In this review paper, morphologies of metal powders produced by the constant (potentiostatic
and galvanostatic) regimes of electrolysis from aqueous electrolytes are correlated with
their crystal structure at the semiquantitative level. The main parameters affecting the shape of
powder particles are the exchange current density (rate of electrochemical process) and overpotential for hydrogen evolution reaction. Depending on them, various shapes of dendrites (the needles, the two-dimensional (2D) fern-like, and the three-dimensional (3D) pine-like dendrites), and the particles formed under vigorous hydrogen evolution (cauliflower-like and spongy-like particles) are produced by these regimes of electrolysis. By decreasing the exchange current density value, the crystal structure of the powder particles is changed from the strong (111) preferred orientation obtained for the needle-like (silver) and the 2D (lead) dendrites to the randomly orientated crystallites in particles with the sp...herical morphology (the 3D dendrites and the cauliflower-like and the spongylike particles). The formation of metal powders by molten salt electrolysis and by electrolysis in deep eutectic solvents (DESs) and the crystallographic aspects of dendritic growth are also mentioned in this review.
Keywords:
electrolysis / morphology of particles / the crystal structure / dendrite / hydrogen evolution
TY - JOUR
AU - Nikolić, Nebojša D.
AU - Maksimović, Vesna M.
AU - Avramović, Ljiljana
PY - 2021
UR - https://cer.ihtm.bg.ac.rs/handle/123456789/4680
AB - In this review paper, morphologies of metal powders produced by the constant (potentiostatic
and galvanostatic) regimes of electrolysis from aqueous electrolytes are correlated with
their crystal structure at the semiquantitative level. The main parameters affecting the shape of
powder particles are the exchange current density (rate of electrochemical process) and overpotential for hydrogen evolution reaction. Depending on them, various shapes of dendrites (the needles, the two-dimensional (2D) fern-like, and the three-dimensional (3D) pine-like dendrites), and the particles formed under vigorous hydrogen evolution (cauliflower-like and spongy-like particles) are produced by these regimes of electrolysis. By decreasing the exchange current density value, the crystal structure of the powder particles is changed from the strong (111) preferred orientation obtained for the needle-like (silver) and the 2D (lead) dendrites to the randomly orientated crystallites in particles with the spherical morphology (the 3D dendrites and the cauliflower-like and the spongylike particles). The formation of metal powders by molten salt electrolysis and by electrolysis in deep eutectic solvents (DESs) and the crystallographic aspects of dendritic growth are also mentioned in this review.
PB - MDPI
T2 - Metals
T1 - Correlation of Morphology and Crystal Structure of Metal Powders Produced by Electrolysis Processes
VL - 11
IS - 6
SP - 859
DO - 10.3390/met11060859
ER -
@article{
author = "Nikolić, Nebojša D. and Maksimović, Vesna M. and Avramović, Ljiljana",
year = "2021",
abstract = "In this review paper, morphologies of metal powders produced by the constant (potentiostatic
and galvanostatic) regimes of electrolysis from aqueous electrolytes are correlated with
their crystal structure at the semiquantitative level. The main parameters affecting the shape of
powder particles are the exchange current density (rate of electrochemical process) and overpotential for hydrogen evolution reaction. Depending on them, various shapes of dendrites (the needles, the two-dimensional (2D) fern-like, and the three-dimensional (3D) pine-like dendrites), and the particles formed under vigorous hydrogen evolution (cauliflower-like and spongy-like particles) are produced by these regimes of electrolysis. By decreasing the exchange current density value, the crystal structure of the powder particles is changed from the strong (111) preferred orientation obtained for the needle-like (silver) and the 2D (lead) dendrites to the randomly orientated crystallites in particles with the spherical morphology (the 3D dendrites and the cauliflower-like and the spongylike particles). The formation of metal powders by molten salt electrolysis and by electrolysis in deep eutectic solvents (DESs) and the crystallographic aspects of dendritic growth are also mentioned in this review.",
publisher = "MDPI",
journal = "Metals",
title = "Correlation of Morphology and Crystal Structure of Metal Powders Produced by Electrolysis Processes",
volume = "11",
number = "6",
pages = "859",
doi = "10.3390/met11060859"
}
Nikolić, N. D., Maksimović, V. M.,& Avramović, L.. (2021). Correlation of Morphology and Crystal Structure of Metal Powders Produced by Electrolysis Processes. in Metals
MDPI., 11(6), 859.
https://doi.org/10.3390/met11060859
Nikolić ND, Maksimović VM, Avramović L. Correlation of Morphology and Crystal Structure of Metal Powders Produced by Electrolysis Processes. in Metals. 2021;11(6):859.
doi:10.3390/met11060859 .
Nikolić, Nebojša D., Maksimović, Vesna M., Avramović, Ljiljana, "Correlation of Morphology and Crystal Structure of Metal Powders Produced by Electrolysis Processes" in Metals, 11, no. 6 (2021):859,
https://doi.org/10.3390/met11060859 . .
