Producción Científica Profesorado

ELECTROCHEMICAL STUDY ABOUT ZINC ELECTRODEPOSITION ONTO GCE AND HOPG SUBSTRATES



Mendoza Huizar, Luis Humberto

2011

Electrochemical Study About Zinc Electrodeposition Onto Gce And Hopg Substrates. Madai Granados-Neri, Luis Humberto Mendoza Huizar y Clara Hilda Rios-Reyes Quim. Nova. Preprinted


Abstract


We carried out an electrochemical study about zinc electrodeposition onto GCE and HOPG substrates from an electrolytic plating bath containing 0.01M ZnSO4 + 1M (NH4)2SO4 at pH 7. Under our experimental conditions the predominant chemical species was the complex [ZnSO4(H2O)5]. The chronoamperometric study showed that zinc electrodeposition follows a typical 3D nucleation mechanism in both substrates. The average ?G calculated for the stable nucleus formation was 6.92 x 10-21 J nuclei?1 and 1.35 x 10-20 J nuclei?1 for GCE and HOPG, respectively. The scanning electron microscopy (SEM) images showed different nucleation and growth processes on GCE and HOPG substrates at same overpotential.



Producto de Investigación




Artículos relacionados

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

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

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

Análisis del Comportamiento Presión-Temperatura en la Transición Isotrópico-Nemático del p-Azoxianis...

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 of Zn compounds derived from 1H-benzimidazol-2-ylmethanamine

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

Copper Electrodeposition On Glassy Carbon And Highly Oriented Pyrolytic Graphite Substrates From Per...

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