Preparation method of porous PTFE-based electrode and application of porous PTFE-based electrode in electrocatalytic carbon dioxide reduction

The invention discloses a preparation method of a porous PTFE (Polytetrafluoroethylene)-based electrode and application of the porous PTFE-based electrode in electrocatalytic carbon dioxide reduction, and aims to solve the problems that a cathode carbon-based electrode in traditional electrocatalytic carbon dioxide reduction is unstable and easy to lose efficacy, a highly hydrophobic polymer-polytetrafluoroethylene (PTFE) porous membrane is adopted as a substrate, and the mechanical strength of the structure is improved through self-assembly reinforcement; and loading a high-activity catalyst to prepare the porous PTFE-based electrode. The electrode obtained through the method has a sufficient gas transport channel and a stable gas-liquid-solid three-phase interface, the durability of the catalyst in the carbon dioxide reduction process is greatly enhanced, the synthesis raw materials are low in price, the operation method is simple and convenient, the stability of electrocatalytic carbon dioxide reduction is