Artículo
A feasible kinetic model for the hydrogen oxidation on ruthenium electrodes
Fecha de publicación:
07/2010
Editorial:
Pergamon-Elsevier Science Ltd
Revista:
Electrochimica Acta
ISSN:
0013-4686
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The hydrogen oxidation reaction (hor) was studied on a polycrystalline ruthenium electrode in H2SO4 solution at different rotation rates (ω). The experimental polarization curves recorded on steady state show the existence of a maximum current with a non-linear dependence of the current density on ω1/2. On the basis of the Tafel-Heyrovsky-Volmer kinetic mechanism, coupled with a process of inhibition of active sites by the reversible electroadsorption of hydroxyl species, it was possible to appropriately describe the origin of the maximum current. The corresponding set of kinetic parameters was also calculated from the correlation of the experimental results with the proposed kinetic model.
Palabras clave:
ELECTROCATALYTIC ACTIVITY
,
HYDROGEN OXIDATION
,
KINETIC PARAMETERS
,
RUTHENIUM
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CCT - SANTA FE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - SANTA FE
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - SANTA FE
Citación
Rau, M.S.; Gennero, Maria Rosa; Chialvo, Abel Cesar; A feasible kinetic model for the hydrogen oxidation on ruthenium electrodes; Pergamon-Elsevier Science Ltd; Electrochimica Acta; 55; 17; 7-2010; 5014-5018
Compartir
Altmétricas