Estimation of the exchange current density and comparative analysis of morphology of electrochemically produced lead and zinc deposits

Nebojša D. Nikolić, Predrag M. Živković, Goran Branković, Miomir G. Pavlović

Abstract


The processes of lead and zinc electrodeposition from the very dilute electrolytes were compared by the analysis of polarization characteristics and by the scanning electron microscopic (SEM) analysis of the morphology of the deposits obtained in the galvanostatic regime of electrolysis. The exchange current densities for lead and zinc were estimated by comparison of experimentally obtained polarization curves with the simulated ones obtained for the different the exchange current density to the limiting diffusion current density ratios. Using this way for the estimation of the exchange current density, it is shown that the exchange current density for Pb was more than 1300 times higher than the one for Zn. In this way, it is confirmed that the Pb electrodeposition processes are considerably faster than the Zn electrodeposition processes. The difference in the rate of electrochemical processes was confirmed by a comparison of morphologies of lead and zinc deposits obtained at current densities which corresponded to 0.25 and 0.50 values of the limiting diffusion current densities.


Keywords


electrodeposition; lead; zinc; exchange current density; scanning electron microscope (SEM)

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References


R. Winand, Electrochim. Acta 39 (1994) 1091

V. M. Kozlov, L. Peraldo Bicelli, J. Cryst. Growth 203 (1999) 255

K. I. Popov, P. M. Živković, B. Jokić, N. D. Nikolić, J. Serb. Chem. Soc. 81 (2016) 291

N. D. Nikolić, P. M. Živković, J.D. Lović, G. Branković, J. Electroanal. Chem. 785 (2017) 65

J. O’M. Bockris, Z. Nagy, A. Damjanović, J. Electrochem. Soc. 119 (1972) 285

R. D. Naybour, Electrochim. Acta 13 (1968) 763

K. I. Popov, N. V. Krstajić, J. Appl. Electrochem. 13 (1983) 775

K.I. Popov, M.I. Čekerevac, Surf. Coat. Technol. 37 (1989) 435

K. I. Popov, M. G. Pavlović, B. N. Grgur, A. T. Dimitrov, S. Hadži-Jordanov, J. Appl. Electrochem. 28 (1998) 797

Z.-Li Xiao, C. Y. Han, W.-K. Kwok, H.-H. Wang, U. Welp, J. Wang, G. W. Crabtree, J. Am. Chem. Soc. 126 (2004) 2316

R. Y. Wang, D. W. Kirk, G. X. Zhang, J. Electrochem. Soc. 153 (2006) C357

C. -Z. Yao, M. Liu, P. Zhang, X. -H. He, G. -R. Li, W. -X. Zhao, P. Liu, Y. -X. Tong, Electrochim. Acta 54 (2008) 247

Y. Ni, Y. Zhang, J. Hong, CrystEngComm 13 (2011) 934

S. S. Djokić, N. D. Nikolić, P. M. Živković, K. I. Popov, N. S. Djokić, ECS Trans. 33 (18) (2011) 7

K. I. Popov, P. M. Živković, N. D. Nikolić, Int. J. Electrochem. Sci. 7 (2012) 686

C. Ding, C. Tian, R. Krupke, J. Fang, CrystEngComm 14 (2012) 875

N. D. Nikolić, K. I. Popov., P. M. Živković, G. Branković, J. Electroanal. Chem. 691 (2013) 66

R. Sivasubramanian, M. V. Sangaranarayanan, CrystEngComm 15 (2013) 2052

E. R. Ivanović, N. D. Nikolić, V. R. Radmilović, J. Serb. Chem. Soc. 80 (2015) 107

N. D. Nikolić, E. R. Ivanović, G. Branković, U. Č. Lačnjevac, S. I. Stevanović, J. S. Stevanović, M. G. Pavlović, Metall. Mater. Trans. B 46 (2015) 1760

N. D. Nikolić, K. I. Popov, E. R. Ivanović, G. Branković, S. I. Stevanović, P. M. Živković, J. Electroanal. Chem. 739 (2015) 137

A. Gavrilović-Wohlmuther, A. Laskos, Ch. Zelger, B. Gollas, A. Harding Whitehead, Journal of Energy and Power Engineering 9 (2015) 1019

N. D. Nikolić, P. M. Živković, S. I. Stevanović, G. Branković, J. Serb. Chem. Soc. 81 (2016) 553

K. I. Popov, S. S. Djokić, B. N. Grgur, Fundamental aspects of electrometallurgy, Kluwer Academic/Plenum Publishers, New York, 2002, p.p. 29–100

K. I. Popov, S. S. Djokić, N. D. Nikolić, V. D. Jović, Morphology of Electrochemically and Chemically Deposited Metals, Springer, New York, 2016, p.p. 25–109

N. D. Nikolić, V. M. Maksimović, G. Branković, P. M. Živković, M. G. Pavlović, J. Serb. Chem. Soc. 78 (2013) 1387

N. D. Nikolić, K. I. Popov, E. R. Ivanović, G. Branković, J. Serb. Chem. Soc. 79 (2014) 993

J. S. Newman, Electrochemical Systems, Prentice-Hall, Inc. Engelwood Cliffs, N. J., 1973, p. 177

K. I. Popov, P. M. Živković, N. D. Nikolić, The Effect of Morphology of Activated Electrodes on their Electrochemical Activity, in Electrodeposition: Theory and Practice, Series: Modern Aspects of Electrochemistry, S. S. Djokić, Ed., Vol. 48, Springer, 2010, p.p. 163–213

N. D. Nikolić, G. Branković, U. Č. Lačnjevac, J. Solid State Electrochem. 16 (2012) 2121

N. D. Nikolić, S. I. Stevanović, G. Branković, Trans. Nonferrous Met. Soc. China 26 (2016) 3274.




DOI: http://dx.doi.org/10.2298/JSC161114029N

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