Surface Chemistry of 4-Mercaptobenzoic Acid Self-Assembled on Ag(111) and Ag Nanoparticles.

The adsorption of 4-mercaptobenzoic acid (MBA) on Ag(111) and Ag nanoparticles (AgNPs) has been studied by X-ray photoelectron spectroscopy (XPS), electrochemical techniques, high-resolution transmission electron microscopy (HRTEM), and density functional theory (DFT) calculations. Results show that...

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Autores: Maya Giron, Julie Viviana, Zelaya, Maria Eugenia, Rubert, Aldo Alberto, Benitez, Guillermo Alfredo, Carro, Pilar, Salvarezza, Roberto Carlos, Vela, Maria Elena
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2013
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/1275
Acceso en línea:http://hdl.handle.net/11336/1275
Access Level:acceso abierto
Palabra clave:4-Mercaptobenzoic Acid
(Mba) Ag(111) And Ag Nanoparticles (Agnps)
Xps, Hrtem,Dft,Electrochemical Techniques
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
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spelling Surface Chemistry of 4-Mercaptobenzoic Acid Self-Assembled on Ag(111) and Ag Nanoparticles.Maya Giron, Julie VivianaZelaya, Maria EugeniaRubert, Aldo AlbertoBenitez, Guillermo AlfredoCarro, PilarSalvarezza, Roberto CarlosVela, Maria Elena4-Mercaptobenzoic Acid(Mba) Ag(111) And Ag Nanoparticles (Agnps)Xps, Hrtem,Dft,Electrochemical Techniqueshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The adsorption of 4-mercaptobenzoic acid (MBA) on Ag(111) and Ag nanoparticles (AgNPs) has been studied by X-ray photoelectron spectroscopy (XPS), electrochemical techniques, high-resolution transmission electron microscopy (HRTEM), and density functional theory (DFT) calculations. Results show that MBA molecules adsorb intact on the Ag (111) surface via a thiolate bond, arranged in a (√3 × 4) lattice with coverage θ = 0.25. The phase diagram built using DFT data shows that this lattice is more stable than the dense (√7 × √7)R19.1 MBA lattices on reconstructed Ag(111) surfaces. No significant amounts of sulfide were found neither on the Ag(111) surfaces nor on MBA-protected AgNPs, suggesting that the Ag core@Ag-sulfide shell structure where thiolates could be grafted cannot be applied to the MBA-protected AgNPs. Slow degradation of the MBA protective layer in ambient conditions on the AgNPs results in disulfide formation and AgNP sintering.Fil: Maya Giron, Julie Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicaciones; ArgentinaFil: Zelaya, Maria Eugenia. Comisión Nacional de Energía Atómica. Gerencia del área Investigaciones y Aplicaciones No Nucleares. Gerencia de Fisica (cab). División Física de Metales; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Rubert, Aldo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicaciones; ArgentinaFil: Benitez, Guillermo Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicaciones; ArgentinaFil: Carro, Pilar. Universidad de La Laguna; EspañaFil: Salvarezza, Roberto Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicaciones; ArgentinaFil: Vela, Maria Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicaciones; ArgentinaAmerican Chemical Society2013-10-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/1275Maya Giron, Julie Viviana; Zelaya, Maria Eugenia; Rubert, Aldo Alberto; Benitez, Guillermo Alfredo; Carro, Pilar; et al.; Surface Chemistry of 4-Mercaptobenzoic Acid Self-Assembled on Ag(111) and Ag Nanoparticles.; American Chemical Society; Journal of Physical Chemistry C; 117; 47; 28-10-2013; 24967-249741932-7447enginfo:eu-repo/semantics/altIdentifier/doi/10.1021/jp409785cinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T14:21:26Zoai:ri.conicet.gov.ar:11336/1275instacron: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 14:21:26.875CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Surface Chemistry of 4-Mercaptobenzoic Acid Self-Assembled on Ag(111) and Ag Nanoparticles.
