2D nucleation and growth phenomena in UPD of Cd on Ag(111) and Ag(100)

Autores
Staikov, G.; Garcia, Silvana Graciela; Salinas, Daniel Ricardo
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Underpotential deposition (UPD) of Cd on Ag single crystal substrates has been studied by in situ scanning tunneling microscopy (STM) and electrochemical measurements. On Ag(111) the UPD process starts with formation of an expanded adlayer with a Ag(111) - (√3 x √19)R23.4° superlattice structure. In the UPD range 50 mV < ΔE < 80 mV this adlayer transforms by 2D nucleation and growth to a condensed Cd monolayer, which is unstable and at long polarization times undergoes changes involving surface alloy formation phenomena. In contrast to Ag(111), on Ag(100) a formation of a condensed monolayer by 2D nucleation and growth has been observed at relatively high underpotentials (130mV ≤ ΔE ≤ 180mV). The growth rate of 2D clusters extracted from the in situ STM images indicates a surface diffusion-controlled growth kinetics. At lower underpotentials the UPD of Cd on both substrates involves a significant surface alloy formation, which is reflected in the surface topography changes observed during the anodic stripping. ©The Electrochemical Society.
Fil: Staikov, G.. Research Centre Jülich; Alemania
Fil: Garcia, Silvana Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur; Argentina
Fil: Salinas, Daniel Ricardo. Universidad Nacional del Sur; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
2d Nucleation
Upd-Opd
Cd
Ag(100) - Ag(111)
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/61767
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/61767
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network_name_str CONICET Digital (CONICET)
spelling 2D nucleation and growth phenomena in UPD of Cd on Ag(111) and Ag(100)Staikov, G.Garcia, Silvana GracielaSalinas, Daniel Ricardo2d NucleationUpd-OpdCdAg(100) - Ag(111)https://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2Underpotential deposition (UPD) of Cd on Ag single crystal substrates has been studied by in situ scanning tunneling microscopy (STM) and electrochemical measurements. On Ag(111) the UPD process starts with formation of an expanded adlayer with a Ag(111) - (√3 x √19)R23.4° superlattice structure. In the UPD range 50 mV < ΔE < 80 mV this adlayer transforms by 2D nucleation and growth to a condensed Cd monolayer, which is unstable and at long polarization times undergoes changes involving surface alloy formation phenomena. In contrast to Ag(111), on Ag(100) a formation of a condensed monolayer by 2D nucleation and growth has been observed at relatively high underpotentials (130mV ≤ ΔE ≤ 180mV). The growth rate of 2D clusters extracted from the in situ STM images indicates a surface diffusion-controlled growth kinetics. At lower underpotentials the UPD of Cd on both substrates involves a significant surface alloy formation, which is reflected in the surface topography changes observed during the anodic stripping. ©The Electrochemical Society.Fil: Staikov, G.. Research Centre Jülich; AlemaniaFil: Garcia, Silvana Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur; ArgentinaFil: Salinas, Daniel Ricardo. Universidad Nacional del Sur; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaThe Electrochemical Society2010-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/61767Staikov, G.; Garcia, Silvana Graciela; Salinas, Daniel Ricardo; 2D nucleation and growth phenomena in UPD of Cd on Ag(111) and Ag(100); The Electrochemical Society; ECS Transactions; 25; 34; 3-2010; 3-131938-6737CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1149/1.3335487info:eu-repo/semantics/altIdentifier/url/http://ecst.ecsdl.org/content/25/34/3info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:08:06Zoai:ri.conicet.gov.ar:11336/61767instacron: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 10:08:06.802CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv 2D nucleation and growth phenomena in UPD of Cd on Ag(111) and Ag(100)
title 2D nucleation and growth phenomena in UPD of Cd on Ag(111) and Ag(100)
spellingShingle 2D nucleation and growth phenomena in UPD of Cd on Ag(111) and Ag(100)
Staikov, G.
