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The effect of silicate ion on the anodic behaviour of zinc in concentrated alkali

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Abstract

The anodic behaviour of zinc in 8 M NaOH/1 M Na2Zn(OH)4, containing 0.1, 1 and 10 v/o sodium silicate solution, has been studied under quiescent conditions at ambient temperature using cyclic linear sweep voltammetry in conjunction with darkfield illumination optical photo-microscopy.

Results, together with measurements of the double layer capacitance of the zinc/alkali interphase as a function of potential, suggest the presence of a surface film of silicate which induces early passivation in the anodic potential excursion.

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Authors and Affiliations

  1. Timex Corporation, Stephenson Estate, Washington, Co. Durham, UK

    R. W. Lewis & J. Turner

Authors
  1. R. W. Lewis
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  2. J. Turner
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Lewis, R.W., Turner, J. The effect of silicate ion on the anodic behaviour of zinc in concentrated alkali. J Appl Electrochem 5, 343–349 (1975). https://doi.org/10.1007/BF00608798

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  • DOI: https://doi.org/10.1007/BF00608798

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