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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/100469
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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 Técnicas2025-09-29T09:38:44Zoai: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:34982025-09-29 09:38:45.145CONICET 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 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 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 |
13.070432 |