Mechanism of the reverse dissolution of zinc in the presence of nickel Part I: Influence of anodic products and substrate purity - Sorbonne Université Access content directly
Journal Articles Journal of Applied Electrochemistry Year : 1993

Mechanism of the reverse dissolution of zinc in the presence of nickel Part I: Influence of anodic products and substrate purity

Abstract

From galvanostatic potential-time curves, voltammograms and impedance measurements, it is shown that the destabilization of the zinc deposition process by Ni2+ ions present in the acidic sulphate electrolyte is considerably favoured in the absence of a diaphragm separating the anode and cathode compartments. It is concluded that the deleterious influence of Ni2+ ions is enhanced by the anodically formed products which interfere with the slow interfacial processes taking place at the cathode surface. A stronger synergetic influence of nickel and oxidized species is demonstrated when using an aluminium cathode containing Fe impurities.

Dates and versions

hal-04502817 , version 1 (13-03-2024)

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Chantal Cachet, Robert Wiart, I. Ivanov, S. Rashkov. Mechanism of the reverse dissolution of zinc in the presence of nickel Part I: Influence of anodic products and substrate purity. Journal of Applied Electrochemistry, 1993, 23 (10), pp.1011-1016. ⟨10.1007/BF00266122⟩. ⟨hal-04502817⟩
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