title Surface Chemistry of 4-Mercaptobenzoic Acid Self-Assembled on Ag(111) and Ag Nanoparticles.
spellingShingle Surface Chemistry of 4-Mercaptobenzoic Acid Self-Assembled on Ag(111) and Ag Nanoparticles.
Maya Giron, Julie Viviana
4-Mercaptobenzoic Acid
(Mba) Ag(111) And Ag Nanoparticles (Agnps)
Xps, Hrtem,Dft,Electrochemical Techniques
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
title_short Surface Chemistry of 4-Mercaptobenzoic Acid Self-Assembled on Ag(111) and Ag Nanoparticles.
title_full Surface Chemistry of 4-Mercaptobenzoic Acid Self-Assembled on Ag(111) and Ag Nanoparticles.
title_fullStr Surface Chemistry of 4-Mercaptobenzoic Acid Self-Assembled on Ag(111) and Ag Nanoparticles.
title_full_unstemmed Surface Chemistry of 4-Mercaptobenzoic Acid Self-Assembled on Ag(111) and Ag Nanoparticles.
title_sort Surface Chemistry of 4-Mercaptobenzoic Acid Self-Assembled on Ag(111) and Ag Nanoparticles.
dc.creator.none.fl_str_mv Maya Giron, Julie Viviana
Zelaya, Maria Eugenia
Rubert, Aldo Alberto
Benitez, Guillermo Alfredo
Carro, Pilar
Salvarezza, Roberto Carlos
Vela, Maria Elena
author Maya Giron, Julie Viviana
author_facet Maya Giron, Julie Viviana
Zelaya, Maria Eugenia
Rubert, Aldo Alberto
Benitez, Guillermo Alfredo
Carro, Pilar
Salvarezza, Roberto Carlos
Vela, Maria Elena
author_role author
author2 Zelaya, Maria Eugenia
Rubert, Aldo Alberto
Benitez, Guillermo Alfredo
Carro, Pilar
Salvarezza, Roberto Carlos
Vela, Maria Elena
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv 4-Mercaptobenzoic Acid
(Mba) Ag(111) And Ag Nanoparticles (Agnps)
Xps, Hrtem,Dft,Electrochemical Techniques
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
topic 4-Mercaptobenzoic Acid
(Mba) Ag(111) And Ag Nanoparticles (Agnps)
Xps, Hrtem,Dft,Electrochemical Techniques
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
description The adsorption of 4-mercaptobenzoic acid (MBA) on Ag(111) and Ag nanoparticles (AgNPs) has been studied by X-ray photoelectron spectroscopy (XPS), electrochemical techniques, high-resolution transmission electron microscopy (HRTEM), and density functional theory (DFT) calculations. Results show that MBA molecules adsorb intact on the Ag (111) surface via a thiolate bond, arranged in a (√3 × 4) lattice with coverage θ = 0.25. The phase diagram built using DFT data shows that this lattice is more stable than the dense (√7 × √7)R19.1 MBA lattices on reconstructed Ag(111) surfaces. No significant amounts of sulfide were found neither on the Ag(111) surfaces nor on MBA-protected AgNPs, suggesting that the Ag core@Ag-sulfide shell structure where thiolates could be grafted cannot be applied to the MBA-protected AgNPs. Slow degradation of the MBA protective layer in ambient conditions on the AgNPs results in disulfide formation and AgNP sintering.
publishDate 2013
dc.date.none.fl_str_mv 2013-10-28
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/11336/1275
Maya Giron, Julie Viviana; Zelaya, Maria Eugenia; Rubert, Aldo Alberto; Benitez, Guillermo Alfredo; Carro, Pilar; et al.; Surface Chemistry of 4-Mercaptobenzoic Acid Self-Assembled on Ag(111) and Ag Nanoparticles.; American Chemical Society; Journal of Physical Chemistry C; 117; 47; 28-10-2013; 24967-24974
1932-7447
url http://hdl.handle.net/11336/1275
identifier_str_mv Maya Giron, Julie Viviana; Zelaya, Maria Eugenia; Rubert, Aldo Alberto; Benitez, Guillermo Alfredo; Carro, Pilar; et al.; Surface Chemistry of 4-Mercaptobenzoic Acid Self-Assembled on Ag(111) and Ag Nanoparticles.; American Chemical Society; Journal of Physical Chemistry C; 117; 47; 28-10-2013; 24967-24974
1932-7447
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1021/jp409785c
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 American Chemical Society
publisher.none.fl_str_mv American Chemical Society
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
_version_ 1799196279697309696
score 15,811543

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