Cuprous oxide layers grown on copper: effect of CO adsorption

Autores
Gassa, Liliana Mabel; Castro Luna Berenguer, Ana María del Carmen; Torres Sánchez, Rosa María; Zerbino, Jorge Omar
Año de publicación
2004
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The semiconducting properties of anodic passive films formed on polycrystalline copper in aqueous borax solutions, pH 9.2, are studied using electrochemical impedance spectroscopy (EIS) and voltammetry. The semiconducting nature of the cuprous passive layer is analysed in the potential region near de rest potential as a function of the electrode potential and the presence of CO dissolved in the electrolyte. The oxide formation is explained as a sequence of Cu2O growth, cation adsorption, Cu(II), and dissolution steps similarly to previous reported investigations for the metal in CO free solutions. The different growth conditions change the defect or excess of cations accumulated in the outer side of the cuprous layer/electrolyte interface leading to different semiconducting properties.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Centro de Tecnología de Recursos Minerales y Cerámica
Materia
Química
Copper oxide
Carbon monoxide
EIS
Isoelectric point
Semiconducting properties
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/128206
Acceder
id SEDICI_f3ea7efe1061599519d889338d9f75f3
oai_identifier_str oai:sedici.unlp.edu.ar:10915/128206
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Cuprous oxide layers grown on copper: effect of CO adsorptionGassa, Liliana MabelCastro Luna Berenguer, Ana María del CarmenTorres Sánchez, Rosa MaríaZerbino, Jorge OmarQuímicaCopper oxideCarbon monoxideEISIsoelectric pointSemiconducting propertiesThe semiconducting properties of anodic passive films formed on polycrystalline copper in aqueous borax solutions, pH 9.2, are studied using electrochemical impedance spectroscopy (EIS) and voltammetry. The semiconducting nature of the cuprous passive layer is analysed in the potential region near de rest potential as a function of the electrode potential and the presence of CO dissolved in the electrolyte. The oxide formation is explained as a sequence of Cu2O growth, cation adsorption, Cu(II), and dissolution steps similarly to previous reported investigations for the metal in CO free solutions. The different growth conditions change the defect or excess of cations accumulated in the outer side of the cuprous layer/electrolyte interface leading to different semiconducting properties.Instituto de Investigaciones Fisicoquímicas Teóricas y AplicadasCentro de Tecnología de Recursos Minerales y Cerámica2004info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf81-91http://sedici.unlp.edu.ar/handle/10915/128206enginfo:eu-repo/semantics/altIdentifier/issn/1647-1571info:eu-repo/semantics/altIdentifier/doi/10.4152/pea.200402081info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:31:02Zoai:sedici.unlp.edu.ar:10915/128206Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:31:03.097SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Cuprous oxide layers grown on copper: effect of CO adsorption
title Cuprous oxide layers grown on copper: effect of CO adsorption
spellingShingle Cuprous oxide layers grown on copper: effect of CO adsorption
Gassa, Liliana Mabel
Química
Copper oxide
Carbon monoxide
EIS
Isoelectric point
Semiconducting properties
title_short Cuprous oxide layers grown on copper: effect of CO adsorption
title_full Cuprous oxide layers grown on copper: effect of CO adsorption
title_fullStr Cuprous oxide layers grown on copper: effect of CO adsorption
title_full_unstemmed Cuprous oxide layers grown on copper: effect of CO adsorption
title_sort Cuprous oxide layers grown on copper: effect of CO adsorption
dc.creator.none.fl_str_mv Gassa, Liliana Mabel
Castro Luna Berenguer, Ana María del Carmen
Torres Sánchez, Rosa María
Zerbino, Jorge Omar
author Gassa, Liliana Mabel
author_facet Gassa, Liliana Mabel
Castro Luna Berenguer, Ana María del Carmen
Torres Sánchez, Rosa María
Zerbino, Jorge Omar
author_role author
author2 Castro Luna Berenguer, Ana María del Carmen
Torres Sánchez, Rosa María
Zerbino, Jorge Omar
author2_role author
author
author
dc.subject.none.fl_str_mv Química
Copper oxide
Carbon monoxide
EIS
Isoelectric point
Semiconducting properties
topic Química
Copper oxide
Carbon monoxide
EIS
Isoelectric point
Semiconducting properties
dc.description.none.fl_txt_mv The semiconducting properties of anodic passive films formed on polycrystalline copper in aqueous borax solutions, pH 9.2, are studied using electrochemical impedance spectroscopy (EIS) and voltammetry. The semiconducting nature of the cuprous passive layer is analysed in the potential region near de rest potential as a function of the electrode potential and the presence of CO dissolved in the electrolyte. The oxide formation is explained as a sequence of Cu2O growth, cation adsorption, Cu(II), and dissolution steps similarly to previous reported investigations for the metal in CO free solutions. The different growth conditions change the defect or excess of cations accumulated in the outer side of the cuprous layer/electrolyte interface leading to different semiconducting properties.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Centro de Tecnología de Recursos Minerales y Cerámica
description The semiconducting properties of anodic passive films formed on polycrystalline copper in aqueous borax solutions, pH 9.2, are studied using electrochemical impedance spectroscopy (EIS) and voltammetry. The semiconducting nature of the cuprous passive layer is analysed in the potential region near de rest potential as a function of the electrode potential and the presence of CO dissolved in the electrolyte. The oxide formation is explained as a sequence of Cu2O growth, cation adsorption, Cu(II), and dissolution steps similarly to previous reported investigations for the metal in CO free solutions. The different growth conditions change the defect or excess of cations accumulated in the outer side of the cuprous layer/electrolyte interface leading to different semiconducting properties.
publishDate 2004
dc.date.none.fl_str_mv 2004
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/128206
url http://sedici.unlp.edu.ar/handle/10915/128206
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1647-1571
info:eu-repo/semantics/altIdentifier/doi/10.4152/pea.200402081
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
81-91
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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