INIFTA 05425
INSTITUTO DE INVESTIGACIONES FISICO-QUIMICAS TEORICAS Y APLICADAS
Unidad Ejecutora - UE
artículos
Título:
ELECTROCHEMICAL ACTIVATION AND ELECTROCATALYTIC ENHANCEMENT OF AN HYDRIDE-FORMING METAL ALLOY MODIFIED WITH PALLADIUM, PLATINUM AND NICKEL
Autor/es:
A. VISINTIN; E.B. CASTRO; S.G. REAL; W. E. TRIACA; C. WANG; M.P. SORIAGA
Revista:
ELECTROCHIMICA ACTA
Editorial:
Elsevier Science
Referencias:
Año: 2006 vol. 51 p. 3658 - 3667
ISSN:
0013-4686
Resumen:
Abstract: In this paper, the effects of Pt, Pd and Ni powder addition into metal-hydride electrodes, on the activation process, rate capability and cycling stability were studied. The addition of metal powder improves the activation rate and diminishes the overpotentials for charge and discharge. The electrochemical behaviour of these electrodes was analysed in terms of a simplified form of a previously developed model. Electrochemical impedance spectroscopy measurements allow the validation of the model and the identification of kinetic and physicochemical parameters.
