English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/11295
Compartir / Impacto:
Add this article to your Mendeley library MendeleyBASE
Citado 6 veces en Web of Knowledge®  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar otros formatos: Exportar EndNote (RIS)Exportar bibText (RIS)Exportar csv (RIS)

Effect of carbon support on the kinetic behaviour of a metal hydride electrode

Autor Thomas, J. E.; Andreasen, G.; Arenillas de la Puente, Ana ; Zubizarreta, Leire ; Barath, P.; Sedlaříková, M.; Vondrak, J.; Visintin, A.
Palabras clave Hydrogen
Hydride alloys
Carbon nanotubes
Fecha de publicación 28-feb-2009
Citación Electrochimica Acta 54(7): 2010-2017 (2009)
ResumenThe possibility to improve the electrochemical behaviour of AB5-alloy commercial electrodes was studied using different carbons as support, such as carbon blacks and a selection of commercial and in-lab synthesised carbon nanotubes. The carbons selected for this work present different morphologies (i.e., spherical and tubular). Furthermore, they also present a variation of the porous structure and subsequent surface area, which are also going to influence their further electrochemical behaviour. Carbon samples were texturally characterised by the adsorption–desorption of N2 and CO2 at 77 and 273 K, respectively. The carbon structure was analysed by XRD, Raman, TEM, and the chemistry of the samples was also characterised by elemental analysis. The charge and discharge techniques, cyclic voltammetry, rate capability and linear polarisation were used for the electrochemical characterisation of the electrodes studied. The electrochemical behaviour of all the samples was related to their morphological, textural and chemical properties. The results show that there is a clear influence of the nature of the carbon support on the hydriding/dehydriding reaction of the alloy, and in the case of active carbons the kinetics decreases with the increase of the surface area of the carbon support.
Descripción 8 pages, 13 figures.-- Available online Sep 9, 2008.-- Issue title: Electrochemistry for a healthy planet: environmental, analytical and engineering aspects: Selection of papers from the 6th ISE Spring Meeting, Foz do Iguaçu, Brazil, Mar 16-19, 2008.
Versión del editorhttp://dx.doi.org/10.1016/j.electacta.2008.08.061
URI http://hdl.handle.net/10261/11295
Aparece en las colecciones: (INCAR) Artículos
Ficheros en este ítem:
No hay ficheros asociados a este ítem.
Mostrar el registro completo

NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.