Corrosion inhibition of copper in 1 M HNO3 solution by N-phenyl Oxalic Dihydrazide and Oxalic N-phenylhydrazide N’-phenylthiosemicarbazide

Detalhes bibliográficos
Autor(a) principal: Larabi,Lahcène
Data de Publicação: 2006
Outros Autores: Benali,Omar, Harek,Yahia
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=S0872-19042006000300002
Resumo: This work is centered on the study of the corrosion inhibition of copper in 1 M HNO3 by N-phenyl oxalic dihydrazide (PODH) and oxalic N-phenylhydrazide N’-phenylthiosemicarbazide (OPHPT) synthesized in our laboratory. The inhibition efficiency obtained by chemical (weight loss) and electrochemical (potentiodynamic polarization) techniques shows that these compounds are very good inhibitors. Polarization curves indicate that OPHPT acts as a mixed type inhibitor while PODH acts on the cathodic reaction. The adsorption of these inhibitors is found to obey Langmuir adsorption isotherm. The thermodynamic functions of adsorption and dissolution processes were calculated.
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spelling Corrosion inhibition of copper in 1 M HNO3 solution by N-phenyl Oxalic Dihydrazide and Oxalic N-phenylhydrazide N’-phenylthiosemicarbazideacidcorrosion inhibitorscopperthiosemicarbazidehydrazideThis work is centered on the study of the corrosion inhibition of copper in 1 M HNO3 by N-phenyl oxalic dihydrazide (PODH) and oxalic N-phenylhydrazide N’-phenylthiosemicarbazide (OPHPT) synthesized in our laboratory. The inhibition efficiency obtained by chemical (weight loss) and electrochemical (potentiodynamic polarization) techniques shows that these compounds are very good inhibitors. Polarization curves indicate that OPHPT acts as a mixed type inhibitor while PODH acts on the cathodic reaction. The adsorption of these inhibitors is found to obey Langmuir adsorption isotherm. The thermodynamic functions of adsorption and dissolution processes were calculated.Sociedade Portuguesa de Electroquímica2006-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042006000300002Portugaliae Electrochimica Acta v.24 n.3 2006reponame: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=S0872-19042006000300002Larabi,LahcèneBenali,OmarHarek,Yahiainfo:eu-repo/semantics/openAccess2024-02-06T17:06:49Zoai:scielo:S0872-19042006000300002Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:20:01.100696Repositório 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 Corrosion inhibition of copper in 1 M HNO3 solution by N-phenyl Oxalic Dihydrazide and Oxalic N-phenylhydrazide N’-phenylthiosemicarbazide
title Corrosion inhibition of copper in 1 M HNO3 solution by N-phenyl Oxalic Dihydrazide and Oxalic N-phenylhydrazide N’-phenylthiosemicarbazide
spellingShingle Corrosion inhibition of copper in 1 M HNO3 solution by N-phenyl Oxalic Dihydrazide and Oxalic N-phenylhydrazide N’-phenylthiosemicarbazide
Larabi,Lahcène
acid
corrosion inhibitors
copper
thiosemicarbazide
hydrazide
title_short Corrosion inhibition of copper in 1 M HNO3 solution by N-phenyl Oxalic Dihydrazide and Oxalic N-phenylhydrazide N’-phenylthiosemicarbazide
title_full Corrosion inhibition of copper in 1 M HNO3 solution by N-phenyl Oxalic Dihydrazide and Oxalic N-phenylhydrazide N’-phenylthiosemicarbazide
title_fullStr Corrosion inhibition of copper in 1 M HNO3 solution by N-phenyl Oxalic Dihydrazide and Oxalic N-phenylhydrazide N’-phenylthiosemicarbazide
title_full_unstemmed Corrosion inhibition of copper in 1 M HNO3 solution by N-phenyl Oxalic Dihydrazide and Oxalic N-phenylhydrazide N’-phenylthiosemicarbazide
title_sort Corrosion inhibition of copper in 1 M HNO3 solution by N-phenyl Oxalic Dihydrazide and Oxalic N-phenylhydrazide N’-phenylthiosemicarbazide
author Larabi,Lahcène
author_facet Larabi,Lahcène
Benali,Omar
Harek,Yahia
author_role author
author2 Benali,Omar
Harek,Yahia
author2_role author
author
dc.contributor.author.fl_str_mv Larabi,Lahcène
Benali,Omar
Harek,Yahia
dc.subject.por.fl_str_mv acid
corrosion inhibitors
copper
thiosemicarbazide
hydrazide
topic acid
corrosion inhibitors
copper
thiosemicarbazide
hydrazide
description This work is centered on the study of the corrosion inhibition of copper in 1 M HNO3 by N-phenyl oxalic dihydrazide (PODH) and oxalic N-phenylhydrazide N’-phenylthiosemicarbazide (OPHPT) synthesized in our laboratory. The inhibition efficiency obtained by chemical (weight loss) and electrochemical (potentiodynamic polarization) techniques shows that these compounds are very good inhibitors. Polarization curves indicate that OPHPT acts as a mixed type inhibitor while PODH acts on the cathodic reaction. The adsorption of these inhibitors is found to obey Langmuir adsorption isotherm. The thermodynamic functions of adsorption and dissolution processes were calculated.
publishDate 2006
dc.date.none.fl_str_mv 2006-01-01
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=S0872-19042006000300002
url http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042006000300002
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042006000300002
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.24 n.3 2006
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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