CATHODIC BEHAVIOUR of ANODIZED TITANIUM IN SIMULATED PHYSIOLOGICAL CONDITIONS
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-07932011000300001&lng=pt&nrm=iso&tlng=en http://hdl.handle.net/11449/41487 |
Resumo: | In the present work, anodic oxide films on titanium specimens were formed in physiological solution under potentiostatic condition. The immediate- to short-term changes in the oxide film were studied by open-circuit potential measurements and cyclic voltammetry. The results show that the intensity of the cathodic current peak related to oxygen reduction at around -0.7 Vsce, decreased and disappeared after 30 minutes of finishing the anodic oxidation. For titanium without anodization (non-coated titanium), the cyclic voltammograms show an anodic current in the range that begins at -0.9 Vsce and continues to more positive potentials (vs SCE), related to the hydrogen oxidation reaction. For anodically polarized titanium (coated titanium), in the anodic direction of the cyclic voltammograms an anodic current in the range that begins at -0.9 Vsce and continues to more positive potentials (vs SCE) was observed. In this case, the oxidation process is related to previous cathodic processes: the hydrogen formation and the cathodic transformation of titanium oxides before the oxygen reduction potential region. |
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CATHODIC BEHAVIOUR of ANODIZED TITANIUM IN SIMULATED PHYSIOLOGICAL CONDITIONSCathodic BehaviourCyclic VoltammetryAnodized TitaniumTitanium OxideIn the present work, anodic oxide films on titanium specimens were formed in physiological solution under potentiostatic condition. The immediate- to short-term changes in the oxide film were studied by open-circuit potential measurements and cyclic voltammetry. The results show that the intensity of the cathodic current peak related to oxygen reduction at around -0.7 Vsce, decreased and disappeared after 30 minutes of finishing the anodic oxidation. For titanium without anodization (non-coated titanium), the cyclic voltammograms show an anodic current in the range that begins at -0.9 Vsce and continues to more positive potentials (vs SCE), related to the hydrogen oxidation reaction. For anodically polarized titanium (coated titanium), in the anodic direction of the cyclic voltammograms an anodic current in the range that begins at -0.9 Vsce and continues to more positive potentials (vs SCE) was observed. In this case, the oxidation process is related to previous cathodic processes: the hydrogen formation and the cathodic transformation of titanium oxides before the oxygen reduction potential region.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Univ La Habana, Fac Quim, C de La Habana 10600, CubaUFPB, CCA, Dto Ciencias Fundamentais & Sociais, BR-58397000 Areia, PB, BrazilUNESP, Inst Quim, BR-14800900 Araraquara, SP, BrazilUNESP, Inst Quim, BR-14800900 Araraquara, SP, BrazilPlapiqui(uns-conicet)Univ La HabanaUniversidade Federal da Paraíba (UFPB)Universidade Estadual Paulista (Unesp)Pelaez Abellan, E.Rocha-Sousa, L.Guastaldi, Antonio Carlos [UNESP]2014-05-20T15:32:38Z2014-05-20T15:32:38Z2011-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article199-203application/pdfhttp://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-07932011000300001&lng=pt&nrm=iso&tlng=enLatin American Applied Research. Bahia Blanca: Plapiqui(uns-conicet), v. 41, n. 3, p. 199-203, 2011.0327-0793http://hdl.handle.net/11449/41487S0327-07932011000300001WOS:000297832600001S0327-07932011000300001.pdf6443430122330366Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengLatin American Applied Research0.145info:eu-repo/semantics/openAccess2024-01-27T06:56:30Zoai:repositorio.unesp.br:11449/41487Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-06T00:05:44.242880Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
