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

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

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.

Xingpeng Guo | G. Feng | Daobing Huang | J. Cai | Y. Tu

[1] V. Lins,et al. Crystallographic texture and morphology of an electrodeposited zinc layer , 2006 .

[2] M. Golozar,et al. Texture and surface morphology in zinc electrodeposits , 2004 .

[3] D. Salinas,et al. Nucleation and growth of Zn on HOPG in the presence of gelatine as additive , 2004 .

[4] M. Golozar,et al. Effect of nucleation mode on the morphology and texture of electrodeposited zinc , 2003 .

[5] L. Heerman,et al. Theory of the chronoamperometric transient for electrochemical nucleation with diffusion-controlled growth , 1999 .

[6] A. Milchev. Electrochemical nucleation on active sites—what do we measure in reality? Part II , 1998 .

[7] T. O’keefe,et al. Nucleation and growth of zinc electrodeposited from acidic zinc solutions , 1987 .

[8] M. Pavlović,et al. Deposition of zinc of foreign substrates , 1982 .