▎ 摘　　要

NOVELTY - A porous graphene/nano-ceramic composite structure-based platinum catalyst comprises porous graphene/nano-ceramic carrier, and nano-platinum particles which are uniformly deposited on the surface of carrier. The porous graphene/nano ceramic carrier is formed by inserting porous graphene as surface layer and nano ceramic as core material into the porous graphite sheet. USE - Porous graphene/nano-ceramic composite structure-based platinum catalyst (claimed). ADVANTAGE - The utilization rate of the catalyst components is improved, and the amount of platinum is reduced. The porous graphene/nanoceramic composite structure inhibits migration and agglomeration of platinum nanoparticles on the surface of the carrier, and improves the stability of the catalyst. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of porous graphene/nano-ceramic composite structure-based platinum catalyst, which involves adding porous graphene in deionized water and unltrasonically dispersing, then adding nano ceramic particles, and mixing,, and freeze drying porous graphene/nano-ceramic carrier, deposition platinum nano-particles on the surface of the carries using atomic layer deposition method, to form a platinum catalyst.