CATHODIC BEHAVIOUR of ANODIZED TITANIUM IN SIMULATED PHYSIOLOGICAL CONDITIONS |
title |
CATHODIC BEHAVIOUR of ANODIZED TITANIUM IN SIMULATED PHYSIOLOGICAL CONDITIONS |
spellingShingle |
CATHODIC BEHAVIOUR of ANODIZED TITANIUM IN SIMULATED PHYSIOLOGICAL CONDITIONS Pelaez Abellan, E. Cathodic Behaviour Cyclic Voltammetry Anodized Titanium Titanium Oxide |
title_short |
CATHODIC BEHAVIOUR of ANODIZED TITANIUM IN SIMULATED PHYSIOLOGICAL CONDITIONS |
title_full |
CATHODIC BEHAVIOUR of ANODIZED TITANIUM IN SIMULATED PHYSIOLOGICAL CONDITIONS |
title_fullStr |
CATHODIC BEHAVIOUR of ANODIZED TITANIUM IN SIMULATED PHYSIOLOGICAL CONDITIONS |
title_full_unstemmed |
CATHODIC BEHAVIOUR of ANODIZED TITANIUM IN SIMULATED PHYSIOLOGICAL CONDITIONS |
title_sort |
CATHODIC BEHAVIOUR of ANODIZED TITANIUM IN SIMULATED PHYSIOLOGICAL CONDITIONS |
author |
Pelaez Abellan, E. |
author_facet |
Pelaez Abellan, E. Rocha-Sousa, L. Guastaldi, Antonio Carlos [UNESP] |
author_role |
author |
author2 |
Rocha-Sousa, L. Guastaldi, Antonio Carlos [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Univ La Habana Universidade Federal da Paraíba (UFPB) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Pelaez Abellan, E. Rocha-Sousa, L. Guastaldi, Antonio Carlos [UNESP] |
dc.subject.por.fl_str_mv |
Cathodic Behaviour Cyclic Voltammetry Anodized Titanium Titanium Oxide |
topic |
Cathodic Behaviour Cyclic Voltammetry Anodized Titanium Titanium Oxide |
description |
In the present work, anodic oxide films on titanium specimens were formed in physiological solution under potentiostatic condition. The immediate- to short-term changes in the oxide film were studied by open-circuit potential measurements and cyclic voltammetry. The results show that the intensity of the cathodic current peak related to oxygen reduction at around -0.7 Vsce, decreased and disappeared after 30 minutes of finishing the anodic oxidation. For titanium without anodization (non-coated titanium), the cyclic voltammograms show an anodic current in the range that begins at -0.9 Vsce and continues to more positive potentials (vs SCE), related to the hydrogen oxidation reaction. For anodically polarized titanium (coated titanium), in the anodic direction of the cyclic voltammograms an anodic current in the range that begins at -0.9 Vsce and continues to more positive potentials (vs SCE) was observed. In this case, the oxidation process is related to previous cathodic processes: the hydrogen formation and the cathodic transformation of titanium oxides before the oxygen reduction potential region. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-07-01 2014-05-20T15:32:38Z 2014-05-20T15:32:38Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-07932011000300001&lng=pt&nrm=iso&tlng=en Latin American Applied Research. Bahia Blanca: Plapiqui(uns-conicet), v. 41, n. 3, p. 199-203, 2011. 0327-0793 http://hdl.handle.net/11449/41487 S0327-07932011000300001 WOS:000297832600001 S0327-07932011000300001.pdf 6443430122330366 |
url |
http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-07932011000300001&lng=pt&nrm=iso&tlng=en http://hdl.handle.net/11449/41487 |
identifier_str_mv |
Latin American Applied Research. Bahia Blanca: Plapiqui(uns-conicet), v. 41, n. 3, p. 199-203, 2011. 0327-0793 S0327-07932011000300001 WOS:000297832600001 S0327-07932011000300001.pdf 6443430122330366 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Latin American Applied Research 0.145 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
199-203 application/pdf |
dc.publisher.none.fl_str_mv |
Plapiqui(uns-conicet) |
publisher.none.fl_str_mv |
Plapiqui(uns-conicet) |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129581806256128 |