v.27 n.5 2009reponame: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=S0872-19042009000500007Olusola,James O.Oluseyi,Ajanaku K.Kehinde,Ogunniran O.Olayinka,Ajani O.Oluwatosin,John M.info:eu-repo/semantics/openAccess2024-02-06T17:07:01Zoai:scielo:S0872-19042009000500007Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:20:07.756634Repositório 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 Adsorption Behaviour of [(4-Hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-(4-methoxy-phenyl)-[1] methyl]-urea on Stainless Steel in Phosphoric Media
title Adsorption Behaviour of [(4-Hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-(4-methoxy-phenyl)-[1] methyl]-urea on Stainless Steel in Phosphoric Media
spellingShingle Adsorption Behaviour of [(4-Hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-(4-methoxy-phenyl)-[1] methyl]-urea on Stainless Steel in Phosphoric Media
Olusola,James O.
Corrosion inhibitor
Bockris - Swinkels adsorption isotherm
free energy
stainless steel
title_short Adsorption Behaviour of [(4-Hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-(4-methoxy-phenyl)-[1] methyl]-urea on Stainless Steel in Phosphoric Media
title_full Adsorption Behaviour of [(4-Hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-(4-methoxy-phenyl)-[1] methyl]-urea on Stainless Steel in Phosphoric Media
title_fullStr Adsorption Behaviour of [(4-Hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-(4-methoxy-phenyl)-[1] methyl]-urea on Stainless Steel in Phosphoric Media
title_full_unstemmed Adsorption Behaviour of [(4-Hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-(4-methoxy-phenyl)-[1] methyl]-urea on Stainless Steel in Phosphoric Media
title_sort Adsorption Behaviour of [(4-Hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-(4-methoxy-phenyl)-[1] methyl]-urea on Stainless Steel in Phosphoric Media
author Olusola,James O.
author_facet Olusola,James O.
Oluseyi,Ajanaku K.
Kehinde,Ogunniran O.
Olayinka,Ajani O.
Oluwatosin,John M.
author_role author
author2 Oluseyi,Ajanaku K.
Kehinde,Ogunniran O.
Olayinka,Ajani O.
Oluwatosin,John M.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Olusola,James O.
Oluseyi,Ajanaku K.
Kehinde,Ogunniran O.
Olayinka,Ajani O.
Oluwatosin,John M.
dc.subject.por.fl_str_mv Corrosion inhibitor
Bockris - Swinkels adsorption isotherm
free energy
stainless steel
topic Corrosion inhibitor
Bockris - Swinkels adsorption isotherm
free energy
stainless steel
description The adsorption of [(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-(4-methoxy-phenyl)-methyl]-urea on iron in phosphoric media was studied by using electrochemical technique. The adsorption mechanism was investigated using adsorption isotherms. The experimental data fit localized adsorption models. The values for free energy of adsorption, ΔGads0, were also calculated at each surface coverage, θ of the studied compound by applying the mathematical model of Bockris - Swinkels adsorption isotherm. The variation of free energy of adsorption ΔGads0 with surface coverage, was interpreted in terms of deviation from ideal condition assumed in Langmuir model. A possible adsorption model of HPU2 molecules on to the metal surface was suggested.
publishDate 2009
dc.date.none.fl_str_mv 2009-01-01
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=S0872-19042009000500007
url http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042009000500007
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042009000500007
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.27 n.5 2009
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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