Electrochemical synthesis of Cd–Ag bimetallic particles and the involved alloy formation

Autores
Ambrusi, Rubén Eduardo; Staikov, G.; Garcia, Silvana Graciela
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The formation of bimetallic Cd–Ag nanoparticles on vitreous carbon (VC) and the involved alloy formation have been studied by conventional electrochemical techniques and ex-situ atomic force microscopy (AFM). Both metals were deposited by sequential electrodeposition using single potentiostatic pulses. The AFM images of Ag deposits showed small differently sized Ag nanocrystallites uniformly distributed over the VC-substrate. This modified substrate was immersed in an electrolyte solution containing Cd2+ ions and bimetallic Cd–Ag particles were prepared by underpotential deposition (UPD) of Cd. The alloy formation phenomena observed previously during Cd UPD on massive Ag electrodes were found also in the case of Cd UPD on Ag nanoparticles. The desorption spectra in the system Cd/Ag (nanoparticles)/VC employing different polarization times, showed three desorption peaks associated with the dissolution of the Cd OPD and UPD deposits and an Ag–Cd alloy formed at low underpotentials, respectively. The electrochemical behavior of the bimetallic system was also studied applying other polarization routine designed for this purpose.
Fil: Ambrusi, Rubén Eduardo. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Staikov, G.. Peter Grünberg Institut. Forschungszentrum Jülich; Alemania
Fil: Garcia, Silvana Graciela. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina
Materia
Alloy Formation
Cd Upd
Cd-Ag Nanoparticles
Vitreous Carbon
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:11336/21687
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/21687
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Electrochemical synthesis of Cd–Ag bimetallic particles and the involved alloy formationAmbrusi, Rubén EduardoStaikov, G.Garcia, Silvana GracielaAlloy FormationCd UpdCd-Ag NanoparticlesVitreous Carbonhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The formation of bimetallic Cd–Ag nanoparticles on vitreous carbon (VC) and the involved alloy formation have been studied by conventional electrochemical techniques and ex-situ atomic force microscopy (AFM). Both metals were deposited by sequential electrodeposition using single potentiostatic pulses. The AFM images of Ag deposits showed small differently sized Ag nanocrystallites uniformly distributed over the VC-substrate. This modified substrate was immersed in an electrolyte solution containing Cd2+ ions and bimetallic Cd–Ag particles were prepared by underpotential deposition (UPD) of Cd. The alloy formation phenomena observed previously during Cd UPD on massive Ag electrodes were found also in the case of Cd UPD on Ag nanoparticles. The desorption spectra in the system Cd/Ag (nanoparticles)/VC employing different polarization times, showed three desorption peaks associated with the dissolution of the Cd OPD and UPD deposits and an Ag–Cd alloy formed at low underpotentials, respectively. The electrochemical behavior of the bimetallic system was also studied applying other polarization routine designed for this purpose.Fil: Ambrusi, Rubén Eduardo. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Staikov, G.. Peter Grünberg Institut. Forschungszentrum Jülich; AlemaniaFil: Garcia, Silvana Graciela. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; ArgentinaElsevier2014-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/21687Ambrusi, Rubén Eduardo; Staikov, G.; Garcia, Silvana Graciela; Electrochemical synthesis of Cd–Ag bimetallic particles and the involved alloy formation; Elsevier; Journal of Electroanalytical Chemistry; 728; 8-2014; 130-1331572-6657CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1572665714002562info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jelechem.2014.06.022info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:09:53Zoai:ri.conicet.gov.ar:11336/21687instacron: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 10:09:53.558CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Electrochemical synthesis of Cd–Ag bimetallic particles and the involved alloy formation
title Electrochemical synthesis of Cd–Ag bimetallic particles and the involved alloy formation
spellingShingle Electrochemical synthesis of Cd–Ag bimetallic particles and the involved alloy formation
Ambrusi, Rubén Eduardo
Alloy Formation
Cd Upd
Cd-Ag Nanoparticles
Vitreous Carbon
title_short Electrochemical synthesis of Cd–Ag bimetallic particles and the involved alloy formation
title_full Electrochemical synthesis of Cd–Ag bimetallic particles and the involved alloy formation
title_fullStr Electrochemical synthesis of Cd–Ag bimetallic particles and the involved alloy formation
title_full_unstemmed Electrochemical synthesis of Cd–Ag bimetallic particles and the involved alloy formation
title_sort Electrochemical synthesis of Cd–Ag bimetallic particles and the involved alloy formation
dc.creator.none.fl_str_mv Ambrusi, Rubén Eduardo
Staikov, G.
