Journal of Applied Electrochemistry

, Volume 22, Issue 8, pp 693–698 | Cite as

Effect of PbO on zinc electrodeposition from zincate solutions

  • Z. Mao
  • S. Srinivasan
  • A. J. Appleby
Papers

Abstract

The effect of PhO on zinc electrodeposition on a copper substrate from zincate solutions was investigated using cyclic voltammetry and by polarization measurements as a function of time. It was found that lead deposition caused the zinc deposition potential to cathodically shift by 100 mV in the negative direction. It is suggested that the presence of lead on the copper substrate suppresses hydrogen absorption and consequently inhibits zinc deposition via a path such as
$$\left( {ZnOH} \right)_{ad} + H_{ad} \to Zn + H_2 O$$
.

The polarization studies indicate that co-deposition of lead does not affect zinc deposition kinetics.

Keywords

Hydrogen Copper Zinc Physical Chemistry Cyclic Voltammetry 

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Copyright information

© Chapman & Hall 1992

Authors and Affiliations

  • Z. Mao
    • 1
  • S. Srinivasan
    • 1
  • A. J. Appleby
    • 1
  1. 1.Center for Electrochemical Systems and Hydrogen Research, Texas Engineering Experiment StationTexas A&M University SystemCollege StationUSA

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