Producción Científica Profesorado

Kinetical study about the cobalt electrodeposition onto polycrystalline platinum



Mendoza Huizar, Luis Humberto

2013

Rios-Reyes, C.H., Mendoza-Huizar L.H., Reyes-Cruz V.E, Veloz Rodríguez, M.A., Kinetical study about the cobalt electrodeposition onto polycrystalline platinum. Quimica Nova, 36, 7, 2013.


Abstract


Resumen: In the present work, the cobalt electrodeposition onto polycrystalline gold electrodes from aqueous solutions containing 0.01M CoSO4+ 1 M (NH4)2SO4 at pH=7 was analyzed. Linear voltammetry results suggested a change in the kinetic of the cobalt electrodeposition. In all cases, the nucleation rate (A), the number of active nucleation sites (N 0) and the saturation number of nuclei (N s ) values were potential dependent. The calculated Gibbs free energy (?G) for this system was 1.88×10?20 J nuclei?1 and the transfer coefficient for the Hydrogen Electroreduction Reaction (HER) was 0.47.



Producto de Investigación




Artículos relacionados

Cobalt electrodeposition onto highly oriented pyrolytic graphite (HOPG) electrode from ammonium sulf...

Chemical Reactivity of Atrazine Employing the Fukui Function

Nucleation and growth of cobalt onto different substrates: Part II. The upd-opd transition onto a go...

Analysis of the experimental pressuretemperature behavior in the isotropicnematic phase transition f...

Nucleation and Growth Kinetics of Electrodeposited Sulfate-Doped Polypyrrole: Determination of the D...

Efecto de la composición del soporte sobre las estructuras superficiales de óxidos de níquel y molib...

THEORETICAL STUDY ON THE MODIFICATION OF ACTIVE SITES IN GOLD SURFACES MODELED AS FINITE CLUSTERS: I...

Underpotential deposition of cobalt onto polycrystalline platinum

Effect of TiO2-Al2O3 sol-gel supports on the superficial Ni and Mo species in oxidized and sulfided ...

A theoretical quantum study on the distribution of electrophilic and nucleophilic active sites on th...