Polypyrrole Film Doped with Corrosion-Inhibitors Electropolymerized on AA 1100

Detalhes bibliográficos
Autor(a) principal: Dalmoro,Viviane
Data de Publicação: 2019
Outros Autores: Cedron,Suelen, Azambuja,Denise Schermann, Castagno,Kátia Regina Lemos
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=S1516-14392019000700226
Resumo: Polypyrrole films doped with dodecylbenzenesulfonate (PPy/DBS) and with oxy-anions tungstate (PPy/DBS/TUN) and vanadate (PPy/DBS/VAN) were potentiostatically electropolymerized on aluminum alloy 1100 (AA1100). The corrosion protection of these films was evaluated by the variation of the corrosion potential (ECORR) with the immersion time and by electrochemical impedance spectroscopy (EIS) measurements in 0.05 mol L-1 NaCl and 0.05 mol L-1 HCl solutions. The EIS measurements suggest that the tungstate and the vanadate play the role of a dopant and an inhibitor. The results presented here show that PPy/DBS/TUN and PPy/DBS/VANprovide a protective effect against the corrosion of the AA1100. It was shown that the oxyanions’ inhibitory action is different depending on the electrolyte pH. In an HCl solution PPy/DBS/TUN films improve protection against aluminum alloy’s corrosion. On the other hand, in a NaCl solution, PPy/DBS/VAN films and PPy/DBS/TUN films act as inhibitor, the former being more effective.
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spelling Polypyrrole Film Doped with Corrosion-Inhibitors Electropolymerized on AA 1100Polymerscorrosion testelectrochemical techniquesPolypyrrole films doped with dodecylbenzenesulfonate (PPy/DBS) and with oxy-anions tungstate (PPy/DBS/TUN) and vanadate (PPy/DBS/VAN) were potentiostatically electropolymerized on aluminum alloy 1100 (AA1100). The corrosion protection of these films was evaluated by the variation of the corrosion potential (ECORR) with the immersion time and by electrochemical impedance spectroscopy (EIS) measurements in 0.05 mol L-1 NaCl and 0.05 mol L-1 HCl solutions. The EIS measurements suggest that the tungstate and the vanadate play the role of a dopant and an inhibitor. The results presented here show that PPy/DBS/TUN and PPy/DBS/VANprovide a protective effect against the corrosion of the AA1100. It was shown that the oxyanions’ inhibitory action is different depending on the electrolyte pH. In an HCl solution PPy/DBS/TUN films improve protection against aluminum alloy’s corrosion. On the other hand, in a NaCl solution, PPy/DBS/VAN films and PPy/DBS/TUN films act as inhibitor, the former being more effective.ABM, ABC, ABPol2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000700226Materials Research v.22 suppl.1 2019reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-mr-2018-0919info:eu-repo/semantics/openAccessDalmoro,VivianeCedron,SuelenAzambuja,Denise SchermannCastagno,Kátia Regina Lemoseng2019-10-04T00:00:00Zoai:scielo:S1516-14392019000700226Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2019-10-04T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Polypyrrole Film Doped with Corrosion-Inhibitors Electropolymerized on AA 1100
title Polypyrrole Film Doped with Corrosion-Inhibitors Electropolymerized on AA 1100
spellingShingle Polypyrrole Film Doped with Corrosion-Inhibitors Electropolymerized on AA 1100
Dalmoro,Viviane
Polymers
corrosion test
electrochemical techniques
title_short Polypyrrole Film Doped with Corrosion-Inhibitors Electropolymerized on AA 1100
title_full Polypyrrole Film Doped with Corrosion-Inhibitors Electropolymerized on AA 1100
title_fullStr Polypyrrole Film Doped with Corrosion-Inhibitors Electropolymerized on AA 1100
title_full_unstemmed Polypyrrole Film Doped with Corrosion-Inhibitors Electropolymerized on AA 1100
title_sort Polypyrrole Film Doped with Corrosion-Inhibitors Electropolymerized on AA 1100
author Dalmoro,Viviane
author_facet Dalmoro,Viviane
Cedron,Suelen
Azambuja,Denise Schermann
Castagno,Kátia Regina Lemos
author_role author
author2 Cedron,Suelen
Azambuja,Denise Schermann
Castagno,Kátia Regina Lemos
author2_role author
author
author
dc.contributor.author.fl_str_mv Dalmoro,Viviane
Cedron,Suelen
Azambuja,Denise Schermann
Castagno,Kátia Regina Lemos
dc.subject.por.fl_str_mv Polymers
corrosion test
electrochemical techniques
topic Polymers
corrosion test
electrochemical techniques
description Polypyrrole films doped with dodecylbenzenesulfonate (PPy/DBS) and with oxy-anions tungstate (PPy/DBS/TUN) and vanadate (PPy/DBS/VAN) were potentiostatically electropolymerized on aluminum alloy 1100 (AA1100). The corrosion protection of these films was evaluated by the variation of the corrosion potential (ECORR) with the immersion time and by electrochemical impedance spectroscopy (EIS) measurements in 0.05 mol L-1 NaCl and 0.05 mol L-1 HCl solutions. The EIS measurements suggest that the tungstate and the vanadate play the role of a dopant and an inhibitor. The results presented here show that PPy/DBS/TUN and PPy/DBS/VANprovide a protective effect against the corrosion of the AA1100. It was shown that the oxyanions’ inhibitory action is different depending on the electrolyte pH. In an HCl solution PPy/DBS/TUN films improve protection against aluminum alloy’s corrosion. On the other hand, in a NaCl solution, PPy/DBS/VAN films and PPy/DBS/TUN films act as inhibitor, the former being more effective.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-01
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=S1516-14392019000700226
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000700226
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1980-5373-mr-2018-0919
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.22 suppl.1 2019
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
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