Kinetic measurements during transient film growth on zinc

Detalhes bibliográficos
Autor(a) principal: Chen,Yun
Data de Publicação: 2009
Outros Autores: Lobo,Rui F. M., Santos,Diogo M. F., Sequeira,César A. C.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000200022
Resumo: The electrochemical behaviour of zinc has been extensively studied in alkaline and acid media, but only a few studies have been reported in neutral solutions, particularly in deaerated media. Zinc passivation in neutral medium and the effect of the ClO4- ion on the nucleation and growth of the passive layer is studied in this paper by a transient technique at different electrolyte concentrations and applied potentials. ZnO growth rate was shown to decrease with increasing electrolyte concentration. Moreover, passive layer growth occurred followed by pitting nucleation and growth. Film growth and pit nucleation are explained by means of the Macdonald and Engell-Stolica models.
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spelling Kinetic measurements during transient film growth on zinczincpassivationpittingThe electrochemical behaviour of zinc has been extensively studied in alkaline and acid media, but only a few studies have been reported in neutral solutions, particularly in deaerated media. Zinc passivation in neutral medium and the effect of the ClO4- ion on the nucleation and growth of the passive layer is studied in this paper by a transient technique at different electrolyte concentrations and applied potentials. ZnO growth rate was shown to decrease with increasing electrolyte concentration. Moreover, passive layer growth occurred followed by pitting nucleation and growth. Film growth and pit nucleation are explained by means of the Macdonald and Engell-Stolica models.Sociedade Brasileira de Química2009-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000200022Química Nova v.32 n.2 2009reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422009000200022info:eu-repo/semantics/openAccessChen,YunLobo,Rui F. M.Santos,Diogo M. F.Sequeira,César A. C.eng2009-04-23T00:00:00Zoai:scielo:S0100-40422009000200022Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2009-04-23T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Kinetic measurements during transient film growth on zinc
title Kinetic measurements during transient film growth on zinc
spellingShingle Kinetic measurements during transient film growth on zinc
Chen,Yun
zinc
passivation
pitting
title_short Kinetic measurements during transient film growth on zinc
title_full Kinetic measurements during transient film growth on zinc
title_fullStr Kinetic measurements during transient film growth on zinc
title_full_unstemmed Kinetic measurements during transient film growth on zinc
title_sort Kinetic measurements during transient film growth on zinc
author Chen,Yun
author_facet Chen,Yun
Lobo,Rui F. M.
Santos,Diogo M. F.
Sequeira,César A. C.
author_role author
author2 Lobo,Rui F. M.
Santos,Diogo M. F.
Sequeira,César A. C.
author2_role author
author
author
dc.contributor.author.fl_str_mv Chen,Yun
Lobo,Rui F. M.
Santos,Diogo M. F.
Sequeira,César A. C.
dc.subject.por.fl_str_mv zinc
passivation
pitting
topic zinc
passivation
pitting
description The electrochemical behaviour of zinc has been extensively studied in alkaline and acid media, but only a few studies have been reported in neutral solutions, particularly in deaerated media. Zinc passivation in neutral medium and the effect of the ClO4- ion on the nucleation and growth of the passive layer is studied in this paper by a transient technique at different electrolyte concentrations and applied potentials. ZnO growth rate was shown to decrease with increasing electrolyte concentration. Moreover, passive layer growth occurred followed by pitting nucleation and growth. Film growth and pit nucleation are explained by means of the Macdonald and Engell-Stolica models.
publishDate 2009
dc.date.none.fl_str_mv 2009-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000200022
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000200022
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-40422009000200022
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 Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Química Nova v.32 n.2 2009
reponame:Química Nova (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Química Nova (Online)
collection Química Nova (Online)
repository.name.fl_str_mv Química Nova (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv quimicanova@sbq.org.br
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