Comparative Study of Hydrogen Electrooxidation on Gold and Platinum in Solutions Containing Perchlorate Ion

The electrooxidation of hydrogen on platinum and gold electrodes is comparatively described in this paper. The reaction is faster on platinum than on the gold surface, because the reactive diffuses inside of the gold metal. This process is complicated with the lift of surface reconstruction of the (...

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Detalles Bibliográficos
Autores principales: Von Mengershausen, Alicia E., Almeida, Norma V., Barzola, Mariela N., Zerbino, Jorge Omar, Esquenoni, Sylvia M., Sustersic, María G.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2014
Materias:
Química
Hydrogen
Electrooxidation
Gold
Platinum
Perchlorate Ion
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/81337
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-81337
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Hydrogen
Electrooxidation
Gold
Platinum
Perchlorate Ion
spellingShingle Química
Hydrogen
Electrooxidation
Gold
Platinum
Perchlorate Ion
Von Mengershausen, Alicia E.
Almeida, Norma V.
Barzola, Mariela N.
Zerbino, Jorge Omar
Esquenoni, Sylvia M.
Sustersic, María G.
Comparative Study of Hydrogen Electrooxidation on Gold and Platinum in Solutions Containing Perchlorate Ion
topic_facet Química
Hydrogen
Electrooxidation
Gold
Platinum
Perchlorate Ion
description The electrooxidation of hydrogen on platinum and gold electrodes is comparatively described in this paper. The reaction is faster on platinum than on the gold surface, because the reactive diffuses inside of the gold metal. This process is complicated with the lift of surface reconstruction of the (100) plane, which allows the fast penetration of the H atoms through the more open surface. The diffusion limiting current is then discontinued and the current falls. On platinum, the current fall occurs simultaneously with the metal oxide formation. It is assumed that the hydrogen helps the adsorbed OH group formation, which is the first step of metal oxidation, and it has been called “incipient hydrous oxide” (IHO). Current begins to fall slowly at the (IHO) potential. At higher potential the current falls abruptly.
format Articulo
Articulo
author Von Mengershausen, Alicia E.
Almeida, Norma V.
Barzola, Mariela N.
Zerbino, Jorge Omar
Esquenoni, Sylvia M.
Sustersic, María G.
author_facet Von Mengershausen, Alicia E.
Almeida, Norma V.
Barzola, Mariela N.
Zerbino, Jorge Omar
Esquenoni, Sylvia M.
Sustersic, María G.
author_sort Von Mengershausen, Alicia E.
title Comparative Study of Hydrogen Electrooxidation on Gold and Platinum in Solutions Containing Perchlorate Ion
title_short Comparative Study of Hydrogen Electrooxidation on Gold and Platinum in Solutions Containing Perchlorate Ion
title_full Comparative Study of Hydrogen Electrooxidation on Gold and Platinum in Solutions Containing Perchlorate Ion
title_fullStr Comparative Study of Hydrogen Electrooxidation on Gold and Platinum in Solutions Containing Perchlorate Ion
title_full_unstemmed Comparative Study of Hydrogen Electrooxidation on Gold and Platinum in Solutions Containing Perchlorate Ion
title_sort comparative study of hydrogen electrooxidation on gold and platinum in solutions containing perchlorate ion
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/81337
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