▎ 摘　　要

NOVELTY - Preparing carbon graphene porous nano-tube layer-by-layer self-assembling complex material comprises (i) dissolving the trimesic acid in the deionized water to obtain solution A, placing in an oil bath heating and stirring, (ii) slowly adding the solution B into the solution A, centrifuging and separating the product, drying, (iii) dispersing in the ethanol deionized aqueous solution to obtain solution C, (iv) dissolving the 2-methyl imidazole in ethanol deionized aqueous solution, adding triethylamine to obtain solution D, (v) heating the solution D in water bath and reacting, centrifuging and separating the product, (vi) heating the zinc-zeolite imidazole lipid frame nano-tube in the argon gas atmosphere and drying, (vii) dispersing the one-dimensional carbon porous-tube material in deionized water to obtain solution E, and (viii) slowly dropping the solution E into the solution F, and annealing to obtain the carbon graphene porous-tube layer self-assembling complex material. USE - The carbon graphene porous nano-tube layer-by-layer self-assembling complex material is useful for manufacturing sodium ion battery. ADVANTAGE - The carbon graphene porous nano-tube complex material: has excellent multiplying power performance and good circulating stability. DETAILED DESCRIPTION - Preparing carbon graphene porous nano-tube layer-by-layer self-assembled complex material comprises (i) dissolving the trimesic acid in deionized water to obtain solution A with a concentration of 4.667 g/l, dissolving zinc acetate in deionized water to obtain solution B with a concentration of 47 g/l, placing the solution A in an oil bath heating and stirring until it boils, (ii) slowly adding the solution B into the solution A, the volume ratio of the solution A and the solution B is 9:1, stirring and reacting for 5-40 minutes under the boiling condition, centrifuging and separating the product, washing with ethanol for multiple times, drying for 24 hours at 80℃ to obtain the one-dimensional zinc-trimesic acid coordinated polymer nano-wire, (iii) dispersing the zinc-trimesic acid coordinated polymer nano-wire in the ethanol in deionized aqueous solution to obtain solution C with a concentration of 0.67g/l, the volume ratio of ethanol and deionized water in the ethanol deionized aqueous solution is 9:1, (iv) dissolving the 2-methyl imidazole in ethanol deionized aqueous solution, then adding triethylamine to obtain solution D, the concentration of the 2-methyl imidazole in the solution D is 66.667 g/l, the concentration of the triethylamine is 20.54 g/l, the volume ratio of ethanol and deionized water in the ethanol deionized aqueous solution is 9:1, (v) heating the solution D in water bath at 45-75℃, slowly adding the solution C into the solution D, the volume ratio of the solution C and the solution D is 2:3, under the condition of 45-75℃ stirring and reacting for 30 minutes to 2 hours, centrifuging and separating the product, washing with ethanol for multiple times, drying for 24 hours at 80℃ to obtain the one-dimensional zinc-zeolite imidazole lipid framework nano-tube, (vi) heating the zinc-zeolite imidazole lipid framework nano-tube at 600-900℃ at a heating rate of 2℃/minute in the argon gas atmosphere, annealing for 2 hours, cooling to room temperature along with the furnace, then pickling in nitric acid deionized aqueous solution at 80℃ for 24 hours, centrifuging and separating the product, washing with ethanol for multiple times, drying for 24 hours at 80℃ to obtain the one-dimensional carbon porous-tube material; the volume ratio of nitric acid and deionized water in the nitric acid deionized aqueous solution is 1:2, (vii) dispersing one-dimensional carbon porous-tube material in deionized water to obtain solution E with a concentration of 1-4 g/l, dispersing the oxidation graphene in the deionized water to obtain solution F with concentration of 0.2-1 g/l, and (viii) slowly adding solution E into the solution F, the volume ratio of the solution E and the solution F is 1:3, ultrasonically processing for 20-60 minutes in the ultrasonic cell crushing instrument, vacuum filtering to obtain a film, heating to 200℃ in argon atmosphere at a heating rate of 2℃/minute, allowing to stand the temperature for 2 hours and annealing to obtain the carbon graphene porous-tube layer-by-layer self-assembling complex material, the graphene porous carbon nanotube layer-by-layer self-assembled compolex material is used to make a cathode for a sodium ion battery, the specific capacity is more than 300 mAh/g at a current density of 50 mA/g, and the specific capacity is more than 300 mAh/g at a current density of 2 A/g and it remains above 110 mAh/g at a current density of 3 A/g and 90 mAh/g at a current density of 3 A/g, at a current density of 2 A/g, the specific capacity is still has a retention rate of more than 80 % over 500 cycles.