Fractal characterisation of electrodispersed gold electrodes

The fractal dimension of the surface, D<sub>s</sub>, of thin columnar gold electrodeposits (surface roughness factor 50–100) grown on gold wire cathodes by electroreducing hydrous gold oxide layers has been determined by measuring the diffusion controlled current of the Fe(CN)<sup>...

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Detalles Bibliográficos
Autores principales:	Ocon, Pilar, Herrasti, Pilar, Vazquez, Luis, Salvarezza, Roberto Carlos, Vara, J. M., Arvia, Alejandro Jorge
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	1991
Materias:	Ciencias Exactas Química Fractales electrodispersed Oro Electrodos electrodeposits Cationes
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/87026
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-87026
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 Fractales electrodispersed Oro Electrodos electrodeposits Cationes
spellingShingle	Ciencias Exactas Química Fractales electrodispersed Oro Electrodos electrodeposits Cationes Ocon, Pilar Herrasti, Pilar Vazquez, Luis Salvarezza, Roberto Carlos Vara, J. M. Arvia, Alejandro Jorge Fractal characterisation of electrodispersed gold electrodes
topic_facet	Ciencias Exactas Química Fractales electrodispersed Oro Electrodos electrodeposits Cationes
description	The fractal dimension of the surface, D<sub>s</sub>, of thin columnar gold electrodeposits (surface roughness factor 50–100) grown on gold wire cathodes by electroreducing hydrous gold oxide layers has been determined by measuring the diffusion controlled current of the Fe(CN)<sup>4−</sup><sub>6</sub>/Fe(CN)<sup>3−</sup><sub>6</sub> reaction. The diffusion current (I) vs. time (t) relationships obeyed a Iαt<sup>−α</sup> dependence with D<sub>s</sub> = 2α + 1. The initial D<sub>s</sub>, value is 2.5 ± 0.1, and decreases to 2.3 ± 0.1 by keeping the deposit in contact with the electrolyte solution at 298 K due to the smoothing of the rough metal surface by surface diffusion.
format	Articulo Articulo
author	Ocon, Pilar Herrasti, Pilar Vazquez, Luis Salvarezza, Roberto Carlos Vara, J. M. Arvia, Alejandro Jorge
author_facet	Ocon, Pilar Herrasti, Pilar Vazquez, Luis Salvarezza, Roberto Carlos Vara, J. M. Arvia, Alejandro Jorge
author_sort	Ocon, Pilar
title	Fractal characterisation of electrodispersed gold electrodes
title_short	Fractal characterisation of electrodispersed gold electrodes
title_full	Fractal characterisation of electrodispersed gold electrodes
title_fullStr	Fractal characterisation of electrodispersed gold electrodes
title_full_unstemmed	Fractal characterisation of electrodispersed gold electrodes
title_sort	fractal characterisation of electrodispersed gold electrodes
publishDate	1991
url	http://sedici.unlp.edu.ar/handle/10915/87026
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bdutipo_str	Repositorios
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Fractal characterisation of electrodispersed gold electrodes

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