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

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

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

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

Mercury Ions Removal from Aqueous Solution Using an Activated Composite Membrane

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

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

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

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

Synthesis, Characterization and Catalytic Activity of Supported NiMo Catalysts

Synthesis and crystal structures of cis-palladium(II) and cis-platinum(II) complexes containing di...