Comparative Study of the Adsorption of Thiols and Selenols on Au(111) and Au(100)

Autores
Arisnabarreta, Nicolás; Ruano Sandoval, Gustavo Daniel; Lingenfelder, Magalí Alejandra; Patrito, Eduardo Martin; Cometto, Fernando Pablo
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The effect of the Au crystalline plane on the adsorption of different thiols and selenols is studied via reductive desorption (RD) and X-ray photoelectron spectroscopy (XPS) measurements. Self-assembled monolayers (SAMs) using aliphatic (ATs) and aromatic thiols (ArTs) on both Au(111) and Au(100) were prepared. The electrochemical stability of these SAMs on both surfaces is evaluated by comparing the position of the RD peaks. The longer the AT chain the more stable the SAM on Au(100) when compared to Au(111). By means of XPS measurements, we determine that the binding energy (BE) of the S 2p signal corresponding to the S atoms at the thiol/Au interface, commonly assigned at 162.0 eV, shifts 0.2 eV from Au(111) to Au(100) for SAMs prepared using thiols with the C∗ (C atom bonded to S) in sp3 hybridization, such as ATs. However, when the thiol presents the C∗ with an sp2 hybridization, such as in the case of ArTs, the BE remains at 162.0 eV regardless of the surface plane. Selenol-based SAMs were characterized comparatively on both Au(100) and Au(111). Our results show that selenol SAMs become even more electrochemically stable on Au(100) with respect to Au(111) than the analogue sulfur-based SAM. According to our results, we suggest that the electronic distribution around the Au-S/Se bond could be responsible for the different structural arrangements reported in the literature (gold adatoms, etc.), which should be dependent on the crystalline face (Au(hkl)-S) and the chemical nature of the environment of the adsorbates (sp3-C∗ vs sp2-C∗ and Au-SR vs Au-SeR).
Fil: Arisnabarreta, Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Ruano Sandoval, Gustavo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Física del Litoral. Universidad Nacional del Litoral. Instituto de Física del Litoral; Argentina
Fil: Lingenfelder, Magalí Alejandra. Max Planck-EPFL Laboratory for Molecular Nanoscience; Suiza
Fil: Patrito, Eduardo Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Cometto, Fernando Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Materia
SAM
THIOLS
SELENOLS
XPS
CVA
ELECTROCHEMICAL STABILITY
Nivel de accesibilidad
acceso embargado
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:11336/37975
Acceder
id CONICETDig_df43217fbd10e913039f9e27fbfa2c21
oai_identifier_str oai:ri.conicet.gov.ar:11336/37975
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Comparative Study of the Adsorption of Thiols and Selenols on Au(111) and Au(100)Arisnabarreta, NicolásRuano Sandoval, Gustavo DanielLingenfelder, Magalí AlejandraPatrito, Eduardo MartinCometto, Fernando PabloSAMTHIOLSSELENOLSXPSCVAELECTROCHEMICAL STABILITYhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The effect of the Au crystalline plane on the adsorption of different thiols and selenols is studied via reductive desorption (RD) and X-ray photoelectron spectroscopy (XPS) measurements. Self-assembled monolayers (SAMs) using aliphatic (ATs) and aromatic thiols (ArTs) on both Au(111) and Au(100) were prepared. The electrochemical stability of these SAMs on both surfaces is evaluated by comparing the position of the RD peaks. The longer the AT chain the more stable the SAM on Au(100) when compared to Au(111). By means of XPS measurements, we determine that the binding energy (BE) of the S 2p signal corresponding to the S atoms at the thiol/Au interface, commonly assigned at 162.0 eV, shifts 0.2 eV from Au(111) to Au(100) for SAMs prepared using thiols with the C∗ (C atom bonded to S) in sp3 hybridization, such as ATs. However, when the thiol presents the C∗ with an sp2 hybridization, such as in the case of ArTs, the BE remains at 162.0 eV regardless of the surface plane. Selenol-based SAMs were characterized comparatively on both Au(100) and Au(111). Our results show that selenol SAMs become even more electrochemically stable on Au(100) with respect to Au(111) than the analogue sulfur-based SAM. According to our results, we suggest that the electronic distribution around the Au-S/Se bond could be responsible for the different structural arrangements reported in the literature (gold adatoms, etc.), which should be dependent on the crystalline face (Au(hkl)-S) and the chemical nature of the