CATHODIC BEHAVIOUR of ANODIZED TITANIUM IN SIMULATED PHYSIOLOGICAL CONDITIONS

Detalhes bibliográficos
Autor(a) principal: Pelaez Abellan, E.
Data de Publicação: 2011
Outros Autores: Rocha-Sousa, L., Guastaldi, Antonio Carlos [UNESP]
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.
id UNSP_72a8cd3e027c53bb52971eac6ec9d362
oai_identifier_str oai:repositorio.unesp.br:11449/41487
network_acronym_str UNSP
network_name_str Repositório Institucional da UNESP
repository_id_str 2946
spelling 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