▎ 摘　　要

NOVELTY - Preparation of co-doped three-dimensional graphene electrode material includes cleaning Artemia egg shell, soybean pulp, and shrimp shell, drying, ball milling, orderly washing with hydrochloric acid and deionized water, and drying; adding nickel acetate solution, and stirring; adding potassium hydroxide solution; adding red phosphorus or boracic acid, heating, high-speed stirring, evaporating into paste, and carbon stripping; drying, grinding, heating under argon atmosphere, and keeping temperature; acid washing, washing with water, filtering and drying; and grinding into powder. USE - Method for preparing co-doped three-dimensional graphene electrode material (claimed) used for super capacitor, lithium ion battery and catalyst carrier. ADVANTAGE - The material is suitable for large scale industrialization, and has wide raw material source, low cost, simple device, good electrochemical activity, and large surface area. DETAILED DESCRIPTION - Preparation of co-doped three-dimensional graphene electrode material comprises cleaning Artemia egg shell, soybean pulp, and shrimp shell, drying at 120 degrees C, ball milling for 3-6 hours, orderly washing with hydrochloric acid and deionized water to a pH of 7, and drying to obtain precursor; adding 100 ml 0.01-0.1 mol/L nickel acetate solution per 0.25-7.47 g precursor, and stirring for 0.5-2 hours to uniformly distribute metal ion on precursor surface; adding potassium hydroxide solution at mass ratio of 1:2-4; adding red phosphorus or boracic acid at mass ratio of 3:1-1:3, heating to 80-180 degrees C, high-speed stirring, evaporating into paste, and carbon stripping; drying, grinding to fine powder, heating to 700-900 degrees C at heating speed of 2 degrees C/minute under argon atmosphere, and keeping temperature for 2-4 hours; acid washing, washing with water to a pH of 7, filtering, and drying to obtain doped graphene; grinding into powder; taking graphene, acetylene black, and PTFE at mass ratio of 8-8.5:1:0.5-1, ultrasonically dispersing in anhydrous ethanol, and evaporating into paste at 80-120 degrees C; uniformly coating 0.5-5 mg of mixture of graphene, acetylene black and PTFE per 1 cm2 foamed nickel, vacuum drying at 80-120 degrees C for 12-24 hours; and pressing at 12 MPa.