Effect of nickel intermediate layer on the anodic properties of Titanium-based lead dioxide

As an anode material for electrochemical oxidation treatment of organic wastewater, its basic principles are good conductivity, excellent electrocatalytic oxidation performance (efficient hydroxyl radical generation and oxidation reaction ability) and appropriate economic performance. Although the boron diamond (BDD), tin oxide, manganese dioxide electrode are attention by a large number of researchers, but titanium base lead dioxide electrode coating because of its excellent chemical stability, high corrosion resistance and relatively low economic cost and higher oxygen evolution potential, large range of process parameter control, oxygen) side effects are less advantages of 13.14 as the most likely practical choice. However, although the surface layer β-PbO2 has good conductivity and corrosion resistance, it has the inevitable electrocrystalline stress. Therefore, in practical applications, titanium lead dioxide electrodes are often exposed to defects such as low adhesion, easy peeling, short life and poor durability in the electrooxidation treatment process, etc., which need to be effectively solved. It is an effective technical approach to solve this problem to select suitable intermediate layer to improve electrode performance. It has been proved that the formation of Sn - Sb oxide by pyrolysis in the preparation of a stable anode can achieve a conductive and mutually soluble intermediate layer.