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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/12392
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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 Técnicas2025-09-03T10:01:17Zoai: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:34982025-09-03 10:01:17.394CONICET 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) |
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CONICET Digital (CONICET) |
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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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1842269687732240384 |
score |
13.13397 |