New insights into the Sn underpotential deposition on Au(100)

The underpotential deposition (UPD) of Sn in the system Au(100)/Sn2+, SO42− has been studied by classical electrochemical techniques and in situ scanning tunneling microscopy. The results show that the Sn UPD initiates at relatively high potentials with the formation of a quasi‐hexagonal structure c...

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Detalles Bibliográficos
Autores: Meier, Lorena Alejandra, Garcia, Silvana Graciela, Salinas, Daniel Ricardo
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2012
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/66211
Acceso en línea:http://hdl.handle.net/11336/66211
Access Level:acceso abierto
Palabra clave:Sn
Upd
Au(100)
Stm
https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
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repository_id_str
spelling New insights into the Sn underpotential deposition on Au(100)Meier, Lorena AlejandraGarcia, Silvana GracielaSalinas, Daniel RicardoSnUpdAu(100)Stmhttps://purl.org/becyt/ford/2.10https://purl.org/becyt/ford/2The underpotential deposition (UPD) of Sn in the system Au(100)/Sn2+, SO42− has been studied by classical electrochemical techniques and in situ scanning tunneling microscopy. The results show that the Sn UPD initiates at relatively high potentials with the formation of a quasi‐hexagonal structure characterized as Au(100) − (√2 × 7)R45°. This expanded overlayer contributes to the modification of the surface morphology which exhibits flat terraces with step edges showing angles of 60 or 120°. At lower potentials two‐dimensional (2D) islands are formed which tend to grow, causing a coverage increase. In the underpotential region close to the formation of the 3D bulk phase the long time polarization experiments indicate the formation of different Au–Sn alloy phases.Fil: Meier, Lorena Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química; ArgentinaFil: Garcia, Silvana Graciela. Universidad Nacional del Sur. Departamento de Ingeniería Química; ArgentinaFil: Salinas, Daniel Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química; ArgentinaJohn Wiley & Sons Ltd2012-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/66211Meier, Lorena Alejandra; Garcia, Silvana Graciela; Salinas, Daniel Ricardo; New insights into the Sn underpotential deposition on Au(100); John Wiley & Sons Ltd; Surface and Interface Analysis; 44; 1; 1-2012; 37-400142-2421CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/sia.3766info:eu-repo/semantics/altIdentifier/doi/10.1002/sia.3766info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T14:14:24Zoai:ri.conicet.gov.ar:11336/66211instacron: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:34982024-05-08 14:14:24.381CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv New insights into the Sn underpotential deposition on Au(100)
title New insights into the Sn underpotential deposition on Au(100)
spellingShingle New insights into the Sn underpotential deposition on Au(100)
Meier, Lorena Alejandra
Sn
Upd
Au(100)
Stm
https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
title_short New insights into the Sn underpotential deposition on Au(100)
title_full New insights into the Sn underpotential deposition on Au(100)
title_fullStr New insights into the Sn underpotential deposition on Au(100)
title_full_unstemmed New insights into the Sn underpotential deposition on Au(100)
title_sort New insights into the Sn underpotential deposition on Au(100)
dc.creator.none.fl_str_mv Meier, Lorena Alejandra
Garcia, Silvana Graciela
Salinas, Daniel Ricardo
author Meier, Lorena Alejandra
author_facet Meier, Lorena Alejandra
Garcia, Silvana Graciela
Salinas, Daniel Ricardo
author_role author
author2 Garcia, Silvana Graciela
Salinas, Daniel Ricardo
author2_role author
author
dc.subject.none.fl_str_mv Sn
Upd
Au(100)
Stm
https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
topic Sn
Upd
Au(100)
Stm
https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
description The underpotential deposition (UPD) of Sn in the system Au(100)/Sn2+, SO42− has been studied by classical electrochemical techniques and in situ scanning tunneling microscopy. The results show that the Sn UPD initiates at relatively high potentials with the formation of a quasi‐hexagonal structure characterized as Au(100) − (√2 × 7)R45°. This expanded overlayer contributes to the modification of the surface morphology which exhibits flat terraces with step edges showing angles of 60 or 120°. At lower potentials two‐dimensional (2D) islands are formed which tend to grow, causing a coverage increase. In the underpotential region close to the formation of the 3D bulk phase the long time polarization experiments indicate the formation of different Au–Sn alloy phases.
publishDate 2012
dc.date.none.fl_str_mv 2012-01
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/11336/66211
Meier, Lorena Alejandra; Garcia, Silvana Graciela; Salinas, Daniel Ricardo; New insights into the Sn underpotential deposition on Au(100); John Wiley & Sons Ltd; Surface and Interface Analysis; 44; 1; 1-2012; 37-40
0142-2421
CONICET Digital
CONICET
url http://hdl.handle.net/11336/66211
identifier_str_mv Meier, Lorena Alejandra; Garcia, Silvana Graciela; Salinas, Daniel Ricardo; New insights into the Sn underpotential deposition on Au(100); John Wiley & Sons Ltd; Surface and Interface Analysis; 44; 1; 1-2012; 37-40
0142-2421
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://onlinelibrary.wiley.com/doi/abs/10.1002/sia.3766
info:eu-repo/semantics/altIdentifier/doi/10.1002/sia.3766
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/pdf
dc.publisher.none.fl_str_mv John Wiley & Sons Ltd
publisher.none.fl_str_mv John Wiley & Sons Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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 15.81155

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