2d Nucleation
Upd-Opd
Cd
Ag(100) - Ag(111)
title_short 2D nucleation and growth phenomena in UPD of Cd on Ag(111) and Ag(100)
title_full 2D nucleation and growth phenomena in UPD of Cd on Ag(111) and Ag(100)
title_fullStr 2D nucleation and growth phenomena in UPD of Cd on Ag(111) and Ag(100)
title_full_unstemmed 2D nucleation and growth phenomena in UPD of Cd on Ag(111) and Ag(100)
title_sort 2D nucleation and growth phenomena in UPD of Cd on Ag(111) and Ag(100)
dc.creator.none.fl_str_mv Staikov, G.
Garcia, Silvana Graciela
Salinas, Daniel Ricardo
author Staikov, G.
author_facet Staikov, G.
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 2d Nucleation
Upd-Opd
Cd
Ag(100) - Ag(111)
topic 2d Nucleation
Upd-Opd
Cd
Ag(100) - Ag(111)
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Underpotential deposition (UPD) of Cd on Ag single crystal substrates has been studied by in situ scanning tunneling microscopy (STM) and electrochemical measurements. On Ag(111) the UPD process starts with formation of an expanded adlayer with a Ag(111) - (√3 x √19)R23.4° superlattice structure. In the UPD range 50 mV < ΔE < 80 mV this adlayer transforms by 2D nucleation and growth to a condensed Cd monolayer, which is unstable and at long polarization times undergoes changes involving surface alloy formation phenomena. In contrast to Ag(111), on Ag(100) a formation of a condensed monolayer by 2D nucleation and growth has been observed at relatively high underpotentials (130mV ≤ ΔE ≤ 180mV). The growth rate of 2D clusters extracted from the in situ STM images indicates a surface diffusion-controlled growth kinetics. At lower underpotentials the UPD of Cd on both substrates involves a significant surface alloy formation, which is reflected in the surface topography changes observed during the anodic stripping. ©The Electrochemical Society.
Fil: Staikov, G.. Research Centre Jülich; Alemania
Fil: Garcia, Silvana Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur; Argentina
Fil: Salinas, Daniel Ricardo. Universidad Nacional del Sur; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Underpotential deposition (UPD) of Cd on Ag single crystal substrates has been studied by in situ scanning tunneling microscopy (STM) and electrochemical measurements. On Ag(111) the UPD process starts with formation of an expanded adlayer with a Ag(111) - (√3 x √19)R23.4° superlattice structure. In the UPD range 50 mV < ΔE < 80 mV this adlayer transforms by 2D nucleation and growth to a condensed Cd monolayer, which is unstable and at long polarization times undergoes changes involving surface alloy formation phenomena. In contrast to Ag(111), on Ag(100) a formation of a condensed monolayer by 2D nucleation and growth has been observed at relatively high underpotentials (130mV ≤ ΔE ≤ 180mV). The growth rate of 2D clusters extracted from the in situ STM images indicates a surface diffusion-controlled growth kinetics. At lower underpotentials the UPD of Cd on both substrates involves a significant surface alloy formation, which is reflected in the surface topography changes observed during the anodic stripping. ©The Electrochemical Society.
publishDate 2010
dc.date.none.fl_str_mv 2010-03
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/11336/61767
Staikov, G.; Garcia, Silvana Graciela; Salinas, Daniel Ricardo; 2D nucleation and growth phenomena in UPD of Cd on Ag(111) and Ag(100); The Electrochemical Society; ECS Transactions; 25; 34; 3-2010; 3-13
1938-6737
CONICET Digital
CONICET
url http://hdl.handle.net/11336/61767
identifier_str_mv Staikov, G.; Garcia, Silvana Graciela; Salinas, Daniel Ricardo; 2D nucleation and growth phenomena in UPD of Cd on Ag(111) and Ag(100); The Electrochemical Society; ECS Transactions; 25; 34; 3-2010; 3-13
1938-6737
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1149/1.3335487
info:eu-repo/semantics/altIdentifier/url/http://ecst.ecsdl.org/content/25/34/3
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
application/pdf
dc.publisher.none.fl_str_mv The Electrochemical Society
publisher.none.fl_str_mv The Electrochemical Society
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 13.13397

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