Journal of Applied Electrochemistry

, Volume 30, Issue 4, pp 429–437

Electrochemical investigation of the codeposition of SiC and SiO2 particles with nickel

  • P. Nowak
  • R.P. Socha
  • M. Kaisheva
  • J. Fransaer
  • J.-P. Celis
  • Z. Stoinov
Article

DOI: 10.1023/A:1003979117146

Cite this article as:
Nowak, P., Socha, R., Kaisheva, M. et al. Journal of Applied Electrochemistry (2000) 30: 429. doi:10.1023/A:1003979117146

Abstract

The use of electrochemical impedance spectroscopy (EIS) for the in situ control of the electrolytic codeposition of Ni/SiO2 and Ni/SiC was investigated. An attempt was made to clarify why silica particles hardly codeposit in comparison to silicon carbide particles. It was found that the presence of SiO2 and SiC particles influences the metal deposition process in different ways. SiC particles that are being embedded in the growing metal layer cause an apparent decrease in the electrode surface area, probably due to blocking off a part of the surface by partly engulfed particles. In the case of SiO2 particles, which embed in the metal matrix to a very limited extent, no blocking was observed. It was found that the presence of particles in the solution causes an apparent increase in the electrode surface area, probably due to increased surface roughness.

composite coatingselectrochemical impedance spectroscopynickel electrodepositionparticle codepositionsilicon carbide

Copyright information

© Kluwer Academic Publishers 2000

Authors and Affiliations

  • P. Nowak
    • 1
  • R.P. Socha
    • 1
  • M. Kaisheva
    • 2
  • J. Fransaer
    • 3
  • J.-P. Celis
    • 3
  • Z. Stoinov
    • 4
  1. 1.Institute of Catalysis and Surface ChemistryPolish Academy of SciencesKrakówPoland
  2. 2.Faculty of Chemistry, Department of Physical ChemistryUniversity of SofiaSofiaBulgaria
  3. 3.Department of Metallurgy and Materials EngineeringKatholieke Universiteit LeuvenHeverleeBelgium
  4. 4.Central Laboratory of Electric Power SourcesBulgarian Academy of SciencesSofiaBulgaria