Producción Científica Profesorado

Influence of the Crystallinity of the Substrate on Kinetic Parameters of Zinc Electrodeposition Process



Mendoza Huizar, Luis Humberto

2010

Influence of the crystallinity of the substrate on kinetic parametrs of zinc electrodeposition process. MAdai Granados Neri. L.H. Mendoza-Huizar. ECS Transactions ECS Transactions (2010) Volume 29, pp- 145-153 ISSN: 1938-586. DOI: http://dx.doi.org/10.1149/1.3532312


Abstract


The influence of the crystallinity of the carbon substrate on kinetic parameters was investigated by mean electrochemical techniques such as cyclic voltammetry and chronoamperometry from an electrolytic bath 0.01M ZnSO4 + 1M (NH4)2SO4 onto GCE and HOPG work electrodes. It was found that the predominant redox couple was [ZnSO4(H2O)5]/Zn{degree sign} in our experimental conditions. Furthermore, the electrochemical study indicated the existence of a progressive nucleation mechanism and 3D growth of the zinc electrodeposition. The parameters kinetic, such as nucleation rate and active sites number, showed that the zinc electrodeposition was more favored onto GCE than onto HOPG.



Producto de Investigación




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