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Correlate between morphology of powder particles obtained by the different regimes of electrolysis and the quantity of evolved hydrogen

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2012
Authors
Nikolić, Nebojša D.
Branković, Goran
Pavlović, Miomir
Article (Published version)
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Abstract
Morphologies of copper powder particles obtained by both potentiostatic and pulsating overpotential (PO) regimes of electrolysis were investigated by the technique of scanning electron microscopy (SEM). Particles of dendritic or cauliflower-like shape were formed in the dependence of the selected parameters of square-waves PO. The obtained particles were compared with those obtained in the constant potentiostatic regime from solutions of different CuSO4 and H2SO4 concentrations. It was shown that the effect of the decreasing deposition pulse was equivalent to the increasing CuSO4 concentration. Pause duration was equivalent to the used concentration of H2SO4, while the overpotential amplitude in the PO regime corresponded to the overpotential of electrodeposition in the constant potentiostatic mode. Morphologies of powdered deposits were grouped in the three hydrogen co-deposition ranges and their formation was discussed in the dependence of the quantity of hydrogen generated at the ca...thode surface during electrochemical deposition processes.

Keywords:
Powder particles / Copper / Electrolysis / Scanning electron microscope (SEM) / Hydrogen evolution
Source:
Powder Technology, 2012, 221, 271-277
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.powtec.2012.01.014

ISSN: 0032-5910

WoS: 000303222300034

Scopus: 2-s2.0-84858616216
[ Google Scholar ]
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URI
https://cer.ihtm.bg.ac.rs/handle/123456789/941
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - JOUR
AU  - Nikolić, Nebojša D.
AU  - Branković, Goran
AU  - Pavlović, Miomir
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/941
AB  - Morphologies of copper powder particles obtained by both potentiostatic and pulsating overpotential (PO) regimes of electrolysis were investigated by the technique of scanning electron microscopy (SEM). Particles of dendritic or cauliflower-like shape were formed in the dependence of the selected parameters of square-waves PO. The obtained particles were compared with those obtained in the constant potentiostatic regime from solutions of different CuSO4 and H2SO4 concentrations. It was shown that the effect of the decreasing deposition pulse was equivalent to the increasing CuSO4 concentration. Pause duration was equivalent to the used concentration of H2SO4, while the overpotential amplitude in the PO regime corresponded to the overpotential of electrodeposition in the constant potentiostatic mode. Morphologies of powdered deposits were grouped in the three hydrogen co-deposition ranges and their formation was discussed in the dependence of the quantity of hydrogen generated at the cathode surface during electrochemical deposition processes.
PB  - Elsevier Science Sa, Lausanne
T2  - Powder Technology
T1  - Correlate between morphology of powder particles obtained by the different regimes of electrolysis and the quantity of evolved hydrogen
VL  - 221
SP  - 271
EP  - 277
DO  - 10.1016/j.powtec.2012.01.014
ER  - 
@article{
author = "Nikolić, Nebojša D. and Branković, Goran and Pavlović, Miomir",
year = "2012",
abstract = "Morphologies of copper powder particles obtained by both potentiostatic and pulsating overpotential (PO) regimes of electrolysis were investigated by the technique of scanning electron microscopy (SEM). Particles of dendritic or cauliflower-like shape were formed in the dependence of the selected parameters of square-waves PO. The obtained particles were compared with those obtained in the constant potentiostatic regime from solutions of different CuSO4 and H2SO4 concentrations. It was shown that the effect of the decreasing deposition pulse was equivalent to the increasing CuSO4 concentration. Pause duration was equivalent to the used concentration of H2SO4, while the overpotential amplitude in the PO regime corresponded to the overpotential of electrodeposition in the constant potentiostatic mode. Morphologies of powdered deposits were grouped in the three hydrogen co-deposition ranges and their formation was discussed in the dependence of the quantity of hydrogen generated at the cathode surface during electrochemical deposition processes.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Powder Technology",
title = "Correlate between morphology of powder particles obtained by the different regimes of electrolysis and the quantity of evolved hydrogen",
volume = "221",
pages = "271-277",
doi = "10.1016/j.powtec.2012.01.014"
}
Nikolić, N. D., Branković, G.,& Pavlović, M.. (2012). Correlate between morphology of powder particles obtained by the different regimes of electrolysis and the quantity of evolved hydrogen. in Powder Technology
Elsevier Science Sa, Lausanne., 221, 271-277.
https://doi.org/10.1016/j.powtec.2012.01.014
Nikolić ND, Branković G, Pavlović M. Correlate between morphology of powder particles obtained by the different regimes of electrolysis and the quantity of evolved hydrogen. in Powder Technology. 2012;221:271-277.
doi:10.1016/j.powtec.2012.01.014 .
Nikolić, Nebojša D., Branković, Goran, Pavlović, Miomir, "Correlate between morphology of powder particles obtained by the different regimes of electrolysis and the quantity of evolved hydrogen" in Powder Technology, 221 (2012):271-277,
https://doi.org/10.1016/j.powtec.2012.01.014 . .

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