Garcia, Silvana Graciela
author Ambrusi, Rubén Eduardo
author_facet Ambrusi, Rubén Eduardo
Staikov, G.
Garcia, Silvana Graciela
author_role author
author2 Staikov, G.
Garcia, Silvana Graciela
author2_role author
author
dc.subject.none.fl_str_mv Alloy Formation
Cd Upd
Cd-Ag Nanoparticles
Vitreous Carbon
topic Alloy Formation
Cd Upd
Cd-Ag Nanoparticles
Vitreous Carbon
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The formation of bimetallic Cd–Ag nanoparticles on vitreous carbon (VC) and the involved alloy formation have been studied by conventional electrochemical techniques and ex-situ atomic force microscopy (AFM). Both metals were deposited by sequential electrodeposition using single potentiostatic pulses. The AFM images of Ag deposits showed small differently sized Ag nanocrystallites uniformly distributed over the VC-substrate. This modified substrate was immersed in an electrolyte solution containing Cd2+ ions and bimetallic Cd–Ag particles were prepared by underpotential deposition (UPD) of Cd. The alloy formation phenomena observed previously during Cd UPD on massive Ag electrodes were found also in the case of Cd UPD on Ag nanoparticles. The desorption spectra in the system Cd/Ag (nanoparticles)/VC employing different polarization times, showed three desorption peaks associated with the dissolution of the Cd OPD and UPD deposits and an Ag–Cd alloy formed at low underpotentials, respectively. The electrochemical behavior of the bimetallic system was also studied applying other polarization routine designed for this purpose.
Fil: Ambrusi, Rubén Eduardo. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Staikov, G.. Peter Grünberg Institut. Forschungszentrum Jülich; Alemania
Fil: Garcia, Silvana Graciela. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina
description The formation of bimetallic Cd–Ag nanoparticles on vitreous carbon (VC) and the involved alloy formation have been studied by conventional electrochemical techniques and ex-situ atomic force microscopy (AFM). Both metals were deposited by sequential electrodeposition using single potentiostatic pulses. The AFM images of Ag deposits showed small differently sized Ag nanocrystallites uniformly distributed over the VC-substrate. This modified substrate was immersed in an electrolyte solution containing Cd2+ ions and bimetallic Cd–Ag particles were prepared by underpotential deposition (UPD) of Cd. The alloy formation phenomena observed previously during Cd UPD on massive Ag electrodes were found also in the case of Cd UPD on Ag nanoparticles. The desorption spectra in the system Cd/Ag (nanoparticles)/VC employing different polarization times, showed three desorption peaks associated with the dissolution of the Cd OPD and UPD deposits and an Ag–Cd alloy formed at low underpotentials, respectively. The electrochemical behavior of the bimetallic system was also studied applying other polarization routine designed for this purpose.
publishDate 2014
dc.date.none.fl_str_mv 2014-08
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/11336/21687
Ambrusi, Rubén Eduardo; Staikov, G.; Garcia, Silvana Graciela; Electrochemical synthesis of Cd–Ag bimetallic particles and the involved alloy formation; Elsevier; Journal of Electroanalytical Chemistry; 728; 8-2014; 130-133
1572-6657
CONICET Digital
CONICET
url http://hdl.handle.net/11336/21687
identifier_str_mv Ambrusi, Rubén Eduardo; Staikov, G.; Garcia, Silvana Graciela; Electrochemical synthesis of Cd–Ag bimetallic particles and the involved alloy formation; Elsevier; Journal of Electroanalytical Chemistry; 728; 8-2014; 130-133
1572-6657
CONICET Digital
CONICET
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/S1572665714002562
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jelechem.2014.06.022
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 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 13.13397

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