▎ 摘　　要

NOVELTY - A metal particle-liquid metal catalyst comprises a graphene foam as a carrier and a composite metal particle as a filler, where the composite metal particle is a liquid metal that disperses the nano metal particle in the molten metal, the nano metal particles are manganese, iron, cobalt, nickel, copper, zinc, palladium, and silver, the particle size of the nano metal particles is 10-500 nm, and the liquid metal comprises 5-25 wt.% indium, 5-25 wt.% antimony and balance tin. USE - Metal particle-liquid metal catalyst for use in cathode of proton exchange membrane fuel cell (claimed). ADVANTAGE - The catalyst has strong catalytic activity, and can replace the traditional platinum catalyst used in proton exchange film fuel cell cathode, and can improve the battery performance of the fuel cell. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for producing a metal particle-liquid metal catalyst.