Abstract
The initial stages of both Zn–Co and Zn electrodeposition were investigated by electrochemical quartz crystal microgravimetry (EQCM). The initial electrode mass growth, determined under both pulse and constant current conditions, was much higher than predicted by Faraday's law. This was explained in terms of the precipitation of scarcely soluble compounds of zinc on an electrode surface. The EQCM data confirm that the hydroxide suppression mechanism explains the anomalous Zn and Co codeposition. A nonuniform adsorption of brightener (benzalaceton) on the profiled surface was concluded on the basis of plating distribution investigations. The additive adsorbs to a greater extent on the surface projections.
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References
T. Adaniya, M. Omura, K. Matsudo and H. Naemura, Plat. Surf. Finish. 68 (1981) 96.
E. Knaak, H. Köhler and J. Hadley, Metalloberfläche 39 (1985) 139.
W. Siegert and J. Hadley, ibid. 43 (1989) 78.
E. Grünwald, A. Ziman, Cs. Várhelyi and Cs. Juhos, Galvanotechnik 85 (1994) 3274.
J. R. Vilche, K. Jüttner, W. J. Lorenz, W. Kautek, W. Paatsch, M. H. Dean and U. Stimming, J. Electrochem. Soc. 138 (1989) 3773.
W. Kautek, M. Sahre and W. Paatsch, Electrochim. Acta 39 (1994) 1151.
A. Brenner, ‘Electrodeposition of Alloys’, Vol. 1, Academic Press, New York (1963), p. 75.
K. Higashi, H. Fukushima, T. Urakawa, T. Adaniya and K. Matsudo, J. Electrochem. Soc. 128 (1981) 2081.
R. Fratesi and G. Roventi, Mater. Chem. Phys. 23 (1989) 529.
H.-M. Wang and T. J. O'Keefe, J. Appl. Electrochem. 24 (1994) 900.
E. Gómez and E. Vallés, J. Electroanal Chem. 397 (1995) 177.
M. J. Nicol and H. I. Philip, ibid. 70 (1976) 233.
M. F. Mathias and T. W. Chapman, J. Electrochem. Soc. 134 (1987) 1408.
D. Landolt, Electrochim. Acta 39 (1994) 1075.
Yu. M. Loshkarev, V. I. Korobov, V. V. Trofimenko and F. A. Chmilenko, Protection of Metals 30 (1994) 79.
H. Dahms and I. M. Croll, J. Electrochem. Soc. 112 (1965) 771.
H. Yan, J. Downes, P. J. Boden and S. J. Haris, ibid. 143 (1996) 1577.
W. Paatsch, Metalloberfläche 41 (1987) 39.
G. Bikulčius, E. Juzeliūnas, A. Stankevičiūtė, J. Adv. Mater. 4 (1996) 80.
E. Juzeliūnas, P. Kalinauskas, P. Miečinskas, J. Electrochem. Soc. 143 (1996) 1525.
US Patent 3 808 110 (1974).
British patent 2 160 223 A (1988).
L. Grincevičienė, G. Bernotienė, D. Mockutė and S. Jakobson, in ‘Materials of 9th meeting of Lithuanian electrochemists’, Vilnius (1983), p. 93.
A. Stankevičiūtė, K. Leinartas and E. Juzeliūnas, unpublished data.
G. Sauerbrey, Z. Phys. 155 (1959) 206.
H. Kaesche, ‘Die Korrosion der Metalle’, Springer-Verlag, Berlin (1990).
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StankeviČiu¯tĖ, A., Leinartas, K., BikulČius, G. et al. Deposition of Zn–Co by constant and pulsed current. Journal of Applied Electrochemistry 28, 89–95 (1998). https://doi.org/10.1023/A:1003206019963
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DOI: https://doi.org/10.1023/A:1003206019963