Producción Científica Profesorado

Nucleation and growth of cobalt onto different substrates: Part I. Underpotential deposition onto a gold electrode



Mendoza Huizar, Luis Humberto

2002

Nucleation and Growth of Cobalt onto different Substrates. Part I Underpotential Deposition onto a Gold Electrode. L.H Mendoza-Huizar, J Robles, M Palomar-Pardavé. http://dx.doi.org/10.1016/S0022-0728(02)00659-9


Abstract


The formation and stripping of a cobalt adlayer were studied by electrochemical techniques at underpotential conditions, monitoring the deposition/dissolution onto/from a polycrystalline gold electrode. The kinetics of the former process fit a model where adsorption and diffusion-controlled two-dimensional instantaneous nucleation of cobalt occurs simultaneously onto the gold electrode surface. The latter involves a complex mechanism where adsorption/desorption competes with two processes, an instantaneous nucleation and growth of two-dimensional holes under charge transfer control and a progressive one. However, it was found that the relative contribution of the instantaneous nucleation was the most important independently of the applied potential.



Producto de Investigación




Artículos relacionados

Kinetic study of the cobalt electrodeposition onto glassy carbon electrode from ammonium sulfate sol...

Kinetics of Polypyrrole Films Doped with Sulphate Ions Electrodeposited Over Graphite - Epoxy Resin ...

Characterization of Main Anthocyanins Extracted from Pericarp Blue Corn by MALDI-ToF MS

Synthesis, Characterization and Catalytic Activity of Supported NiMo Catalysts

Bioacumulación y daños genotóxicos en Pez Cebra (Danio rerio) por arsénico en aguas de Zimapán, Hida...

Electrochemical kinetic study about cobalt electrodeposition onto GCE and HOPG substrates from sulfa...

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

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

Theoretical and Experimental Study of Cobalt Nucleation and Growth onto Gold Substrate with Differen...

Revisión de variables de diseño y condiciones de operación en la electrocoagulación