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General Theory of Disperse Metal Electrodeposits Formation

Authorized Users Only
2012
Authors
Popov, Konstantin I.
Nikolić, Nebojša D.
Book part (Published version)
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Abstract
In this chapter, the fundamental aspects of disperse metals electrodeposition are discussed. The shapes of polarization curves in relation to the deposition process parameters are analyzed. Disperse metal deposits are formed with a nonuniform current density distribution over the surface of the macroelectrode. Adherent granular disperse deposits are produced in an electrodeposition process characterized by a large exchange current density, due to the formation of nucleation exclusion zones around growing grains on the inert substrate. Nonadherent dendritic or spongy deposits are formed in the dominant diffusion control on the level of the macroelectrode and an activation control on the tips of microelectrodes placed inside the diffusion layer of the macroelectrode. Nonadherent honeycomblike deposit is formed in the presence of strong hydrogen codeposition. All the above cases are discussed in detail and explained using appropriate mathematical models. It is also shown that the format...ion of dendritic deposits at low level of coarseness strongly increases the apparent exchange current density for the deposition process, producing electrocatalytic effect.

Keywords:
Polarization Curve / Diffusion Layer / Hydrogen Evolution / Diffusion Control / Dendritic Growth
Source:
Electrochemical Production of Metal Powders, Series: Modern Aspects of Electrochemistry, 2012, 54, 1-62
Publisher:
  • Springer
Funding / projects:
  • Electrochemical synthesis and characterization of nanostructured functional materials for application in new technologies (RS-172046)
Note:
  • The peer-reviewed version: https://cer.ihtm.bg.ac.rs/handle/123456789/4103

DOI: 10.1007/978-1-4614-2380-5_1

ISBN: 978-1-4614-2379-9

ISSN: 0076-9924

[ Google Scholar ]
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/4095
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - CHAP
AU  - Popov, Konstantin I.
AU  - Nikolić, Nebojša D.
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4095
AB  - In this chapter, the fundamental aspects of disperse metals electrodeposition are discussed. The shapes of polarization curves in relation to the deposition process parameters are analyzed.
Disperse metal deposits are formed with a nonuniform current density distribution over the surface of the macroelectrode. Adherent granular disperse deposits are produced in an electrodeposition process characterized by a large exchange current density, due to the formation of nucleation exclusion zones around growing grains on the inert substrate. Nonadherent dendritic or spongy deposits are formed in the dominant diffusion control on the level of the macroelectrode
and an activation control on the tips of microelectrodes placed inside the diffusion layer of the macroelectrode. Nonadherent honeycomblike deposit is formed in the presence of strong hydrogen codeposition. All the above cases are discussed in detail and explained using appropriate mathematical models. It is also shown that the formation of dendritic deposits at low level of coarseness strongly increases the apparent exchange current density for the deposition
process, producing electrocatalytic effect.
PB  - Springer
T2  - Electrochemical Production of Metal Powders, Series: Modern Aspects of Electrochemistry
T1  - General Theory of Disperse Metal Electrodeposits Formation
VL  - 54
SP  - 1
EP  - 62
DO  - 10.1007/978-1-4614-2380-5_1
ER  - 
@inbook{
author = "Popov, Konstantin I. and Nikolić, Nebojša D.",
year = "2012",
abstract = "In this chapter, the fundamental aspects of disperse metals electrodeposition are discussed. The shapes of polarization curves in relation to the deposition process parameters are analyzed.
Disperse metal deposits are formed with a nonuniform current density distribution over the surface of the macroelectrode. Adherent granular disperse deposits are produced in an electrodeposition process characterized by a large exchange current density, due to the formation of nucleation exclusion zones around growing grains on the inert substrate. Nonadherent dendritic or spongy deposits are formed in the dominant diffusion control on the level of the macroelectrode
and an activation control on the tips of microelectrodes placed inside the diffusion layer of the macroelectrode. Nonadherent honeycomblike deposit is formed in the presence of strong hydrogen codeposition. All the above cases are discussed in detail and explained using appropriate mathematical models. It is also shown that the formation of dendritic deposits at low level of coarseness strongly increases the apparent exchange current density for the deposition
process, producing electrocatalytic effect.",
publisher = "Springer",
journal = "Electrochemical Production of Metal Powders, Series: Modern Aspects of Electrochemistry",
booktitle = "General Theory of Disperse Metal Electrodeposits Formation",
volume = "54",
pages = "1-62",
doi = "10.1007/978-1-4614-2380-5_1"
}
Popov, K. I.,& Nikolić, N. D.. (2012). General Theory of Disperse Metal Electrodeposits Formation. in Electrochemical Production of Metal Powders, Series: Modern Aspects of Electrochemistry
Springer., 54, 1-62.
https://doi.org/10.1007/978-1-4614-2380-5_1
Popov KI, Nikolić ND. General Theory of Disperse Metal Electrodeposits Formation. in Electrochemical Production of Metal Powders, Series: Modern Aspects of Electrochemistry. 2012;54:1-62.
doi:10.1007/978-1-4614-2380-5_1 .
Popov, Konstantin I., Nikolić, Nebojša D., "General Theory of Disperse Metal Electrodeposits Formation" in Electrochemical Production of Metal Powders, Series: Modern Aspects of Electrochemistry, 54 (2012):1-62,
https://doi.org/10.1007/978-1-4614-2380-5_1 . .

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