Fractal characterisation of electrodispersed gold electrodes
- Autores
- Ocon, Pilar; Herrasti, Pilar; Vazquez, Luis; Salvarezza, Roberto Carlos; Vara, J. M.; Arvia, Alejandro Jorge
- Año de publicación
- 1991
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The fractal dimension of the surface, Ds, 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)4−6/Fe(CN)3−6 reaction. The diffusion current (I) vs. time (t) relationships obeyed a Iαt−α dependence with Ds = 2α + 1. The initial Ds, 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.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Facultad de Ciencias Exactas - Materia
-
Ciencias Exactas
Química
Fractales
electrodispersed
Oro
Electrodos
electrodeposits
Cationes - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/87026
Ver los metadatos del registro completo
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Fractal characterisation of electrodispersed gold electrodesOcon, PilarHerrasti, PilarVazquez, LuisSalvarezza, Roberto CarlosVara, J. M.Arvia, Alejandro JorgeCiencias ExactasQuímicaFractaleselectrodispersedOroElectrodoselectrodepositsCationesThe 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.Instituto de Investigaciones Fisicoquímicas Teóricas y AplicadasFacultad de Ciencias Exactas1991-12-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf101-110http://sedici.unlp.edu.ar/handle/10915/87026enginfo:eu-repo/semantics/altIdentifier/issn/0022-0728info:eu-repo/semantics/altIdentifier/doi/10.1016/0022-0728(91)87070-Kinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:17:23Zoai:sedici.unlp.edu.ar:10915/87026Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:17:24.118SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Fractal characterisation of electrodispersed gold electrodes |
| title |
Fractal characterisation of electrodispersed gold electrodes |
| spellingShingle |
Fractal characterisation of electrodispersed gold electrodes Ocon, Pilar Ciencias Exactas Química Fractales electrodispersed Oro Electrodos electrodeposits Cationes |
| 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 |
| dc.creator.none.fl_str_mv |
Ocon, Pilar Herrasti, Pilar Vazquez, Luis Salvarezza, Roberto Carlos Vara, J. M. Arvia, Alejandro Jorge |
| author |
Ocon, Pilar |
| author_facet |
Ocon, Pilar Herrasti, Pilar Vazquez, Luis Salvarezza, Roberto Carlos Vara, J. M. Arvia, Alejandro Jorge |
| author_role |
author |
| author2 |
Herrasti, Pilar Vazquez, Luis Salvarezza, Roberto Carlos Vara, J. M. Arvia, Alejandro Jorge |
| author2_role |
author author author author author |
| dc.subject.none.fl_str_mv |
Ciencias Exactas Química Fractales electrodispersed Oro Electrodos electrodeposits Cationes |
| topic |
Ciencias Exactas Química Fractales electrodispersed Oro Electrodos electrodeposits Cationes |
| dc.description.none.fl_txt_mv |
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. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas Facultad de Ciencias Exactas |
| 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. |
| publishDate |
1991 |
| dc.date.none.fl_str_mv |
1991-12-10 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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publishedVersion |
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http://sedici.unlp.edu.ar/handle/10915/87026 |
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http://sedici.unlp.edu.ar/handle/10915/87026 |
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eng |
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eng |
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info:eu-repo/semantics/altIdentifier/issn/0022-0728 info:eu-repo/semantics/altIdentifier/doi/10.1016/0022-0728(91)87070-K |
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