The effect of zinc and of iron on the electrode prepared with pure nickel hydroxide were very similar including the partial restoration of electrode properties once these ions were removed from the solution the presence of cobalt in the electrode materials diminished the effect of zinc observed in electrodes without cobalt cobalt also increased the reversibility of the electrochemical reaction it was observed that zinc in the cobaltdoped electrode even somewhat increased soe . Porous nickl oxide electrodes were prepared by cathodic electroprecipitation from metal nitrate solutions on sintered substrate and characteristics by slow 01 m v s voltammetry in 6 mol 1 koh the presence of iron or zinc ions added to the electrolyte after formation of the electrodes resulted in a decrease of electrode charging ability removal of iron or zinc ions and presence of lithium ions partially restored the voltammogram to original conditions presence of cobalt in the electrode . Effect of zinc and iron ions on the electrochemistry of nickel oxide electrode slow cyclic voltammetry nasa ads porous nickl oxide electrodes were prepared by cathodic electroprecipitation from metal nitrate solutions on sintered substrate and characteristics by slow 01 m v s voltammetry in 6 mol 1 koh. Porous sintered nickel oxide electrodes were prepared by cathodic electroprecipitation from metal nitrate solutions and characterized by slow 01 mv s voltammetry in 6 mol l koh presence of iron or zinc ions resulted in decrease of electrode charging ability and similar changes in voltammograms . Effect of zinc and iron ions on the electrochemistry of nickel oxide electrode slow cyclic voltammetry partially restored the voltammogram to original conditions presence of cobalt in the electrode effect of zinc and iron ions on the electrochemistry of nickel oxide electrode slow cyclic voltammetry nasa ads porous nickl oxide electrodes were