▎ 摘　　要

NOVELTY - Palladium-based catalyst comprises graphene, palladium metal and base metal and/or silver metal particles, prepared by dispersing palladium metal in base metal and/or silver metal particles, and in situ bonding to graphene surface and/or interlayer gap. The molar ratio of palladium metal to base metal and/or silver metal is 1:(1-10). USE - Palladium-based catalyst used for electroless copper plating, electroless nickel plating, fuel cell, lithium/zinc/aluminum air battery, glucose detection, and carbon oxide oxidation (claimed). ADVANTAGE - The catalyst improves catalytic area, ensures uniform distribution, reduces production cost, saves energy, and protects environment.