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

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2017
2127.pdf (8.911Mb)
Authors
Nikolić, Nebojša D.
Živković, Predrag M.
Branković, Goran
Pavlović, Miomir
Article (Published version)
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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 d...ensities 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)
Source:
Journal of the Serbian Chemical Society, 2017, 82, 5, 539-550
Publisher:
  • Serbian Chemical Society
Funding / projects:
  • Electrochemical synthesis and characterization of nanostructured functional materials for application in new technologies (RS-172046)

DOI: 10.2298/JSC161114029N

ISSN: 0352-5139

WoS: 000408085400006

Scopus: 2-s2.0-85021762542
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4
4
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/2129
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - JOUR
AU  - Nikolić, Nebojša D.
AU  - Živković, Predrag M.
AU  - Branković, Goran
AU  - Pavlović, Miomir
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2129
AB  - 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.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Estimation of the exchange current density and comparative analysis of morphology of electrochemically produced lead and zinc deposits
VL  - 82
IS  - 5
SP  - 539
EP  - 550
DO  - 10.2298/JSC161114029N
ER  - 
@article{
author = "Nikolić, Nebojša D. and Živković, Predrag M. and Branković, Goran and Pavlović, Miomir",
year = "2017",
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.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Estimation of the exchange current density and comparative analysis of morphology of electrochemically produced lead and zinc deposits",
volume = "82",
number = "5",
pages = "539-550",
doi = "10.2298/JSC161114029N"
}
Nikolić, N. D., Živković, P. M., Branković, G.,& Pavlović, M.. (2017). Estimation of the exchange current density and comparative analysis of morphology of electrochemically produced lead and zinc deposits. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 82(5), 539-550.
https://doi.org/10.2298/JSC161114029N
Nikolić ND, Živković PM, Branković G, Pavlović M. Estimation of the exchange current density and comparative analysis of morphology of electrochemically produced lead and zinc deposits. in Journal of the Serbian Chemical Society. 2017;82(5):539-550.
doi:10.2298/JSC161114029N .
Nikolić, Nebojša D., Živković, Predrag M., Branković, Goran, Pavlović, Miomir, "Estimation of the exchange current density and comparative analysis of morphology of electrochemically produced lead and zinc deposits" in Journal of the Serbian Chemical Society, 82, no. 5 (2017):539-550,
https://doi.org/10.2298/JSC161114029N . .

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