Characterization of self-assembled thiols monolayers on gold surface by electrochemical impedance spectroscopy

Detalhes bibliográficos
Autor(a) principal: Mendes,Renata K.
Data de Publicação: 2004
Outros Autores: Freire,Renato S., Fonseca,Carla P., Neves,Silmara, Kubota,Lauro T.
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=S0103-50532004000600011
Resumo: Thiols with different alkyl chain length and containing COOH terminal group were self-assembled on gold electrodes. The electron transfer of Fe(CN)6(3-/4-) couple to the electrode was studied at different pH by means cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). Changes in solution pH resulted in the charge variation of the self-assembled monolayer (SAM) terminal group and, consequently, the electrostatic interaction of SAM with the electroactive species in the solution.
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spelling Characterization of self-assembled thiols monolayers on gold surface by electrochemical impedance spectroscopyself-assembled monolayercyclic voltammetryelectrochemical impedance spectroscopygold electrodessurface modificationThiols with different alkyl chain length and containing COOH terminal group were self-assembled on gold electrodes. The electron transfer of Fe(CN)6(3-/4-) couple to the electrode was studied at different pH by means cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). Changes in solution pH resulted in the charge variation of the self-assembled monolayer (SAM) terminal group and, consequently, the electrostatic interaction of SAM with the electroactive species in the solution.Sociedade Brasileira de Química2004-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532004000600011Journal of the Brazilian Chemical Society v.15 n.6 2004reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532004000600011info:eu-repo/semantics/openAccessMendes,Renata K.Freire,Renato S.Fonseca,Carla P.Neves,SilmaraKubota,Lauro T.eng2005-01-24T00:00:00Zoai:scielo:S0103-50532004000600011Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2005-01-24T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Characterization of self-assembled thiols monolayers on gold surface by electrochemical impedance spectroscopy
title Characterization of self-assembled thiols monolayers on gold surface by electrochemical impedance spectroscopy
spellingShingle Characterization of self-assembled thiols monolayers on gold surface by electrochemical impedance spectroscopy
Mendes,Renata K.
self-assembled monolayer
cyclic voltammetry
electrochemical impedance spectroscopy
gold electrodes
surface modification
title_short Characterization of self-assembled thiols monolayers on gold surface by electrochemical impedance spectroscopy
title_full Characterization of self-assembled thiols monolayers on gold surface by electrochemical impedance spectroscopy
title_fullStr Characterization of self-assembled thiols monolayers on gold surface by electrochemical impedance spectroscopy
title_full_unstemmed Characterization of self-assembled thiols monolayers on gold surface by electrochemical impedance spectroscopy
title_sort Characterization of self-assembled thiols monolayers on gold surface by electrochemical impedance spectroscopy
author Mendes,Renata K.
author_facet Mendes,Renata K.
Freire,Renato S.
Fonseca,Carla P.
Neves,Silmara
Kubota,Lauro T.
author_role author
author2 Freire,Renato S.
Fonseca,Carla P.
Neves,Silmara
Kubota,Lauro T.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Mendes,Renata K.
Freire,Renato S.
Fonseca,Carla P.
Neves,Silmara
Kubota,Lauro T.
dc.subject.por.fl_str_mv self-assembled monolayer
cyclic voltammetry
electrochemical impedance spectroscopy
gold electrodes
surface modification
topic self-assembled monolayer
cyclic voltammetry
electrochemical impedance spectroscopy
gold electrodes
surface modification
description Thiols with different alkyl chain length and containing COOH terminal group were self-assembled on gold electrodes. The electron transfer of Fe(CN)6(3-/4-) couple to the electrode was studied at different pH by means cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). Changes in solution pH resulted in the charge variation of the self-assembled monolayer (SAM) terminal group and, consequently, the electrostatic interaction of SAM with the electroactive species in the solution.
publishDate 2004
dc.date.none.fl_str_mv 2004-12-01
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=S0103-50532004000600011
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532004000600011
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-50532004000600011
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.15 n.6 2004
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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