Chemical evidence of hydrogen sorption processes on potential cycled gold electrodes

Transient activation of polycrystalline gold electrodes for the hydrogen electrode reaction, produced either through potentiostatic or potentiodynamic treatment, is related to the adsorption of H atoms and its penetration into the bulk. Evidence for H atoms results from the application of silver cry...

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Detalles Bibliográficos
Autores principales: Martins, María Elisa, Podestá, José J., Arvia, Alejandro Jorge
Formato: Articulo
Lenguaje:Inglés
Publicado: 1987
Materias:
Ciencias Exactas
Química
Gold electrodes
H atoms
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/119163
https://www.sciencedirect.com/science/article/abs/pii/0013468687900260
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-119163
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
Gold electrodes
H atoms
spellingShingle Ciencias Exactas
Química
Gold electrodes
H atoms
Martins, María Elisa
Podestá, José J.
Arvia, Alejandro Jorge
Chemical evidence of hydrogen sorption processes on potential cycled gold electrodes
topic_facet Ciencias Exactas
Química
Gold electrodes
H atoms
description Transient activation of polycrystalline gold electrodes for the hydrogen electrode reaction, produced either through potentiostatic or potentiodynamic treatment, is related to the adsorption of H atoms and its penetration into the bulk. Evidence for H atoms results from the application of silver crystal decoration technique. Hydrogen-loaded activated gold electrodes in contact with a soluble silver salt solution yield silver deposits which can be studied through conventional voltammetric stripping. The increase in activation for the HER correlates with the increase in the voltammetric contribution of 0 electroadsorption peak assigned to the (110) crystallographic face of gold. The development of a faceted surface structure with preferred orientation in the direction of the less dense atomic arrangement apparently favours the penetration of hydrogen into the bulk metal.
format Articulo
Articulo
author Martins, María Elisa
Podestá, José J.
Arvia, Alejandro Jorge
author_facet Martins, María Elisa
Podestá, José J.
Arvia, Alejandro Jorge
author_sort Martins, María Elisa
title Chemical evidence of hydrogen sorption processes on potential cycled gold electrodes
title_short Chemical evidence of hydrogen sorption processes on potential cycled gold electrodes
title_full Chemical evidence of hydrogen sorption processes on potential cycled gold electrodes
title_fullStr Chemical evidence of hydrogen sorption processes on potential cycled gold electrodes
title_full_unstemmed Chemical evidence of hydrogen sorption processes on potential cycled gold electrodes
title_sort chemical evidence of hydrogen sorption processes on potential cycled gold electrodes
publishDate 1987
url http://sedici.unlp.edu.ar/handle/10915/119163
https://www.sciencedirect.com/science/article/abs/pii/0013468687900260
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AT podestajosej chemicalevidenceofhydrogensorptionprocessesonpotentialcycledgoldelectrodes
AT arviaalejandrojorge chemicalevidenceofhydrogensorptionprocessesonpotentialcycledgoldelectrodes
bdutipo_str Repositorios
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