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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/95440
Ver los metadatos del registro completo
id |
CONICETDig_1e8c7cf7cc9671eed08fe5915b230b45 |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/95440 |
network_acronym_str |
CONICETDig |
repository_id_str |
3498 |
network_name_str |
CONICET Digital (CONICET) |
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 |
_version_ |
1846083330827616256 |
score |
13.22299 |