Electrochemical and in-situ stm study of the surface alloy formation in the system Au(100)/Cd

Autores
del Barrio, Maria Cecilia; Salinas, Daniel Ricardo; García, S. G.
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Cd UPD process in the system Au(100)/Cd2+, SO4 2− and the involved Au-Cd surface alloy formation have been investigated, using conventional electrochemical techniques and in-situ STM analysis. The voltammetric experiences have shown three adsorption/desorption steps in the extended UPD range 0 ≤ E/mV ≤ 800. The obtained desorption spectra indicate the formation of a surface alloy at low underpotentials and long polarization times. STM images have shown that the Cd deposition becomes evident at low underpotentials, with the nucleation of two-dimensional islands of monatomic height, which grow and coalesce up to a complete monolayer. At lower underpotentials, new islands nucleate on the monolayer previously formed, and grow acquiring a quadratic structure. The subsequent stripping of this film promotes morphological changes that are related to the dissolution of a Cd-Au surface alloy, which is consistent with the electrochemical experiences.
Fil: del Barrio, Maria Cecilia. Universidad Nacional del Sur. Departamento de Ingenieria Quimica. Instituto Ing.electroquimica y Corrosion; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Salinas, Daniel Ricardo. Universidad Nacional del Sur. Departamento de Ingenieria Quimica. Instituto Ing.electroquimica y Corrosion; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: García, S. G.. Universidad Nacional del Sur. Departamento de Ingenieria Quimica. Instituto Ing.electroquimica y Corrosion; Argentina
Materia
Alloy Formation
Cd Upd
Au(100)
In Situ Stm
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/12392
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Electrochemical and in-situ stm study of the surface alloy formation in the system Au(100)/Cddel Barrio, Maria CeciliaSalinas, Daniel RicardoGarcía, S. G.Alloy FormationCd UpdAu(100)In Situ Stmhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2https://purl.org/becyt/ford/2.10https://purl.org/becyt/ford/2The Cd UPD process in the system Au(100)/Cd2+, SO4 2− and the involved Au-Cd surface alloy formation have been investigated, using conventional electrochemical techniques and in-situ STM analysis. The voltammetric experiences have shown three adsorption/desorption steps in the extended UPD range 0 ≤ E/mV ≤ 800. The obtained desorption spectra indicate the formation of a surface alloy at low underpotentials and long polarization times. STM images have shown that the Cd deposition becomes evident at low underpotentials, with the nucleation of two-dimensional islands of monatomic height, which grow and coalesce up to a complete monolayer. At lower underpotentials, new islands nucleate on the monolayer previously formed, and grow acquiring a quadratic structure. The subsequent stripping of this film promotes morphological changes that are related to the dissolution of a Cd-Au surface alloy, which is consistent with the electrochemical experiences.Fil: del Barrio, Maria Cecilia. Universidad Nacional del Sur. Departamento de Ingenieria Quimica. Instituto Ing.electroquimica y Corrosion; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Salinas, Daniel Ricardo. Universidad Nacional del Sur. Departamento de Ingenieria Quimica. Instituto Ing.electroquimica y Corrosion; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: García, S. G.. Universidad Nacional del Sur. Departamento de Ingenieria Quimica. Instituto Ing.electroquimica y Corrosion; ArgentinaElsevier2014-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/12392del Barrio, Maria Cecilia; Salinas, Daniel Ricardo; García, S. G.; Electrochemical and in-situ stm study of the surface alloy formation in the system Au(100)/Cd; Elsevier; Electrochimica Acta; 130; 6-2014; 164-1690013-4686enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0013468614004745info:eu-repo/semantics/altIdentifier/hdl/http://dx.doi.org/10.1016/j.electacta.2014.02.143info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:14:35Zoai:ri.conicet.gov.ar:11336/12392instacron: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:34982025-09-29 10:14:35.761CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Electrochemical and in-situ stm study of the surface alloy formation in the system Au(100)/Cd
title Electrochemical and in-situ stm study of the surface alloy formation in the system Au(100)/Cd
spellingShingle Electrochemical and in-situ stm study of the surface alloy formation in the system Au(100)/Cd
del Barrio, Maria Cecilia
Alloy Formation
Cd Upd
Au(100)
In Situ Stm
title_short Electrochemical and in-situ stm study of the surface alloy formation in the system Au(100)/Cd
title_full Electrochemical and in-situ stm study of the surface alloy formation in the system Au(100)/Cd
title_fullStr Electrochemical and in-situ stm study of the surface alloy formation in the system Au(100)/Cd
title_full_unstemmed Electrochemical and in-situ stm study of the surface alloy formation in the system Au(100)/Cd
title_sort Electrochemical and in-situ stm study of the surface alloy formation in the system Au(100)/Cd
dc.creator.none.fl_str_mv del Barrio, Maria Cecilia
Salinas, Daniel Ricardo
García, S. G.
