Preparation method of electrode, electrode and electrolytic tank

The invention relates to the technical field of electrolytic tank materials, in particular to a preparation method of an electrode, the electrode and an electrolytic tank. The preparation method of the electrode comprises the following steps: S100, mixing a catalyst, an organic solvent, an additive and a binder to obtain precursor slurry; s200, carrying out defoaming treatment on the precursor slurry obtained in the step S100; s300, the slurry obtained in the step S200 is pressurized, the pressurized slurry is formed to obtain a rough blank, and then organic matter is removed from the rough blank; and S400, drying the rough blank obtained in the step S300 to obtain a dried blank, and sintering the dried blank. The electrode can be made into a catalyst-supported catalyst-electrode integrated structure, gas is forcibly diffused to pass through the porous electrode, the gas is highly dispersed in the diffusion process and forcibly reacts with active sites of the electrode and undergoes electron transfer, the gas