Scanning tunneling microscopy and electrochemical response of electrofacetted gold electrodes

A first attempt to establish a direct correlation between ex situ scanning tunneling microscopy imaging and voltammetric features of gold electrodes is presented. For this purpose gold microelectrodes, either polyfacetted or electrochemically were used. The STM topography of polyfacetted gold micro-...

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Detalles Bibliográficos
Autores principales:	Gómez, J., Vásquez, L., Baró, A. M., Perdriel, Carlos L., Arvia, Alejandro Jorge
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	1989
Materias:	Ciencias Exactas Química scanning tunneling microscopy gold electrodes
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/126545 https://www.sciencedirect.com/science/article/abs/pii/0013468689850042
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-126545
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Ciencias Exactas Química scanning tunneling microscopy gold electrodes
spellingShingle	Ciencias Exactas Química scanning tunneling microscopy gold electrodes Gómez, J. Vásquez, L. Baró, A. M. Perdriel, Carlos L. Arvia, Alejandro Jorge Scanning tunneling microscopy and electrochemical response of electrofacetted gold electrodes
topic_facet	Ciencias Exactas Química scanning tunneling microscopy gold electrodes
description	A first attempt to establish a direct correlation between ex situ scanning tunneling microscopy imaging and voltammetric features of gold electrodes is presented. For this purpose gold microelectrodes, either polyfacetted or electrochemically were used. The STM topography of polyfacetted gold micro- electrodes exhibits flat domains and regions with a number of different defects, whereas that of electrofacetted gold presents a parallel ridge-like structure of a few atoms height together with other types of defects. Lead UPD and voltammetric stripping reactions for the O-electrodesorption reactions both in acid solution were selected as test reactions. The correlation between STM topography and voltammetry data supports qualitatively the assignments made for lead UPD peaks resulting on different gold single crystal surfaces.
format	Articulo Articulo
author	Gómez, J. Vásquez, L. Baró, A. M. Perdriel, Carlos L. Arvia, Alejandro Jorge
author_facet	Gómez, J. Vásquez, L. Baró, A. M. Perdriel, Carlos L. Arvia, Alejandro Jorge
author_sort	Gómez, J.
title	Scanning tunneling microscopy and electrochemical response of electrofacetted gold electrodes
title_short	Scanning tunneling microscopy and electrochemical response of electrofacetted gold electrodes
title_full	Scanning tunneling microscopy and electrochemical response of electrofacetted gold electrodes
title_fullStr	Scanning tunneling microscopy and electrochemical response of electrofacetted gold electrodes
title_full_unstemmed	Scanning tunneling microscopy and electrochemical response of electrofacetted gold electrodes
title_sort	scanning tunneling microscopy and electrochemical response of electrofacetted gold electrodes
publishDate	1989
url	http://sedici.unlp.edu.ar/handle/10915/126545 https://www.sciencedirect.com/science/article/abs/pii/0013468689850042
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bdutipo_str	Repositorios
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Scanning tunneling microscopy and electrochemical response of electrofacetted gold electrodes

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