Effect of Zinc and Iron Ions on the Electrochemistry of Nickel Oxide Electrode: Slow Cyclic Voltammetry
NORTHERN ILLINOIS UNIV DE KALB DEPT OF CHEMISTRY
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Porous sintered nickel oxide electrodes were prepared by cathodic electroprecipitation from metal nitrate solutions and characterized by slow 0.1 mVs voltammetry in 6 moll KOH. Presence of iron or zinc ions resulted in decrease of electrode charging ability and similar changes in voltammograms were observed for both ions. Removal of iron or zinc ions and introduction of lithium ions partially restored the electrode and corresponding voltammogram to original conditions. Presence of cobalt in the electrode material diminished substantially the influence of zinc ions on the electrode properties.... Storage batteries, Power sources, Membrane transport, Ion transport, Nafion.
- Physical Chemistry
- Electrochemical Energy Storage
- Electricity and Magnetism
- Atomic and Molecular Physics and Spectroscopy