Producción Científica Profesorado


Mendoza Huizar, Luis Humberto


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


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

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