Producción Científica Profesorado

Zinc Electrodeposition from Chloride Solutions onto Glassy Carbon Electrode

Mendoza Huizar, Luis Humberto


9. Zinc electrodeposition from chloride solutions onto glassy carbon electrode. L. H. Mendoza-Huizar, C.H. Rios-Reyes, M. G. Gómez-Villegas. Journal of Mexican Chemical Society. Vol. 53, No. 4, pp. 243-247, (2009). ISSN 1870-249X


An electrochemical study of zinc deposition was carried out in baths containing 0.5 M ZnCl2 and 0.4 M H3BO3. From the voltammetric study it was found that, in our experimental conditions, zinc electrodeposition is quasi-reversible and occurs under charge transfer control. The average coefficient diffusion calculated was D = 7.14 × 10-6 cm2s-1 while the standard constant at electrode charge was 8.78 × 10-3 cms-1. The nucleation and growth parameters determinedfrom the potentiostatic study showed that, at bigger overpotentials, a vertical growth is favored, suggesting a dendritic growth. The critical clusters size calculated was 2, indicating that each active site is formed by two zinc atoms on the glassy carbon electrode (GCE) surface, while the ?G for the formation of stable nucleus was 1.35 × 10-20 J/nuclei. The Scanning Electron Microscopy images showed thin platelets of hexagonal crystals and dendrites at lower and higher overpotentials applied, respectively.

Producto de Investigación

Artículos relacionados

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

Do Spiroarsoranes Exhibit Polytopal Equilibrium in Solution?

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

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

Potentiometric behavior of graphite-epoxy electrochemical transducers towards anions, cations and pH...

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

Influence of the Cation Nature of the Sulphate Salt on the Electrochemical Synthesis of Sulfate-Dope...

The role of temperature in copper electrocrystallization in ammoniachloride solutions

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

Chemical Reactivity of Atrazine Employing the Fukui Function