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The shape of the polarization curve and diagnostic criteria for control of the metal electrodeposition process

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Authors
Popov, Konstantin I.
Živković, Predrag M.
Jokić, Bojan
Nikolić, Nebojša D.
Article (Published version)
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Abstract
The simulated shapes of the polarization curves were correlated with the type of metal electrodeposition process control as a function of the ratio of the exchange current density to the limiting diffusion current density (j(0)/j(L)). Diagnostic criteria based on the j(0)/j(L) ratios were established. For j(0)/j(L) > 100, the system is under the ohmic control. In the range 1 LT j(0)/j(L) LT = 100, there is mixed ohmic-diffusion control. Pure diffusion control appears in the range 0.1 LT j(0)/j(L) LT = 1. For j(0)/j(L) LT = 0.1, the system is activation controlled at low overpotentials. The proposed diagnostic criteria were verified by comparison of the simulated curves with experimentally recorded ones and by morphological analysis of deposits obtained under the different types of control of the metal electrodeposition process.
Keywords:
lead / zinc / copper / simulation / morphology / scanning electron microscopy
Source:
Journal of the Serbian Chemical Society, 2016, 81, 3, 291-306
Publisher:
  • Serbian Chemical Society
Projects:
  • Electrochemical synthesis and characterization of nanostructured functional materials for application in new technologies (RS-172046)

DOI: 10.2298/JSC150717076P

ISSN: 0352-5139

WoS: 000375398500007

Scopus: 2-s2.0-84971520492
[ Google Scholar ]
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URI
http://cer.ihtm.bg.ac.rs/handle/123456789/2006
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