▎ 摘　　要

NOVELTY - Preparation of graphene-coated magnetic nano nickel particles involves stirring liquid acrylonitrile oligomer (LPAN) solution at 100-200 degrees C for 100-200 hours, heat-treating, adding obtained thermally-oxidized polyacrylonitrile oligomer and nickel compound to a solvent, mixing uniformly, drying obtained LPAN-coated nickel compound at 200-250 degrees C for 1-10 hours until solvent is completely evaporated, and calcining obtained low-temperature carbonization precursor-coated nickel compound at 700-1500 degrees C for 1-10 hours in an inert gas protection atmosphere. USE - Preparation of graphene-coated magnetic nano nickel particles (claimed). ADVANTAGE - The method enables economical preparation of graphene-coated magnetic nano nickel particles having uniform particle size, with high purity and yield, by simple method. DETAILED DESCRIPTION - Preparation of graphene-coated magnetic nano nickel particles involves stirring liquid acrylonitrile oligomer (LPAN) solution at 100-200 degrees C for 100-200 hours, heat-treating obtained micro-cyclized LPAN solution at 200-300 degrees C for 1-10 hours, adding obtained trapezoidal structure thermally-oxidized polyacrylonitrile oligomer and nickel compound to a solvent, mixing uniformly, drying obtained LPAN-coated nickel compound at 200-250 degrees C for 1-10 hours until solvent is completely evaporated, and calcining obtained low-temperature carbonization precursor-coated nickel compound at 700-1500 degrees C for 1-10 hours in an inert gas protection atmosphere with gas flow rate of 10-500 ml/minute.