Influence of Additive on Morphology and Nucleation Mechanism for Zn-Electrodeposition

Abstract:

In this study, the influence of sodium dodecylbenzenesulfonate (SDBS) as additive on the morphology and nucleation mechanism for zinc electrodeposition on steel sheet was investigated using scanning electron microscopy (SEM) and potentiostatic electrochemical techniques. From the analysis of the chronoamperometric transients and the SEM images, an instantaneous nucleation with 3D growth has been proposed in both baths with and without SDBS. It was found that the morphology of zinc electrodeposits varied from initial thin-layered hexagonal plates to a finer ridge and needle morphologies with increasing the overpotential as SDBS was added in the bath solution.

• Periodical: Advanced Materials Research (Volumes 941-944)
• Pages: 1654-1658
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.941-944.1654
• Online since: June 2014
• Authors: Dao Bing Huang*, Yuan Qiang Tu, Jie Cai, Guan Wen Feng, Xing Peng Guo
• Keywords: Additive, Electrodeposition, Nucleation Model, Sulphate Bath

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