Cathodic behaviour of anodized titanium in simulated physiological conditions

Detalhes bibliográficos
Autor(a) principal: Peláez Abellán, E.
Data de Publicação: 2011
Outros Autores: Rocha-Sousa, L., Guastaldi, A. C. [UNESP]
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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spelling 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

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