Preparation and performance of coated titanium anodes for zinc electrodeposition
Coated titanium anode is a high-performance electrode with great application prospects in zinc electrodeposition.Anode coating was prepared by thermal decomposition method.Coated titanium anodes were characterized using X-ray diffraction(XRD),scanning electron microscopy(SEM),cyclic voltammetry(CV),linear scanning voltammetry(LSV),alternating current impedance testing(EIS),lifetime testing,and zinc electrodeposition.The effects of Ir,Ru,and Mn on the morphology,electrochemical performance,corrosion resistance,and current efficiency of zinc electrodeposition of anodic coatings were explored.The results show that the catalytic activity of several oxides decreases in the following order:IrO2＞RuO2＞β-MnO2,IrO2,RuO2,and MnO2 can form metal oxide solid solutions,improving coating morphology,enhancing coating stability and lifespan.The anode with Ti/IrO2-RuO2-MnO2 coating has an enhanced electrolysis life of 108 h,and the current efficiency of zinc electrodeposition can reach 91.35％,with good stability and electrochemical performance.
titanium anodesTi/IrO2-RuO2-MnO2coatingelectrocatalysis for oxygenelectrochemistryzinc electrowinning
万方数据
维普
