▎ 摘　　要

NOVELTY - Nickel-cobalt-iron three-metal catalyst (I) are new. (I) is composed of nickel, cobalt, iron and sulfur in the form of phosphorus sulfide, and loaded on a carbon paper. USE - (I) is useful for in-situ growing graphene and vulcanizing after pre-phosphorization (claimed). ADVANTAGE - The nickel-cobalt-iron three-metal catalyst has high catalytic activity, stable performance of electrolytic water catalytic material, and improved durability. DETAILED DESCRIPTION - Nickel-cobalt-iron three-metal catalyst of formula ((NixCoyFez)PvSu-CP) (I) are new. (I) is composed of nickel, cobalt, iron and sulfur in the form of phosphorus sulfide, and loaded on a carbon paper (CP). x/y, x/z, v and u = 0-10. An INDEPENDENT CLAIM is also included for preparation of (I).