CER - Central Repository
Institute of Chemistry, Technology and Metallurgy
    • English
    • Српски
    • Српски (Serbia)
  • English 
    • English
    • Serbian (Cyrilic)
    • Serbian (Latin)
  • Login
View Item 
  •   Central Repository
  • IHTM
  • Radovi istraživača / Researchers' publications
  • View Item
  •   Central Repository
  • IHTM
  • Radovi istraživača / Researchers' publications
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Morphologies of electrochemically formed copper powder particles and their dependence on the quantity of evolved hydrogen

Authorized Users Only
2008
Authors
Nikolić, Nebojša D.
Pavlovic, Lj. J.
Pavlović, Miomir
Popov, Konstantin I.
Article (Published version)
Metadata
Show full item record
Abstract
Copper powder particles formed by electrolysis under different quantities of evolved hydrogen were analyzed using the scanning electron microscopy (SEM) technique. It was found that the structure of the powder particles strongly depended on the quantity of evolved hydrogen that is, two types of powder particles were formed, depending on the quantity of evolved hydrogen. One type of particle was formed during the electrodeposition of copper when the quantity of evolved hydrogen was insufficient to change the hydrodynamic conditions in the near-electrode layer. This particle type comprised dendrites constructed of corncob-like structures as the basic element. The other type of particle was cauliflower-like and was formed when the quantity of evolved hydrogen was sufficient to change the hydrodynamic conditions in the near-electrode layer. However, both types of particle consisted of agglomerates of copper grains. The only difference lay in the size of the copper grains of which the agglo...merates were constituted. The size of the grains was a function of the electrodeposition overpotential and, consequently, the quantity of evolved hydrogen, with a tendency to attain a steady value when the electrodeposition overpotential was increased.

Keywords:
powder particles / copper / electrolysis / scanning electron microscope (SEM) / hydrogen evolution
Source:
Powder Technology, 2008, 185, 3, 195-201
Publisher:
  • Elsevier Science Sa, Lausanne
Projects:
  • Deposition of ultrafinepowders of metals and alloys and nanostructured surfaces by electrochemical techniques (RS-142032)

DOI: 10.1016/j.powtec.2007.10.014

ISSN: 0032-5910

WoS: 000257533600001

Scopus: 2-s2.0-44449164383
[ Google Scholar ]
46
47
URI
http://cer.ihtm.bg.ac.rs/handle/123456789/380
Collections
  • Radovi istraživača / Researchers' publications
Institution
IHTM

DSpace software copyright © 2002-2015  DuraSpace
About CeR – Central Repository | Send Feedback

OpenAIRERCUB
 

 

All of DSpaceInstitutionsAuthorsTitlesSubjectsThis institutionAuthorsTitlesSubjects

Statistics

View Usage Statistics

DSpace software copyright © 2002-2015  DuraSpace
About CeR – Central Repository | Send Feedback

OpenAIRERCUB