In-situ spectroelectrochemistry (UV-visible and infrared) of anodic films on iron in neutral phosphate solutions

Autores
Borrás, C. A.; Romagnoli, Roberto; Lezna, Reynaldo Oscar
Año de publicación
2000
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The composition of anodic films on iron formed at different potentials in neutral solutions has been investigated by in-situ UV-vis and IR spectroscopies in the presence of PO43-, a non-contaminant inhibitor used in anticorrosive paints. Optical and electrochemical determinations were used to detect and characterize two well-defined current waves in the active region of Fe and a following passive zone at more positive potentials. The response has been associated with the presence on the surface, in the dissolution zone, of Fe3II[PO4]2 as the main species and probably some [FeIIIPO4]. [FeIIIPO4] has been detected in the passive region by in-situ IR spectroscopy. Only minor amounts of Fe2+ and FE3+ species in solution have been detected optically. These phosphated overlayers are believed to provide extra protective properties to the passivating film.
Fil: Borrás, C. A.. Instituto de Materiales y Reactivos para la Electrónica; Cuba
Fil: Romagnoli, Roberto. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Tecnología de Pinturas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones en Tecnología de Pinturas; Argentina
Fil: Lezna, Reynaldo Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Materia
IRON CORROSION
PASSIVATION
COATINGS
IN-SITU SPECTROSCOPY
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/95440

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spelling In-situ spectroelectrochemistry (UV-visible and infrared) of anodic films on iron in neutral phosphate solutionsBorrás, C. A.Romagnoli, RobertoLezna, Reynaldo OscarIRON CORROSIONPASSIVATIONCOATINGSIN-SITU SPECTROSCOPYhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The composition of anodic films on iron formed at different potentials in neutral solutions has been investigated by in-situ UV-vis and IR spectroscopies in the presence of PO43-, a non-contaminant inhibitor used in anticorrosive paints. Optical and electrochemical determinations were used to detect and characterize two well-defined current waves in the active region of Fe and a following passive zone at more positive potentials. The response has been associated with the presence on the surface, in the dissolution zone, of Fe3II[PO4]2 as the main species and probably some [FeIIIPO4]. [FeIIIPO4] has been detected in the passive region by in-situ IR spectroscopy. Only minor amounts of Fe2+ and FE3+ species in solution have been detected optically. These phosphated overlayers are believed to provide extra protective properties to the passivating film.Fil: Borrás, C. A.. Instituto de Materiales y Reactivos para la Electrónica; CubaFil: Romagnoli, Roberto. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Tecnología de Pinturas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones en Tecnología de Pinturas; ArgentinaFil: Lezna, Reynaldo Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaPergamon-Elsevier Science Ltd2000-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/mswordapplication/pdfhttp://hdl.handle.net/11336/95440Borrás, C. A.; Romagnoli, Roberto; Lezna, Reynaldo Oscar; In-situ spectroelectrochemistry (UV-visible and infrared) of anodic films on iron in neutral phosphate solutions; Pergamon-Elsevier Science Ltd; Electrochimica Acta; 45; 11; 2-2000; 1717-17250013-4686CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S001346869900393Xinfo:eu-repo/semantics/altIdentifier/doi/10.1016/S0013-4686(99)00393-Xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:18:11Zoai:ri.conicet.gov.ar:11336/95440instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 15:18:11.837CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv In-situ spectroelectrochemistry (UV-visible and infrared) of anodic films on iron in neutral phosphate solutions
title In-situ spectroelectrochemistry (UV-visible and infrared) of anodic films on iron in neutral phosphate solutions
spellingShingle In-situ spectroelectrochemistry (UV-visible and infrared) of anodic films on iron in neutral phosphate solutions
Borrás, C. A.
