Effect of the electrolysis regime on the structural characteristics of honeycomb-like electrodes

Authors

  • Nebojsa D. Nikolic ICTM-Institute of Electrochemistry, University of Belgrade
  • Goran Branković Institute for Multidisciplinary Research, University of Belgrade, Kneza Višeslava 1a, Belgrade
  • Miomir G. Pavlović ICTM - Institute of Electrochemistry, University of Belgrade, Belgrade

DOI:

https://doi.org/10.20450/mjcce.2013.112

Keywords:

copper, electrodeposition, morphology, hydrogen bubbles, dendrite.

Abstract

The effect of different current regimes of electrolysis on the micro- and nanostructural characteristics of open porous structures was examined by the analysis of honeycomb-like copper electrodes obtained by constant galvanostatic (DC) electrodeposition and by regimes of pulsating (PC) and reversing (RC) current. An increase in the number of holes formed by detached hydrogen bubbles, the decrease in wall width between holes and changes in surface morphology around holes from cauliflower-like agglomerates of copper grains to dendrites were observed in the following order: the DC, PC and RC regime. The hole size formed in the RC regime was smaller than the hole size formed in the DC and PC regimes. Analysis of the obtained structural characteristics showed that the specific surface area of the honeycomb-like electrodes was increased by the application of the PC and RC regimes in relation to the DC regime.

References

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Published

2013-06-15

How to Cite

Nikolic, N. D., Branković, G., & Pavlović, M. G. (2013). Effect of the electrolysis regime on the structural characteristics of honeycomb-like electrodes. Macedonian Journal of Chemistry and Chemical Engineering, 32(1), 79–87. https://doi.org/10.20450/mjcce.2013.112

Issue

Vol. 32 No. 1 (2013)

Section

Electrochemistry

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