environment of the adsorbates (sp3-C∗ vs sp2-C∗ and Au-SR vs Au-SeR).Fil: Arisnabarreta, Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Ruano Sandoval, Gustavo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Física del Litoral. Universidad Nacional del Litoral. Instituto de Física del Litoral; ArgentinaFil: Lingenfelder, Magalí Alejandra. Max Planck-EPFL Laboratory for Molecular Nanoscience; SuizaFil: Patrito, Eduardo Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Cometto, Fernando Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaAmerican Chemical Society2017-12info:eu-repo/date/embargoEnd/2018-06-01info: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/11336/37975Arisnabarreta, Nicolás; Ruano Sandoval, Gustavo Daniel; Lingenfelder, Magalí Alejandra; Patrito, Eduardo Martin; Cometto, Fernando Pablo; Comparative Study of the Adsorption of Thiols and Selenols on Au(111) and Au(100); American Chemical Society; Langmuir; 33; 48; 12-2017; 13733-137390743-7463CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/10.1021/acs.langmuir.7b03038info:eu-repo/semantics/altIdentifier/doi/10.1021/acs.langmuir.7b03038info:eu-repo/semantics/embargoedAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:09:50Zoai:ri.conicet.gov.ar:11336/37975instacron: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 15:09:50.713CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Comparative Study of the Adsorption of Thiols and Selenols on Au(111) and Au(100)
title Comparative Study of the Adsorption of Thiols and Selenols on Au(111) and Au(100)
spellingShingle Comparative Study of the Adsorption of Thiols and Selenols on Au(111) and Au(100)
Arisnabarreta, Nicolás
SAM
THIOLS
SELENOLS
XPS
CVA
ELECTROCHEMICAL STABILITY
title_short Comparative Study of the Adsorption of Thiols and Selenols on Au(111) and Au(100)
title_full Comparative Study of the Adsorption of Thiols and Selenols on Au(111) and Au(100)
title_fullStr Comparative Study of the Adsorption of Thiols and Selenols on Au(111) and Au(100)
title_full_unstemmed Comparative Study of the Adsorption of Thiols and Selenols on Au(111) and Au(100)
title_sort Comparative Study of the Adsorption of Thiols and Selenols on Au(111) and Au(100)
dc.creator.none.fl_str_mv Arisnabarreta, Nicolás
Ruano Sandoval, Gustavo Daniel
Lingenfelder, Magalí Alejandra
Patrito, Eduardo Martin
Cometto, Fernando Pablo
author Arisnabarreta, Nicolás
author_facet Arisnabarreta, Nicolás
Ruano Sandoval, Gustavo Daniel
Lingenfelder, Magalí Alejandra
Patrito, Eduardo Martin
Cometto, Fernando Pablo
author_role author
author2 Ruano Sandoval, Gustavo Daniel
Lingenfelder, Magalí Alejandra
Patrito, Eduardo Martin
Cometto, Fernando Pablo
author2_role author
author
author
author
dc.subject.none.fl_str_mv SAM
THIOLS
SELENOLS
XPS
CVA
ELECTROCHEMICAL STABILITY
topic SAM
THIOLS
SELENOLS
XPS
CVA
ELECTROCHEMICAL STABILITY
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The effect of the Au crystalline plane on the adsorption of different thiols and selenols is studied via reductive desorption (RD) and X-ray photoelectron spectroscopy (XPS) measurements. Self-assembled monolayers (SAMs) using aliphatic (ATs) and aromatic thiols (ArTs) on both Au(111) and Au(100) were prepared. The electrochemical stability of these SAMs on both surfaces is evaluated by comparing the position of the RD peaks. The longer the AT chain the more stable the SAM on Au(100) when compared to Au(111). By means of XPS measurements, we determine that the binding energy (BE) of the S 2p signal corresponding to the S atoms at the thiol/Au interface, commonly assigned at 162.0 eV, shifts 0.2 eV from Au(111) to Au(100) for SAMs prepared using thiols with the C∗ (C atom bonded to S) in sp3 hybridization, such as ATs. However, when the thiol presents the C∗ with an sp2 hybridization, such as in the case of ArTs, the BE remains at 162.0 eV regardless of the surface plane. Selenol-based SAMs were characterized comparatively on both Au(100) and Au(111). Our results show that selenol SAMs become even more electrochemically stable on Au(100) with respect to Au(111) than the analogue sulfur-based SAM. According to our results, we suggest that the electronic distribution around the Au-S/Se bond could be responsible for the different structural arrangements reported in the literature (gold adatoms, etc.), which should be dependent on the crystalline face (Au(hkl)-S) and the chemical nature of the environment of the adsorbates (sp3-C∗ vs sp2-C∗ and Au-SR vs Au-SeR).
