Journal of Applied Electrochemistry

, Volume 18, Issue 6, pp 799–806

Hydrogen production during zinc deposition from alkaline zincate solutions

  • R. E. F. Einerhand
  • W. H. M. Visscher
  • E. Barendrecht
Papers

DOI: 10.1007/BF01016034

Cite this article as:
Einerhand, R.E.F., Visscher, W.H.M. & Barendrecht, E. J Appl Electrochem (1988) 18: 799. doi:10.1007/BF01016034

Abstract

The determination of the amount of hydrogen produced during the electrodeposition of zinc from alkaline zincate solutions was carried out using the rotating ring-disc electrode (RRDE) technique. The experimental conditions for which the RRDE technique offers reliable results are discussed. Hydrogen production during zinc deposition was studied for a range of cathodic (disc) current densities (20–500 A m−2) and electrolyte compositions (1–7 M KOH, 0.01–0.2 M zincate). It was found that an increasing amount of hydrogen was formed with increasing (disc) current density and decreasing KOH and zincate concentration. The impact of hydrogen formation during the charging process on nickel oxide/zinc secondary battery performance is expected to be small. It is concluded that in battery electrolytes (8 M KOH, 1 M zincate) hydrogen is formed chiefly by corrosion of the zinc electrode rather than by electrochemical formation during the electrochemical reduction of zinc.

Copyright information

© Chapman and Hall Ltd 1988

Authors and Affiliations

  • R. E. F. Einerhand
    • 1
  • W. H. M. Visscher
    • 1
  • E. Barendrecht
    • 1
  1. 1.Laboratory for Electrochemistry, Department of Chemical TechnologyEindhoven University of TechnologyEindhovenThe Netherlands

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