Electrodeposition of polypyrrole films on aluminum surfaces from a p-toluene sulfonic acid medium

Detalhes bibliográficos
Autor(a) principal: Liu,Andréa Santos
Data de Publicação: 2009
Outros Autores: Bezerra,Marcia Cristina, Cho,Liu Yao
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392009000400021
Resumo: Electrodeposition of polypyrrole films on aluminum from aqueous solutions containing p-toluene sulfonic acid and pyrrole was performed by cyclic voltammetry and galvanostatic technique. The influence of applied current density on the morphology of the films was studied by Scanning Electron Microscopy. The films displayed a cauliflower-like structure consisting of micro-spherical grains. This structure is related to dopand intercalation in the polymeric chain. Films deposited at higher current density were more susceptible to the formation of pores and defects along the polymeric chain than films deposited at lower current density. These pores allow the penetration of aggressive species, thereby favoring the corrosion process.
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spelling Electrodeposition of polypyrrole films on aluminum surfaces from a p-toluene sulfonic acid mediumelectrodepositionpolypyrrolealuminump-toluene sulfonic acidElectrodeposition of polypyrrole films on aluminum from aqueous solutions containing p-toluene sulfonic acid and pyrrole was performed by cyclic voltammetry and galvanostatic technique. The influence of applied current density on the morphology of the films was studied by Scanning Electron Microscopy. The films displayed a cauliflower-like structure consisting of micro-spherical grains. This structure is related to dopand intercalation in the polymeric chain. Films deposited at higher current density were more susceptible to the formation of pores and defects along the polymeric chain than films deposited at lower current density. These pores allow the penetration of aggressive species, thereby favoring the corrosion process.ABM, ABC, ABPol2009-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392009000400021Materials Research v.12 n.4 2009reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392009000400021info:eu-repo/semantics/openAccessLiu,Andréa SantosBezerra,Marcia CristinaCho,Liu Yaoeng2010-01-19T00:00:00Zoai:scielo:S1516-14392009000400021Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2010-01-19T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Electrodeposition of polypyrrole films on aluminum surfaces from a p-toluene sulfonic acid medium
title Electrodeposition of polypyrrole films on aluminum surfaces from a p-toluene sulfonic acid medium
spellingShingle Electrodeposition of polypyrrole films on aluminum surfaces from a p-toluene sulfonic acid medium
Liu,Andréa Santos
electrodeposition
polypyrrole
aluminum
p-toluene sulfonic acid
title_short Electrodeposition of polypyrrole films on aluminum surfaces from a p-toluene sulfonic acid medium
title_full Electrodeposition of polypyrrole films on aluminum surfaces from a p-toluene sulfonic acid medium
title_fullStr Electrodeposition of polypyrrole films on aluminum surfaces from a p-toluene sulfonic acid medium
title_full_unstemmed Electrodeposition of polypyrrole films on aluminum surfaces from a p-toluene sulfonic acid medium
title_sort Electrodeposition of polypyrrole films on aluminum surfaces from a p-toluene sulfonic acid medium
author Liu,Andréa Santos
author_facet Liu,Andréa Santos
Bezerra,Marcia Cristina
Cho,Liu Yao
author_role author
author2 Bezerra,Marcia Cristina
Cho,Liu Yao
author2_role author
author
dc.contributor.author.fl_str_mv Liu,Andréa Santos
Bezerra,Marcia Cristina
Cho,Liu Yao
dc.subject.por.fl_str_mv electrodeposition
polypyrrole
aluminum
p-toluene sulfonic acid
topic electrodeposition
polypyrrole
aluminum
p-toluene sulfonic acid
description Electrodeposition of polypyrrole films on aluminum from aqueous solutions containing p-toluene sulfonic acid and pyrrole was performed by cyclic voltammetry and galvanostatic technique. The influence of applied current density on the morphology of the films was studied by Scanning Electron Microscopy. The films displayed a cauliflower-like structure consisting of micro-spherical grains. This structure is related to dopand intercalation in the polymeric chain. Films deposited at higher current density were more susceptible to the formation of pores and defects along the polymeric chain than films deposited at lower current density. These pores allow the penetration of aggressive species, thereby favoring the corrosion process.
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=S1516-14392009000400021
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392009000400021
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392009000400021
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 ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.12 n.4 2009
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
_version_ 1754212659340771328

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