Electrochemical and X-ray Photoelectron Spectroscopy Characterization of Alkanethiols Adsorbed on Palladium Surfaces

Autores
Corthey, Gastón; Rubert, Aldo Alberto; Benitez, Guillermo Alfredo; Fonticelli, Mariano Hernan; Salvarezza, Roberto Carlos
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The self-assembly of alkanethiolate monolayers on palladium substrates and their stability in aqueous solutions have been studied by electrochemical techniques and X-ray photoelectron spectroscopy (XPS). Alkanethiols adsorb on Pd from ethanolic solutions forming a complex interface which consists of thiolates onto a diluted palladium sulfide interphase, with surface coverages θSulfide ≈ 0.4 and θthiolate ≈ 0.30, respectively. These complex adlayers exhibit hydrocarbon chain-length dependent barrier properties like those formed on Au and Ag substrates. For short chain alkanethiols, thiolates are more stable against reductive desorption than selfassembled monolayers (SAMs) on Au, Ag, and Ni. The increased stability of the organic species seems to be related to the presence of the diluted sulfide layer that also explains the chain length independence of the stability potential range. The stability of these monolayers in aqueous solutions indicates that Pd is a suitable platform for thiolate-based devices such as sensors and biosensors. These results also suggest that electrochemical cleaning should be a simple way to prepare metallic nanoparticles from thiol-capped Pd nanoparticles adsorbed on conducting substrates.
Fil: Corthey, Gastón. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Rubert, Aldo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Benitez, Guillermo Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Fonticelli, Mariano Hernan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Salvarezza, Roberto Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Materia
SURFACES
X-RAY ELECTRON SPECTROSCOPY
ALKANETHIOLS
PALLADIUM
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:11336/100469
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/100469
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Electrochemical and X-ray Photoelectron Spectroscopy Characterization of Alkanethiols Adsorbed on Palladium SurfacesCorthey, GastónRubert, Aldo AlbertoBenitez, Guillermo AlfredoFonticelli, Mariano HernanSalvarezza, Roberto CarlosSURFACESX-RAY ELECTRON SPECTROSCOPYALKANETHIOLSPALLADIUMhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The self-assembly of alkanethiolate monolayers on palladium substrates and their stability in aqueous solutions have been studied by electrochemical techniques and X-ray photoelectron spectroscopy (XPS). Alkanethiols adsorb on Pd from ethanolic solutions forming a complex interface which consists of thiolates onto a diluted palladium sulfide interphase, with surface coverages θSulfide ≈ 0.4 and θthiolate ≈ 0.30, respectively. These complex adlayers exhibit hydrocarbon chain-length dependent barrier properties like those formed on Au and Ag substrates. For short chain alkanethiols, thiolates are more stable against reductive desorption than selfassembled monolayers (SAMs) on Au, Ag, and Ni. The increased stability of the organic species seems to be related to the presence of the diluted sulfide layer that also explains the chain length independence of the stability potential range. The stability of these monolayers in aqueous solutions indicates that Pd is a suitable platform for thiolate-based devices such as sensors and biosensors. These results also suggest that electrochemical cleaning should be a simple way to prepare metallic nanoparticles from thiol-capped Pd nanoparticles adsorbed on conducting substrates.Fil: Corthey, Gastón. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Rubert, Aldo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Benitez, Guillermo Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Fonticelli, Mariano Hernan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Salvarezza, Roberto Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaAmerican Chemical Society2009-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/100469Corthey, Gastón; Rubert, Aldo Alberto; Benitez, Guillermo Alfredo; Fonticelli, Mariano Hernan; Salvarezza, Roberto Carlos; Electrochemical and X-ray Photoelectron Spectroscopy Characterization of Alkanethiols Adsorbed on Palladium Surfaces; American Chemical Society; Journal of Physical Chemistry C; 113; 16; 4-2009; 6735-67421932-7447CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/abs/10.1021/jp9001077info:eu-repo/semantics/altIdentifier/doi/10.1021/jp9001077info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:27:58Zoai:ri.conicet.gov.ar:11336/100469instacron: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:34982025-10-15 14:27:58.901CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Electrochemical and X-ray Photoelectron Spectroscopy Characterization of Alkanethiols Adsorbed on Palladium Surfaces
title Electrochemical and X-ray Photoelectron Spectroscopy Characterization of Alkanethiols Adsorbed on Palladium Surfaces
spellingShingle Electrochemical and X-ray Photoelectron Spectroscopy Characterization of Alkanethiols Adsorbed on Palladium Surfaces
Corthey, Gastón
SURFACES
X-RAY ELECTRON SPECTROSCOPY
ALKANETHIOLS
PALLADIUM
title_short Electrochemical and X-ray Photoelectron Spectroscopy Characterization of Alkanethiols Adsorbed on Palladium Surfaces
