Journal of Applied Electrochemistry

, Volume 36, Issue 9, pp 1005–1009

Hydrogen evolution on Ni/WC composite coatings

  • V. Marinović
  • J. Stevanović
  • B. Jugović
  • M. Maksimović
Article

DOI: 10.1007/s10800-006-9168-1

Cite this article as:
Marinović, V., Stevanović, J., Jugović, B. et al. J Appl Electrochem (2006) 36: 1005. doi:10.1007/s10800-006-9168-1

Abstract

The catalytic activity for the hydrogen evolution reaction (HER) of Ni/WC composites obtained by electrochemical deposition of nickel from a conventional Watt’s bath, using two different ways of depositing the WC particles, was investigated. All the composite coatings exhibited electrocatalytic activity for the HER larger than that of pure Ni in both alkaline and acid solution. The activity increased with increasing content of WC in the coating and, in the pulsed current regime, with increasing frequency of pulsation. In addition, coatings with smaller particles incorporated exhibited higher activity than those with larger particles. At a constant potential, an order of magnitude higher current densities were obtained in some cases.

Keywords

catalyst composite electrodeposition hydrogen evolution (HER) Ni/WC 

Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • V. Marinović
    • 1
  • J. Stevanović
    • 2
  • B. Jugović
    • 1
  • M. Maksimović
    • 3
  1. 1.Institute of Technical Sciences of the Serbian Academy of Science and ArtsBelgradeSerbia and Montenegro
  2. 2.Institute of Electrochemistry – Institute of Chemistry, Technology and MetallurgyBelgradeSerbia and Montenegro
  3. 3.Faculty of Technology and MetallurgyUniversity of BelgradeBelgradeSerbia and Montenegro

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