The effect of antimony on the anodic behaviour of lead in sulphuric acid solutions—I. Voltammetric measurements
作者： T. Laitinen , K. Salmi , G. Sundholm , B. Monghov , D. Pavlov
DOI: 10.1016/0013-4686(91)85147-Y
关键词: Doping 、 Electrode 、 Stoichiometry 、 Anode 、 Corrosion 、 Inorganic chemistry 、 Electrolyte 、 Chemistry 、 Antimony 、 Oxide
摘要: Abstract The influence of Sb on the formation corrosion layer Pb has been studied with a Pb—12%Sb alloy electrode in sulphuric acid solution using ring-disk technique decay measurement and galvanostatic oxidation. It was found that voltammograms PbSb new cathodic peak appears, compared to pure Pb, after oxidation at constant potentials > 0.8V, showing product is formed. stoichiometry this changes gradually potential approaching PbO2 high anodic potentials. This also improves electronic conductivity layer. effect Sb(III) or Sb(V) dissolved electrolyte containing similar as an alloying agent. suggested oxide (most probably nonstoichiometric) doped mixed oxide.
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