Preparation method of nitrogen-doped graphene material containing 3, 5-diamino-1H-1, 2, 4-triazole

A nitrogen-doped graphene and diamino technology, which is applied in graphene, chemical instruments and methods, inorganic chemistry, etc., can solve the problems of limited application and difficult compounding of graphene materials, so as to expand applications and improve free loading. Effects of carrier density, improved conductivity and stability

Inactive Publication Date: 2020-03-31
GUANGDONG UNIV OF PETROCHEMICAL TECH
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Problems solved by technology

[0005] The present invention provides a preparation method of nitrogen-doped graphene material based on 3,5-diamino-1 hydrogen-1,2,4-triazole, aiming to solve the problem that graphene material is not easy to be combined with other materials, leading to the application restricted question

Method used

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  • Preparation method of nitrogen-doped graphene material containing 3, 5-diamino-1H-1, 2, 4-triazole
  • Preparation method of nitrogen-doped graphene material containing 3, 5-diamino-1H-1, 2, 4-triazole
  • Preparation method of nitrogen-doped graphene material containing 3, 5-diamino-1H-1, 2, 4-triazole

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Effect test

Embodiment 1

[0019] 0.1 g of graphene with a sheet diameter of 0.2 μm was added to 25 ml of deionized water, stirred magnetically at 600 r / min for 60 minutes, then placed in an ultrasonic disperser and ultrasonicated for 60 minutes to obtain a 4 mg / ml graphene solution.

[0020] Dissolve 0.2 g of 3,5-diamino-1-hydrogen-1,2,4-triazole into 25ml of deionized water, add the above graphene solution, heat at 100°C for 30min, cool down to 0°C, and dry for 48h to obtain graphite 3,5-diamino-1-hydrogen-1,2,4-triazole co-crystal coated with ene.

[0021] Grind the graphene-coated 3,5-diamino-1hydrogen-1,2,4-triazole eutectic into powder, heat it in a tube furnace to 600°C, and keep it for 4 hours to obtain a nitrogen content of 12.02% nitrogen doped graphene material.

Embodiment 2

[0023] Add 0.1 g of graphene with a sheet diameter of 100 μm into 25 ml of deionized water, stir magnetically at 600 r / min for 60 minutes, then place it in an ultrasonic disperser and ultrasonicate for 30 minutes to obtain a 4 mg / ml graphene solution.

[0024] Dissolve 0.1g of 3,5-diamino-1-hydrogen-1,2,4-triazole into 25ml of water, add the above graphene solution, heat at 70°C for 60min, cool down to 4°C, and dry for 48h to obtain a graphene package Coated 3,5-diamino-1-hydrogen-1,2,4-triazole eutectic.

[0025] Grind the graphene-coated 3,5-diamino-1hydrogen-1,2,4-triazole eutectic into powder, heat it in a tube furnace to 600°C, and keep it for 4 hours to obtain a nitrogen content of 8.02% nitrogen doped graphene material.

Embodiment 3

[0027] Add 0.1 g of graphene with a sheet diameter of 100 μm into 25 ml of deionized water, stir magnetically at 600 r / min for 60 minutes, then place it in an ultrasonic disperser and ultrasonicate for 30 minutes to obtain a 4 mg / ml graphene solution.

[0028] Dissolve 0.4g of 3,5-diamino-1hydrogen-1,2,4-triazole into 25ml of deionized water, add the above graphene solution, heat at 70°C for 60min, cool down to 4°C, and dry for 48h to obtain graphite 3,5-diamino-1-hydrogen-1,2,4-triazole co-crystal coated with ene.

[0029] Grind the graphene-coated 3,5-diamino-1hydrogen-1,2,4-triazole eutectic into powder, heat it in a tube furnace to 600°C, and keep it for 4 hours to obtain a nitrogen content of 10.02% nitrogen doped graphene material.

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Abstract

The invention discloses a preparation method of a nitrogen-doped graphene material containing 3, 5-diamino-1H-1, 2, 4-triazole. The method comprises the following steps: dispersing graphene in deionized water, adding a 3, 5-diamino-1H-1, 2, 4-triazole ethanol solution into the graphene solution, heating the solution at 50-100 DEG C for 30-60 minutes, cooling the solution to 0-4 DEG C, drying the solution to obtain a graphene-coated 3, 5-diamino-1H-1, 2, 4-triazole eutectic material, grinding the 3, 5-diamino-1H-1, 2, 4-triazole eutectic material into powder, and heating the powder at 500-800 DEG C for 3-5 hours to obtain a nitrogen-doped graphene material. According to the preparation method disclosed by the invention, 3, 5-diamino-1H-1, 2, 4-triazole is utilized to react with graphene, sothat the graphene material with relatively high nitrogen doping content is obtained. According to the material, the graphene uniformly coats the surface of the 3, 5-diamino-1H-1, 2, 4-triazole crystal, and additives such as an adhesive and the like are not needed, so that the surface performance of the 3, 5-diamino-1H-1, 2, 4-triazole crystal is completely maintained.

Description

technical field [0001] The invention belongs to the technical field of material preparation, and in particular relates to a preparation method of a nitrogen-doped graphene material based on 3,5-diamino-1 hydrogen-1,2,4-triazole. Background technique [0002] Graphene (G) is a two-dimensional honeycomb lattice material formed by the close bonding of planar single-layer carbon atoms, with a thickness of about 0.35nm, which is the thinnest two-dimensional material in the world. [0003] Graphene has no resistance for electrons to pass through, generates less heat, and has high electrical conductivity. It is the material with the best electrical conductivity known, and has unique properties. For example, the tensile strength can reach 130GPa; the carrier mobility can reach 15000-25000cm 2 / Vs (square centimeter per volt second), which can exceed 10 times that of silicon wafers; thermal conductivity can reach 5000W / mK (watt per millithermal conductivity), which is 3 times that o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/194
CPCC01B32/194C01B2204/04C01B2204/32
Inventor 朱佳平吴铛杨晓琳林若鹏方佳怡
Owner GUANGDONG UNIV OF PETROCHEMICAL TECH
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