Preparation method of neodymium-doped titanium base tin dioxide-antimony electrode

The invention relates to a preparation method of neodymium-doped titanium base tin dioxide-antimony electrode. The method comprises the following steps: 1) the pretreatment of electrode substrate: polishing, alkaline cleaning and pickling; 2) the preparation of masking liquid: dissolving SnCl4.5H2O, SbCl3 and Nd(NO3)3 according to a ratio of 100:15:1 in solvent to obtain the masking liquid; 3) thepreparation of electrode coating by using immersion method: (1) completely soaking the titanium electrode substrate in the masking liquid for 1min; (2) withdrawing the titanium electrode substrate, blowing away the excessive masking liquid with a blow drier; (3) drying in a baking oven at 100-120 DEG C for 10min to volatilize all the solvent; (4) placing the substrate in a muffle furnace to perform thermal oxidation at 550 DEG C for 15min; (5) cooling to room temperature, dipping again, drying, performing thermal oxidation and repeating the above steps for 15 times to obtain the Nb-doped Ti/Sb-SnO2 electrode. The Nb-doped Ti/Sb-SnO2 electrode prepared by the method of the invention has high oxygen evolution potential, catalytic performance and electricity.