Electrodeposition of gold from formaldehyde-sulfite baths: bath stability and deposits characterization
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | |
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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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 |
_version_ |
1750318111920226304 |