Electrodeposition of gold from formaldehyde-sulfite baths: bath stability and deposits characterization

Detalhes bibliográficos
Autor(a) principal: Cardoso,Juliana L.
Data de Publicação: 2011
Outros Autores: Santos Filho,Sebastião G. dos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000400017
Resumo: It was investigated Au(I)-sulfite baths containing formaldehyde. As a result, high stability was achieved for baths containing formaldehyde concentration close to 10 mL L-1 with a lifetime superior to 600 days. On the other hand, cyclic voltammograms indicated that the increase of formaldehyde concentration in the bath promotes decreasing of the maximum cathodic current, so that, if the formaldehyde concentration is high, the surface areal concentration of gold will be low. Also, the lowest surface roughness was obtained for 10 mL L-1 of formaldehyde.
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spelling Electrodeposition of gold from formaldehyde-sulfite baths: bath stability and deposits characterizationelectrodepositionformaldehydegold bathIt was investigated Au(I)-sulfite baths containing formaldehyde. As a result, high stability was achieved for baths containing formaldehyde concentration close to 10 mL L-1 with a lifetime superior to 600 days. On the other hand, cyclic voltammograms indicated that the increase of formaldehyde concentration in the bath promotes decreasing of the maximum cathodic current, so that, if the formaldehyde concentration is high, the surface areal concentration of gold will be low. Also, the lowest surface roughness was obtained for 10 mL L-1 of formaldehyde.Sociedade Brasileira de Química2011-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000400017Química Nova v.34 n.4 2011reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422011000400017info:eu-repo/semantics/openAccessCardoso,Juliana L.Santos Filho,Sebastião G. doseng2011-05-20T00:00:00Zoai:scielo:S0100-40422011000400017Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2011-05-20T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Electrodeposition of gold from formaldehyde-sulfite baths: bath stability and deposits characterization
title Electrodeposition of gold from formaldehyde-sulfite baths: bath stability and deposits characterization
spellingShingle Electrodeposition of gold from formaldehyde-sulfite baths: bath stability and deposits characterization
Cardoso,Juliana L.
electrodeposition
formaldehyde
gold bath
title_short Electrodeposition of gold from formaldehyde-sulfite baths: bath stability and deposits characterization
title_full Electrodeposition of gold from formaldehyde-sulfite baths: bath stability and deposits characterization
title_fullStr Electrodeposition of gold from formaldehyde-sulfite baths: bath stability and deposits characterization
title_full_unstemmed Electrodeposition of gold from formaldehyde-sulfite baths: bath stability and deposits characterization
title_sort Electrodeposition of gold from formaldehyde-sulfite baths: bath stability and deposits characterization
author Cardoso,Juliana L.
author_facet Cardoso,Juliana L.
Santos Filho,Sebastião G. dos
author_role author
author2 Santos Filho,Sebastião G. dos
author2_role author
dc.contributor.author.fl_str_mv Cardoso,Juliana L.
Santos Filho,Sebastião G. dos
dc.subject.por.fl_str_mv electrodeposition
formaldehyde
gold bath
topic electrodeposition
formaldehyde
gold bath
description It was investigated Au(I)-sulfite baths containing formaldehyde. As a result, high stability was achieved for baths containing formaldehyde concentration close to 10 mL L-1 with a lifetime superior to 600 days. On the other hand, cyclic voltammograms indicated that the increase of formaldehyde concentration in the bath promotes decreasing of the maximum cathodic current, so that, if the formaldehyde concentration is high, the surface areal concentration of gold will be low. Also, the lowest surface roughness was obtained for 10 mL L-1 of formaldehyde.
publishDate 2011
dc.date.none.fl_str_mv 2011-01-01
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=S0100-40422011000400017
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000400017
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-40422011000400017
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.34 n.4 2011
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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