Electrochemical Behavior of the Nickel/Oxide Tungsten Bronze System at Cyclic Potential Sweep

Аннотация

The electrochemical behavior of nickel in the K₂WO₄–Na₂WO₄ (1 : 1)–WO₃ (35 mol %) and K₂WO₄–Na₂WO₄ (1 : 1)–WO₃ (50 mol %) polytungstate melts was studied by the cyclic voltammetry. Based on a comparison of the obtained cyclic voltammograms with the data of SEM, EDS and XRD conclusions were drawn about the sequence of processes proceeding on the nickel substrate. Equations of the electrolysis products formation are proposed.