IRON CORROSION
PASSIVATION
COATINGS
IN-SITU SPECTROSCOPY
title_short In-situ spectroelectrochemistry (UV-visible and infrared) of anodic films on iron in neutral phosphate solutions
title_full In-situ spectroelectrochemistry (UV-visible and infrared) of anodic films on iron in neutral phosphate solutions
title_fullStr In-situ spectroelectrochemistry (UV-visible and infrared) of anodic films on iron in neutral phosphate solutions
title_full_unstemmed In-situ spectroelectrochemistry (UV-visible and infrared) of anodic films on iron in neutral phosphate solutions
title_sort In-situ spectroelectrochemistry (UV-visible and infrared) of anodic films on iron in neutral phosphate solutions
dc.creator.none.fl_str_mv Borrás, C. A.
Romagnoli, Roberto
Lezna, Reynaldo Oscar
author Borrás, C. A.
author_facet Borrás, C. A.
Romagnoli, Roberto
Lezna, Reynaldo Oscar
author_role author
author2 Romagnoli, Roberto
Lezna, Reynaldo Oscar
author2_role author
author
dc.subject.none.fl_str_mv IRON CORROSION
PASSIVATION
COATINGS
IN-SITU SPECTROSCOPY
topic IRON CORROSION
PASSIVATION
COATINGS
IN-SITU SPECTROSCOPY
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The composition of anodic films on iron formed at different potentials in neutral solutions has been investigated by in-situ UV-vis and IR spectroscopies in the presence of PO43-, a non-contaminant inhibitor used in anticorrosive paints. Optical and electrochemical determinations were used to detect and characterize two well-defined current waves in the active region of Fe and a following passive zone at more positive potentials. The response has been associated with the presence on the surface, in the dissolution zone, of Fe3II[PO4]2 as the main species and probably some [FeIIIPO4]. [FeIIIPO4] has been detected in the passive region by in-situ IR spectroscopy. Only minor amounts of Fe2+ and FE3+ species in solution have been detected optically. These phosphated overlayers are believed to provide extra protective properties to the passivating film.
Fil: Borrás, C. A.. Instituto de Materiales y Reactivos para la Electrónica; Cuba
Fil: Romagnoli, Roberto. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Tecnología de Pinturas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones en Tecnología de Pinturas; Argentina
Fil: Lezna, Reynaldo Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
description The composition of anodic films on iron formed at different potentials in neutral solutions has been investigated by in-situ UV-vis and IR spectroscopies in the presence of PO43-, a non-contaminant inhibitor used in anticorrosive paints. Optical and electrochemical determinations were used to detect and characterize two well-defined current waves in the active region of Fe and a following passive zone at more positive potentials. The response has been associated with the presence on the surface, in the dissolution zone, of Fe3II[PO4]2 as the main species and probably some [FeIIIPO4]. [FeIIIPO4] has been detected in the passive region by in-situ IR spectroscopy. Only minor amounts of Fe2+ and FE3+ species in solution have been detected optically. These phosphated overlayers are believed to provide extra protective properties to the passivating film.
publishDate 2000
dc.date.none.fl_str_mv 2000-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/95440
Borrás, C. A.; Romagnoli, Roberto; Lezna, Reynaldo Oscar; In-situ spectroelectrochemistry (UV-visible and infrared) of anodic films on iron in neutral phosphate solutions; Pergamon-Elsevier Science Ltd; Electrochimica Acta; 45; 11; 2-2000; 1717-1725
0013-4686
CONICET Digital
CONICET
url http://hdl.handle.net/11336/95440
identifier_str_mv Borrás, C. A.; Romagnoli, Roberto; Lezna, Reynaldo Oscar; In-situ spectroelectrochemistry (UV-visible and infrared) of anodic films on iron in neutral phosphate solutions; Pergamon-Elsevier Science Ltd; Electrochimica Acta; 45; 11; 2-2000; 1717-1725
0013-4686
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S001346869900393X
info:eu-repo/semantics/altIdentifier/doi/10.1016/S0013-4686(99)00393-X
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/msword
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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