title_full Electrochemical and X-ray Photoelectron Spectroscopy Characterization of Alkanethiols Adsorbed on Palladium Surfaces
title_fullStr Electrochemical and X-ray Photoelectron Spectroscopy Characterization of Alkanethiols Adsorbed on Palladium Surfaces
title_full_unstemmed Electrochemical and X-ray Photoelectron Spectroscopy Characterization of Alkanethiols Adsorbed on Palladium Surfaces
title_sort Electrochemical and X-ray Photoelectron Spectroscopy Characterization of Alkanethiols Adsorbed on Palladium Surfaces
dc.creator.none.fl_str_mv Corthey, Gastón
Rubert, Aldo Alberto
Benitez, Guillermo Alfredo
Fonticelli, Mariano Hernan
Salvarezza, Roberto Carlos
author Corthey, Gastón
author_facet Corthey, Gastón
Rubert, Aldo Alberto
Benitez, Guillermo Alfredo
Fonticelli, Mariano Hernan
Salvarezza, Roberto Carlos
author_role author
author2 Rubert, Aldo Alberto
Benitez, Guillermo Alfredo
Fonticelli, Mariano Hernan
Salvarezza, Roberto Carlos
author2_role author
author
author
author
dc.subject.none.fl_str_mv SURFACES
X-RAY ELECTRON SPECTROSCOPY
ALKANETHIOLS
PALLADIUM
topic SURFACES
X-RAY ELECTRON SPECTROSCOPY
ALKANETHIOLS
PALLADIUM
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 self-assembly of alkanethiolate monolayers on palladium substrates and their stability in aqueous solutions have been studied by electrochemical techniques and X-ray photoelectron spectroscopy (XPS). Alkanethiols adsorb on Pd from ethanolic solutions forming a complex interface which consists of thiolates onto a diluted palladium sulfide interphase, with surface coverages θSulfide ≈ 0.4 and θthiolate ≈ 0.30, respectively. These complex adlayers exhibit hydrocarbon chain-length dependent barrier properties like those formed on Au and Ag substrates. For short chain alkanethiols, thiolates are more stable against reductive desorption than selfassembled monolayers (SAMs) on Au, Ag, and Ni. The increased stability of the organic species seems to be related to the presence of the diluted sulfide layer that also explains the chain length independence of the stability potential range. The stability of these monolayers in aqueous solutions indicates that Pd is a suitable platform for thiolate-based devices such as sensors and biosensors. These results also suggest that electrochemical cleaning should be a simple way to prepare metallic nanoparticles from thiol-capped Pd nanoparticles adsorbed on conducting substrates.
Fil: Corthey, Gastón. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Rubert, Aldo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Benitez, Guillermo Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Fonticelli, Mariano Hernan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Salvarezza, Roberto Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
description The self-assembly of alkanethiolate monolayers on palladium substrates and their stability in aqueous solutions have been studied by electrochemical techniques and X-ray photoelectron spectroscopy (XPS). Alkanethiols adsorb on Pd from ethanolic solutions forming a complex interface which consists of thiolates onto a diluted palladium sulfide interphase, with surface coverages θSulfide ≈ 0.4 and θthiolate ≈ 0.30, respectively. These complex adlayers exhibit hydrocarbon chain-length dependent barrier properties like those formed on Au and Ag substrates. For short chain alkanethiols, thiolates are more stable against reductive desorption than selfassembled monolayers (SAMs) on Au, Ag, and Ni. The increased stability of the organic species seems to be related to the presence of the diluted sulfide layer that also explains the chain length independence of the stability potential range. The stability of these monolayers in aqueous solutions indicates that Pd is a suitable platform for thiolate-based devices such as sensors and biosensors. These results also suggest that electrochemical cleaning should be a simple way to prepare metallic nanoparticles from thiol-capped Pd nanoparticles adsorbed on conducting substrates.
publishDate 2009
dc.date.none.fl_str_mv 2009-04
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/11336/100469
Corthey, Gastón; Rubert, Aldo Alberto; Benitez, Guillermo Alfredo; Fonticelli, Mariano Hernan; Salvarezza, Roberto Carlos; Electrochemical and X-ray Photoelectron Spectroscopy Characterization of Alkanethiols Adsorbed on Palladium Surfaces; American Chemical Society; Journal of Physical Chemistry C; 113; 16; 4-2009; 6735-6742
1932-7447
CONICET Digital
CONICET
url http://hdl.handle.net/11336/100469
identifier_str_mv Corthey, Gastón; Rubert, Aldo Alberto; Benitez, Guillermo Alfredo; Fonticelli, Mariano Hernan; Salvarezza, Roberto Carlos; Electrochemical and X-ray Photoelectron Spectroscopy Characterization of Alkanethiols Adsorbed on Palladium Surfaces; American Chemical Society; Journal of Physical Chemistry C; 113; 16; 4-2009; 6735-6742
1932-7447
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://pubs.acs.org/doi/abs/10.1021/jp9001077
info:eu-repo/semantics/altIdentifier/doi/10.1021/jp9001077
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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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
application/pdf
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
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 13.22299

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