Preparation method and application of hollow nano groove type membrane electrode

The invention provides a preparation method and application of a hollow nano groove type membrane electrode. The preparation method specifically comprises the following steps: preparing nanofibers, loading a catalyst on the surfaces of the nanofibers, and assembling the membrane electrode. The method is characterized in that firstly, a nanofiber template agent is prepared through electrostatic spinning, a catalyst active component is supported on the surface of the template agent through a physical vapor deposition or chemical reduction method, then the template agent is removed in a solvent dipping or calcining mode to obtain a hollow nano-groove structure, and finally, the hollow nano-groove structure is hot-pressed to an ion exchange membrane to prepare the membrane electrode. The prepared membrane electrode can be used for proton exchange membrane fuel cells, solid polymer electrolyte water electrolysis and integrated renewable fuel cells. The membrane electrode prepared by the invention has the advantage