Thiol-capped gold: from planar to irregular surfaces

Thiol-capped metals, in particular gold, have a wide range of technological applications, especially for building systems by bottom-up methods. In most cases, stability of the organic film during exposure to ambient conditions and/or to electrolyte solutions is a crucial requirement. In this work we...

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Autores principales: Vericat, Carolina, Benitez, Guillermo Alfredo, Grumelli, Doris Elda, Vela, María Elena, Salvarezza, Roberto Carlos
Formato: Articulo
Lenguaje:Inglés
Publicado: 2008
Materias:
Ciencias Exactas
Física
thiol-capped metals
butanethiol self-assembled monolayers
stability
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/163103
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-163103
record_format dspace
spelling I19-R120-10915-1631032024-02-26T20:09:39Z http://sedici.unlp.edu.ar/handle/10915/163103 Thiol-capped gold: from planar to irregular surfaces Vericat, Carolina Benitez, Guillermo Alfredo Grumelli, Doris Elda Vela, María Elena Salvarezza, Roberto Carlos 2008 2024-02-26T13:26:08Z en Ciencias Exactas Física thiol-capped metals butanethiol self-assembled monolayers stability Thiol-capped metals, in particular gold, have a wide range of technological applications, especially for building systems by bottom-up methods. In most cases, stability of the organic film during exposure to ambient conditions and/or to electrolyte solutions is a crucial requirement. In this work we discuss the stability of butanethiol self-assembled monolayers (SAMs) on planar, nanocurved and irregular Au surfaces against both air exposure and electrodesorption in aqueous media. We have found a slower rate of air oxidation and increased stability against electrodesorption for butanethiol monolayers on highly irregular Au surfaces as compared to those on planar surfaces. The increased stability of SAMs on highly irregular surfaces is promising because desorption and degradation seriously limit their application in nanotechnology. Facultad de Ciencias Exactas Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas Articulo Articulo http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) application/pdf
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
thiol-capped metals
butanethiol self-assembled monolayers
stability
spellingShingle Ciencias Exactas
Física
thiol-capped metals
butanethiol self-assembled monolayers
stability
Vericat, Carolina
Benitez, Guillermo Alfredo
Grumelli, Doris Elda
Vela, María Elena
Salvarezza, Roberto Carlos
Thiol-capped gold: from planar to irregular surfaces
topic_facet Ciencias Exactas
Física
thiol-capped metals
butanethiol self-assembled monolayers
stability
description Thiol-capped metals, in particular gold, have a wide range of technological applications, especially for building systems by bottom-up methods. In most cases, stability of the organic film during exposure to ambient conditions and/or to electrolyte solutions is a crucial requirement. In this work we discuss the stability of butanethiol self-assembled monolayers (SAMs) on planar, nanocurved and irregular Au surfaces against both air exposure and electrodesorption in aqueous media. We have found a slower rate of air oxidation and increased stability against electrodesorption for butanethiol monolayers on highly irregular Au surfaces as compared to those on planar surfaces. The increased stability of SAMs on highly irregular surfaces is promising because desorption and degradation seriously limit their application in nanotechnology.
format Articulo
Articulo
author Vericat, Carolina
Benitez, Guillermo Alfredo
Grumelli, Doris Elda
Vela, María Elena
Salvarezza, Roberto Carlos
author_facet Vericat, Carolina
Benitez, Guillermo Alfredo
Grumelli, Doris Elda
Vela, María Elena
Salvarezza, Roberto Carlos
author_sort Vericat, Carolina
title Thiol-capped gold: from planar to irregular surfaces
title_short Thiol-capped gold: from planar to irregular surfaces
title_full Thiol-capped gold: from planar to irregular surfaces
title_fullStr Thiol-capped gold: from planar to irregular surfaces
title_full_unstemmed Thiol-capped gold: from planar to irregular surfaces
title_sort thiol-capped gold: from planar to irregular surfaces
publishDate 2008
url http://sedici.unlp.edu.ar/handle/10915/163103
work_keys_str_mv AT vericatcarolina thiolcappedgoldfromplanartoirregularsurfaces
AT benitezguillermoalfredo thiolcappedgoldfromplanartoirregularsurfaces
AT grumellidoriselda thiolcappedgoldfromplanartoirregularsurfaces
AT velamariaelena thiolcappedgoldfromplanartoirregularsurfaces
AT salvarezzarobertocarlos thiolcappedgoldfromplanartoirregularsurfaces
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