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://hdl.handle.net/11449/232135 |
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 (noncoated 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 voltammogramsan 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 previouscathodic processes: the hydrogen formation and the cathodic transformation of titanium oxides before the oxygen reduction potential region. |
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Repositório Institucional da UNESP |
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Cathodic behaviour of anodized titanium in simulated physiological conditionsAnodized titaniumCathodic behaviourCyclic voltammetryTitanium 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 (noncoated 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 voltammogramsan 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 previouscathodic processes: the hydrogen formation and the cathodic transformation of titanium oxides before the oxygen reduction potential region.Fac. de Química Univ. de La Habana, Zapata esq. a G, Plaza, C. de La Habana, CP 10600Dto. de Ciěncias Fundamentais e Sociais CCA/UFPB, CEP 58397-000, Areia, PBInstituto de Química UNESP-Araraquara, R. Prof. Francisco Degni s/n, 14800-900, Araraquara, SPInstituto de Química UNESP-Araraquara, R. Prof. Francisco Degni s/n, 14800-900, Araraquara, SPUniv. de La HabanaUniversidade Federal da Paraíba (UFPB)Universidade Estadual Paulista (UNESP)Peláez Abellán, E.Rocha-Sousa, L.Guastaldi, A. C. [UNESP]2022-04-29T08:49:17Z2022-04-29T08:49:17Z2011-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article199-203Latin American Applied Research, v. 41, n. 3, p. 199-203, 2011.0327-0793http://hdl.handle.net/11449/2321352-s2.0-84884585195Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengLatin American Applied Researchinfo:eu-repo/semantics/openAccess2022-04-29T08:49:17Zoai:repositorio.unesp.br:11449/232135Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:06:23.613551Repositório 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 Peláez Abellán, E. Anodized titanium Cathodic behaviour Cyclic voltammetry 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 |
Peláez Abellán, E. |
author_facet |
Peláez Abellán, E. Rocha-Sousa, L. Guastaldi, A. C. [UNESP] |
author_role |
author |
author2 |
Rocha-Sousa, L. Guastaldi, A. C. [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Univ. de La Habana Universidade Federal da Paraíba (UFPB) Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Peláez Abellán, E. Rocha-Sousa, L. Guastaldi, A. C. [UNESP] |
dc.subject.por.fl_str_mv |
Anodized titanium Cathodic behaviour Cyclic voltammetry Titanium oxide |
topic |
Anodized titanium Cathodic behaviour Cyclic voltammetry 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 (noncoated 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 voltammogramsan 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 previouscathodic 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 |
2011-12-01 2022-04-29T08:49:17Z 2022-04-29T08:49:17Z |
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 |
Latin American Applied Research, v. 41, n. 3, p. 199-203, 2011. 0327-0793 http://hdl.handle.net/11449/232135 2-s2.0-84884585195 |
identifier_str_mv |
Latin American Applied Research, v. 41, n. 3, p. 199-203, 2011. 0327-0793 2-s2.0-84884585195 |
url |
http://hdl.handle.net/11449/232135 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Latin American Applied Research |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
199-203 |
dc.source.none.fl_str_mv |
Scopus 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_ |
1808128895601344512 |