Producción Científica Profesorado

A kinetic and AFM study of the Electrodeposition of Palladium Nanoclusters onto Highly Oriented Pyrolitic Graphite (HOPG).



Galan Vidal, Carlos Andres

2015

A kinetic and AFM study of the Electrodeposition of Palladium Nanoclusters onto Highly Oriented Pyrolitic Graphite (HOPG). L. H. Mendoza-Huizar, D. Garrido-Marquez, C.H. Rios-Reyes, M. Rivera, E. García-Sánchez, C. Galán-Vidal. Journal Cluster Science. 26, pp 337-346, 2015. DOI: 10.1007/s10876-014-0837-7Print ISSN 1040-7278, Online ISSN 1572-8862


Abstract


In the present work we have carried out a kinetic and morphological study of the palladium electrodeposition onto highly oriented pyrolitic graphite electrode from an aqueous solution [0.001 M PdCl2 + 1 M NH4Cl (pH 7)]. From the potentiostatic study were calculated the diffusion coefficient (3.2 × 10?6 cm2 s?1), the number of active nucleation sites (N 0), the nucleation rate (A) and the rate constant of the proton reduction process (k PR). A, N 0 and k PR values were potential dependent and they increased with an augment in the applied overpotential. At higher overpotential, it is possible to induce the formation of small Pd clusters with 5 nm in height and an average size of 20?30 nm in diameter.



Producto de Investigación




Artículos relacionados

Magnetic transition phase diagram of cobalt clusters electrodeposited on HOPG: Experimental and micr...

Cobalt Electrodeposition Process from Electrolytic Baths based on CoSO4 and (NH4)2SO4. Influence of ...

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

Evaluación de Esteroides Aromáticos como Indicadores de Madurez Térmica en Extractos de Roca

A Semiempirical PM6 Study of Some Aminopyrimidine Derivatives and their Interaction with an Iron Sur...

Mercury Ions Removal from Aqueous Solution Using an Activated Composite Membrane

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

Estudio de las Interacciones Ácido Húmico-Metales Pesados y Determinación de sus Constantes de Estab...

Chemical Reactivity of Atrazine Employing the Fukui Function

Hydrogen bond studies in substituted N-(2-hydroxyphenyl)--2-[(4-methylbenzenesulfonyl)amino]acetamid...