Nucleation and growth of tin-zinc electrodeposits on a polycrystalline platinum electrode in tartaric acid

Detalhes bibliográficos
Autor(a) principal: Taguchi,Allan da S.
Data de Publicação: 2008
Outros Autores: Bento,Fábio R., Mascaro,Lucia H.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Chemical Society (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532008000400017
Resumo: Current transients measurements and scanning electron microscopy were used to characterize the electrocrystallization process and morphology of tin-zinc alloys electrodeposited on Pt, in the absence and in the presence of tartaric acid. The model of Scharifker and Hills was used to analyze the current transients and it revealed that Sn-Zn electrocrystallization process in the presence of tartrate, under the studied conditions, is governed by three-dimensional progressive nucleation controlled by diffusion. In the absence of the complexant, the results indicated that nucleation process changes from instantaneous to progressive when the deposition potential becomes more negative, or when the incorporation of zinc occured to the deposit. The microscopic results showed deposits with two layers with different morphologies and is also influenced by deposition potential.
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spelling Nucleation and growth of tin-zinc electrodeposits on a polycrystalline platinum electrode in tartaric acidtinzincalloyelectrodepositionelectrocrystallizationCurrent transients measurements and scanning electron microscopy were used to characterize the electrocrystallization process and morphology of tin-zinc alloys electrodeposited on Pt, in the absence and in the presence of tartaric acid. The model of Scharifker and Hills was used to analyze the current transients and it revealed that Sn-Zn electrocrystallization process in the presence of tartrate, under the studied conditions, is governed by three-dimensional progressive nucleation controlled by diffusion. In the absence of the complexant, the results indicated that nucleation process changes from instantaneous to progressive when the deposition potential becomes more negative, or when the incorporation of zinc occured to the deposit. The microscopic results showed deposits with two layers with different morphologies and is also influenced by deposition potential.Sociedade Brasileira de Química2008-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532008000400017Journal of the Brazilian Chemical Society v.19 n.4 2008reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532008000400017info:eu-repo/semantics/openAccessTaguchi,Allan da S.Bento,Fábio R.Mascaro,Lucia H.eng2008-06-12T00:00:00Zoai:scielo:S0103-50532008000400017Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2008-06-12T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Nucleation and growth of tin-zinc electrodeposits on a polycrystalline platinum electrode in tartaric acid
title Nucleation and growth of tin-zinc electrodeposits on a polycrystalline platinum electrode in tartaric acid
spellingShingle Nucleation and growth of tin-zinc electrodeposits on a polycrystalline platinum electrode in tartaric acid
Taguchi,Allan da S.
tin
zinc
alloy
electrodeposition
electrocrystallization
title_short Nucleation and growth of tin-zinc electrodeposits on a polycrystalline platinum electrode in tartaric acid
title_full Nucleation and growth of tin-zinc electrodeposits on a polycrystalline platinum electrode in tartaric acid
title_fullStr Nucleation and growth of tin-zinc electrodeposits on a polycrystalline platinum electrode in tartaric acid
title_full_unstemmed Nucleation and growth of tin-zinc electrodeposits on a polycrystalline platinum electrode in tartaric acid
title_sort Nucleation and growth of tin-zinc electrodeposits on a polycrystalline platinum electrode in tartaric acid
author Taguchi,Allan da S.
author_facet Taguchi,Allan da S.
Bento,Fábio R.
Mascaro,Lucia H.
author_role author
author2 Bento,Fábio R.
Mascaro,Lucia H.
author2_role author
author
dc.contributor.author.fl_str_mv Taguchi,Allan da S.
Bento,Fábio R.
Mascaro,Lucia H.
dc.subject.por.fl_str_mv tin
zinc
alloy
electrodeposition
electrocrystallization
topic tin
zinc
alloy
electrodeposition
electrocrystallization
description Current transients measurements and scanning electron microscopy were used to characterize the electrocrystallization process and morphology of tin-zinc alloys electrodeposited on Pt, in the absence and in the presence of tartaric acid. The model of Scharifker and Hills was used to analyze the current transients and it revealed that Sn-Zn electrocrystallization process in the presence of tartrate, under the studied conditions, is governed by three-dimensional progressive nucleation controlled by diffusion. In the absence of the complexant, the results indicated that nucleation process changes from instantaneous to progressive when the deposition potential becomes more negative, or when the incorporation of zinc occured to the deposit. The microscopic results showed deposits with two layers with different morphologies and is also influenced by deposition potential.
publishDate 2008
dc.date.none.fl_str_mv 2008-01-01
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=S0103-50532008000400017
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532008000400017
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-50532008000400017
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 Journal of the Brazilian Chemical Society v.19 n.4 2008
reponame:Journal of the Brazilian Chemical Society (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Journal of the Brazilian Chemical Society (Online)
collection Journal of the Brazilian Chemical Society (Online)
repository.name.fl_str_mv Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv ||office@jbcs.sbq.org.br
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