Fil: Arisnabarreta, Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Ruano Sandoval, Gustavo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Física del Litoral. Universidad Nacional del Litoral. Instituto de Física del Litoral; Argentina
Fil: Lingenfelder, Magalí Alejandra. Max Planck-EPFL Laboratory for Molecular Nanoscience; Suiza
Fil: Patrito, Eduardo Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Cometto, Fernando Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
description The effect of the Au crystalline plane on the adsorption of different thiols and selenols is studied via reductive desorption (RD) and X-ray photoelectron spectroscopy (XPS) measurements. Self-assembled monolayers (SAMs) using aliphatic (ATs) and aromatic thiols (ArTs) on both Au(111) and Au(100) were prepared. The electrochemical stability of these SAMs on both surfaces is evaluated by comparing the position of the RD peaks. The longer the AT chain the more stable the SAM on Au(100) when compared to Au(111). By means of XPS measurements, we determine that the binding energy (BE) of the S 2p signal corresponding to the S atoms at the thiol/Au interface, commonly assigned at 162.0 eV, shifts 0.2 eV from Au(111) to Au(100) for SAMs prepared using thiols with the C∗ (C atom bonded to S) in sp3 hybridization, such as ATs. However, when the thiol presents the C∗ with an sp2 hybridization, such as in the case of ArTs, the BE remains at 162.0 eV regardless of the surface plane. Selenol-based SAMs were characterized comparatively on both Au(100) and Au(111). Our results show that selenol SAMs become even more electrochemically stable on Au(100) with respect to Au(111) than the analogue sulfur-based SAM. According to our results, we suggest that the electronic distribution around the Au-S/Se bond could be responsible for the different structural arrangements reported in the literature (gold adatoms, etc.), which should be dependent on the crystalline face (Au(hkl)-S) and the chemical nature of the environment of the adsorbates (sp3-C∗ vs sp2-C∗ and Au-SR vs Au-SeR).
publishDate 2017
dc.date.none.fl_str_mv 2017-12
info:eu-repo/date/embargoEnd/2018-06-01
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/11336/37975
Arisnabarreta, Nicolás; Ruano Sandoval, Gustavo Daniel; Lingenfelder, Magalí Alejandra; Patrito, Eduardo Martin; Cometto, Fernando Pablo; Comparative Study of the Adsorption of Thiols and Selenols on Au(111) and Au(100); American Chemical Society; Langmuir; 33; 48; 12-2017; 13733-13739
0743-7463
CONICET Digital
CONICET
url http://hdl.handle.net/11336/37975
identifier_str_mv Arisnabarreta, Nicolás; Ruano Sandoval, Gustavo Daniel; Lingenfelder, Magalí Alejandra; Patrito, Eduardo Martin; Cometto, Fernando Pablo; Comparative Study of the Adsorption of Thiols and Selenols on Au(111) and Au(100); American Chemical Society; Langmuir; 33; 48; 12-2017; 13733-13739
0743-7463
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/10.1021/acs.langmuir.7b03038
info:eu-repo/semantics/altIdentifier/doi/10.1021/acs.langmuir.7b03038
dc.rights.none.fl_str_mv info:eu-repo/semantics/embargoedAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv embargoedAccess
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 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
_version_ 1846083246533640192
score 13.221938

Publicaciones similares