Ipomoea Involcrata as an Ecofriendly Inhibitor for Aluminium in Alkaline Medium

Detalhes bibliográficos
Autor(a) principal: Obot,I. B.
Data de Publicação: 2009
Outros Autores: Obi-Egbedi,N. O.
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=S0872-19042009000400008
Resumo: The corrosion inhibition of aluminium by Ipomoea involcrata (IP) in 1 M NaOH was rapidly assessed using the gasometric technique at 30 and 60 ºC . Results obtained showed that Ipomoea involcrata acts as an inhibitor for aluminium corrosion in 1 M NaOH. Inhibition efficiency increased with increase in concentration of IP up to 55.0 % at 50 v/v% and decreased with increase in temperature. The adsorption of IP was in accord with Langmuir adsorption isotherm at the studied temperatures. A mechanism of physical adsorption is proposed from the calculated values of Ea ,Qads and ΔGads.
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spelling Ipomoea Involcrata as an Ecofriendly Inhibitor for Aluminium in Alkaline MediumIpomoea involcrataaluminiumcorrosioninhibitionadsorption isothermthermodynamicsThe corrosion inhibition of aluminium by Ipomoea involcrata (IP) in 1 M NaOH was rapidly assessed using the gasometric technique at 30 and 60 ºC . Results obtained showed that Ipomoea involcrata acts as an inhibitor for aluminium corrosion in 1 M NaOH. Inhibition efficiency increased with increase in concentration of IP up to 55.0 % at 50 v/v% and decreased with increase in temperature. The adsorption of IP was in accord with Langmuir adsorption isotherm at the studied temperatures. A mechanism of physical adsorption is proposed from the calculated values of Ea ,Qads and ΔGads.Sociedade Portuguesa de Electroquímica2009-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042009000400008Portugaliae Electrochimica Acta v.27 n.4 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=S0872-19042009000400008Obot,I. B.Obi-Egbedi,N. O.info:eu-repo/semantics/openAccess2024-02-06T17:07:00Zoai:scielo:S0872-19042009000400008Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:20:07.304593Repositório 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 Ipomoea Involcrata as an Ecofriendly Inhibitor for Aluminium in Alkaline Medium
title Ipomoea Involcrata as an Ecofriendly Inhibitor for Aluminium in Alkaline Medium
spellingShingle Ipomoea Involcrata as an Ecofriendly Inhibitor for Aluminium in Alkaline Medium
Obot,I. B.
Ipomoea involcrata
aluminium
corrosion
inhibition
adsorption isotherm
thermodynamics
title_short Ipomoea Involcrata as an Ecofriendly Inhibitor for Aluminium in Alkaline Medium
title_full Ipomoea Involcrata as an Ecofriendly Inhibitor for Aluminium in Alkaline Medium
title_fullStr Ipomoea Involcrata as an Ecofriendly Inhibitor for Aluminium in Alkaline Medium
title_full_unstemmed Ipomoea Involcrata as an Ecofriendly Inhibitor for Aluminium in Alkaline Medium
title_sort Ipomoea Involcrata as an Ecofriendly Inhibitor for Aluminium in Alkaline Medium
author Obot,I. B.
author_facet Obot,I. B.
Obi-Egbedi,N. O.
author_role author
author2 Obi-Egbedi,N. O.
author2_role author
dc.contributor.author.fl_str_mv Obot,I. B.
Obi-Egbedi,N. O.
dc.subject.por.fl_str_mv Ipomoea involcrata
aluminium
corrosion
inhibition
adsorption isotherm
thermodynamics
topic Ipomoea involcrata
aluminium
corrosion
inhibition
adsorption isotherm
thermodynamics
description The corrosion inhibition of aluminium by Ipomoea involcrata (IP) in 1 M NaOH was rapidly assessed using the gasometric technique at 30 and 60 ºC . Results obtained showed that Ipomoea involcrata acts as an inhibitor for aluminium corrosion in 1 M NaOH. Inhibition efficiency increased with increase in concentration of IP up to 55.0 % at 50 v/v% and decreased with increase in temperature. The adsorption of IP was in accord with Langmuir adsorption isotherm at the studied temperatures. A mechanism of physical adsorption is proposed from the calculated values of Ea ,Qads and ΔGads.
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=S0872-19042009000400008
url http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042009000400008
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042009000400008
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.4 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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