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Optimization of electrolytic process of formation of open and porous copper electrodes by the pulsating current (PC) regime

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2011
Authors
Nikolić, Nebojša D.
Branković, Goran
Popov, Konstantin I.
Article (Published version)
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Abstract
Optimization of process of formation of open and porous copper electrodes, denoted as the honeycomb-like ones, by the regime of pulsating current (PC) is considered. The square-waves PC were consisted of the same amplitude current density and pause duration of 10 ms, while the analyzed deposition pulses were: 1, 4, 7, 10 and 20 ms. Morphologies of electrodeposited copper and the quantities of evolved hydrogen during electrodeposition processes were compared with the surface morphology and the quantity of evolved hydrogen obtained by copper electrodeposition in the galvanostatic mode. In galvanostatic mode, electrodeposition of copper was performed at a current density which corresponded to the amplitude current density in the PC regimes. Honeycomb-like deposits were formed at the constant current density and by the PC regimes with deposition pulses of 7, 10 and 20 ms. The mixture of holes constructing the honeycomb-like structure and dish-like holes was obtained with a deposition pulse... of 4 ms. Finally, dish-like holes were only formed with a deposition pulse of 1 ms. The change of the shape of holes was discussed by the change of hydrodynamic conditions in the near-electrode layer caused by evolved hydrogen. The specific energy consumption in the PC regimes of electrolysis was also discussed. Analysis of the specific energy consumption showed that energy saving of about 15% can be attained in the production of honeycomb-like electrodes by the choice of the appropriate PC regime.

Keywords:
Microporous materials / Crystal growth / Electrochemical techniques / Microstructure
Source:
Materials Chemistry and Physics, 2011, 125, 3, 587-594
Publisher:
  • Elsevier Science Sa, Lausanne
Funding / projects:
  • Electrochemical synthesis and characterization of nanostructured functional materials for application in new technologies (RS-172046)

DOI: 10.1016/j.matchemphys.2010.10.013

ISSN: 0254-0584

WoS: 000286904800043

Scopus: 2-s2.0-78650016924
[ Google Scholar ]
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28
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/922
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - JOUR
AU  - Nikolić, Nebojša D.
AU  - Branković, Goran
AU  - Popov, Konstantin I.
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/922
AB  - Optimization of process of formation of open and porous copper electrodes, denoted as the honeycomb-like ones, by the regime of pulsating current (PC) is considered. The square-waves PC were consisted of the same amplitude current density and pause duration of 10 ms, while the analyzed deposition pulses were: 1, 4, 7, 10 and 20 ms. Morphologies of electrodeposited copper and the quantities of evolved hydrogen during electrodeposition processes were compared with the surface morphology and the quantity of evolved hydrogen obtained by copper electrodeposition in the galvanostatic mode. In galvanostatic mode, electrodeposition of copper was performed at a current density which corresponded to the amplitude current density in the PC regimes. Honeycomb-like deposits were formed at the constant current density and by the PC regimes with deposition pulses of 7, 10 and 20 ms. The mixture of holes constructing the honeycomb-like structure and dish-like holes was obtained with a deposition pulse of 4 ms. Finally, dish-like holes were only formed with a deposition pulse of 1 ms. The change of the shape of holes was discussed by the change of hydrodynamic conditions in the near-electrode layer caused by evolved hydrogen. The specific energy consumption in the PC regimes of electrolysis was also discussed. Analysis of the specific energy consumption showed that energy saving of about 15% can be attained in the production of honeycomb-like electrodes by the choice of the appropriate PC regime.
PB  - Elsevier Science Sa, Lausanne
T2  - Materials Chemistry and Physics
T1  - Optimization of electrolytic process of formation of open and porous copper electrodes by the pulsating current (PC) regime
VL  - 125
IS  - 3
SP  - 587
EP  - 594
DO  - 10.1016/j.matchemphys.2010.10.013
ER  - 
@article{
author = "Nikolić, Nebojša D. and Branković, Goran and Popov, Konstantin I.",
year = "2011",
abstract = "Optimization of process of formation of open and porous copper electrodes, denoted as the honeycomb-like ones, by the regime of pulsating current (PC) is considered. The square-waves PC were consisted of the same amplitude current density and pause duration of 10 ms, while the analyzed deposition pulses were: 1, 4, 7, 10 and 20 ms. Morphologies of electrodeposited copper and the quantities of evolved hydrogen during electrodeposition processes were compared with the surface morphology and the quantity of evolved hydrogen obtained by copper electrodeposition in the galvanostatic mode. In galvanostatic mode, electrodeposition of copper was performed at a current density which corresponded to the amplitude current density in the PC regimes. Honeycomb-like deposits were formed at the constant current density and by the PC regimes with deposition pulses of 7, 10 and 20 ms. The mixture of holes constructing the honeycomb-like structure and dish-like holes was obtained with a deposition pulse of 4 ms. Finally, dish-like holes were only formed with a deposition pulse of 1 ms. The change of the shape of holes was discussed by the change of hydrodynamic conditions in the near-electrode layer caused by evolved hydrogen. The specific energy consumption in the PC regimes of electrolysis was also discussed. Analysis of the specific energy consumption showed that energy saving of about 15% can be attained in the production of honeycomb-like electrodes by the choice of the appropriate PC regime.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Materials Chemistry and Physics",
title = "Optimization of electrolytic process of formation of open and porous copper electrodes by the pulsating current (PC) regime",
volume = "125",
number = "3",
pages = "587-594",
doi = "10.1016/j.matchemphys.2010.10.013"
}
Nikolić, N. D., Branković, G.,& Popov, K. I.. (2011). Optimization of electrolytic process of formation of open and porous copper electrodes by the pulsating current (PC) regime. in Materials Chemistry and Physics
Elsevier Science Sa, Lausanne., 125(3), 587-594.
https://doi.org/10.1016/j.matchemphys.2010.10.013
Nikolić ND, Branković G, Popov KI. Optimization of electrolytic process of formation of open and porous copper electrodes by the pulsating current (PC) regime. in Materials Chemistry and Physics. 2011;125(3):587-594.
doi:10.1016/j.matchemphys.2010.10.013 .
Nikolić, Nebojša D., Branković, Goran, Popov, Konstantin I., "Optimization of electrolytic process of formation of open and porous copper electrodes by the pulsating current (PC) regime" in Materials Chemistry and Physics, 125, no. 3 (2011):587-594,
https://doi.org/10.1016/j.matchemphys.2010.10.013 . .

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