author del Barrio, Maria Cecilia
author_facet del Barrio, Maria Cecilia
Salinas, Daniel Ricardo
García, S. G.
author_role author
author2 Salinas, Daniel Ricardo
García, S. G.
author2_role author
author
dc.subject.none.fl_str_mv Alloy Formation
Cd Upd
Au(100)
In Situ Stm
topic Alloy Formation
Cd Upd
Au(100)
In Situ Stm
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The Cd UPD process in the system Au(100)/Cd2+, SO4 2− and the involved Au-Cd surface alloy formation have been investigated, using conventional electrochemical techniques and in-situ STM analysis. The voltammetric experiences have shown three adsorption/desorption steps in the extended UPD range 0 ≤ E/mV ≤ 800. The obtained desorption spectra indicate the formation of a surface alloy at low underpotentials and long polarization times. STM images have shown that the Cd deposition becomes evident at low underpotentials, with the nucleation of two-dimensional islands of monatomic height, which grow and coalesce up to a complete monolayer. At lower underpotentials, new islands nucleate on the monolayer previously formed, and grow acquiring a quadratic structure. The subsequent stripping of this film promotes morphological changes that are related to the dissolution of a Cd-Au surface alloy, which is consistent with the electrochemical experiences.
Fil: del Barrio, Maria Cecilia. Universidad Nacional del Sur. Departamento de Ingenieria Quimica. Instituto Ing.electroquimica y Corrosion; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Salinas, Daniel Ricardo. Universidad Nacional del Sur. Departamento de Ingenieria Quimica. Instituto Ing.electroquimica y Corrosion; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: García, S. G.. Universidad Nacional del Sur. Departamento de Ingenieria Quimica. Instituto Ing.electroquimica y Corrosion; Argentina
description The Cd UPD process in the system Au(100)/Cd2+, SO4 2− and the involved Au-Cd surface alloy formation have been investigated, using conventional electrochemical techniques and in-situ STM analysis. The voltammetric experiences have shown three adsorption/desorption steps in the extended UPD range 0 ≤ E/mV ≤ 800. The obtained desorption spectra indicate the formation of a surface alloy at low underpotentials and long polarization times. STM images have shown that the Cd deposition becomes evident at low underpotentials, with the nucleation of two-dimensional islands of monatomic height, which grow and coalesce up to a complete monolayer. At lower underpotentials, new islands nucleate on the monolayer previously formed, and grow acquiring a quadratic structure. The subsequent stripping of this film promotes morphological changes that are related to the dissolution of a Cd-Au surface alloy, which is consistent with the electrochemical experiences.
publishDate 2014
dc.date.none.fl_str_mv 2014-06
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/11336/12392
del Barrio, Maria Cecilia; Salinas, Daniel Ricardo; García, S. G.; Electrochemical and in-situ stm study of the surface alloy formation in the system Au(100)/Cd; Elsevier; Electrochimica Acta; 130; 6-2014; 164-169
0013-4686
url http://hdl.handle.net/11336/12392
identifier_str_mv del Barrio, Maria Cecilia; Salinas, Daniel Ricardo; García, S. G.; Electrochemical and in-situ stm study of the surface alloy formation in the system Au(100)/Cd; Elsevier; Electrochimica Acta; 130; 6-2014; 164-169
0013-4686
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0013468614004745
info:eu-repo/semantics/altIdentifier/hdl/http://dx.doi.org/10.1016/j.electacta.2014.02.143
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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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score 13.070432

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