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Method for preparing graphene material based on 5,5'-diamino-3,3'-1,2,4-triazole cobalt salt

A triazole cobalt salt, graphene technology, applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve the problems of limited application and the difficulty of compounding graphene materials, to expand applications and improve free load. The density of the fluid, the effect of enhancing the interaction

Inactive Publication Date: 2020-04-10
GUANGDONG UNIV OF PETROCHEMICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The preparation method of a graphene material based on 5,5'-diamino-3,3'-1,2,4-triazole cobalt salt provided by the present invention aims to solve the problem that graphene materials are not easy to combine with other materials , resulting in a problem that limits the application

Method used

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  • Method for preparing graphene material based on 5,5'-diamino-3,3'-1,2,4-triazole cobalt salt
  • Method for preparing graphene material based on 5,5'-diamino-3,3'-1,2,4-triazole cobalt salt
  • Method for preparing graphene material based on 5,5'-diamino-3,3'-1,2,4-triazole cobalt salt

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Effect test

Embodiment 1

[0020] 0.1 g of graphene with a sheet diameter of 100 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.

[0021] Dissolve 0.4 g of 5,5'-diamino-3,3'-1,2,4-triazole cobalt salt into 25ml of deionized water, add the above graphene solution, heat at 100°C for 30min, cool down to 0°C, After drying for 48 hours, a graphene-coated 5,5'-diamino-3,3'-1,2,4-triazole cobalt salt eutectic was obtained.

[0022] Grind the graphene-coated 5,5'-diamino-3,3'-1,2,4-triazole cobalt salt eutectic into powder, heat it in a tube furnace to 600°C, and keep it for 4 hours. A co-doped graphene material with a nitrogen content of 15.7% and a cobalt content of 0.87% was obtained.

Embodiment 2

[0024] 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.

[0025] Dissolve 0.2g of 5,5'-diamino-3,3'-1,2,4-triazole cobalt salt into 25ml of deionized water, add the above graphene solution, heat at 70°C for 60min, cool down to 4°C, After drying for 48 hours, a graphene-coated 5,5'-diamino-3,3'-1,2,4-triazole cobalt salt eutectic was obtained.

[0026] Grind the graphene-coated 5,5'-diamino-3,3'-1,2,4-triazole cobalt salt eutectic into powder, heat it in a tube furnace to 600°C, and keep it for 4 hours. A co-doped graphene material with a nitrogen content of 12.4% and a cobalt content of 0.56% was obtained.

Embodiment 3

[0028] 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.

[0029] Dissolve 0.1g of 5,5'-diamino-3,3'-1,2,4-triazole cobalt salt into 25ml of deionized water, add the above graphene solution, heat at 70°C for 60min, cool down to 4°C, After drying for 48 hours, a graphene-coated 5,5'-diamino-3,3'-1,2,4-triazole cobalt salt eutectic was obtained.

[0030] Grind the graphene-coated 5,5'-diamino-3,3'-1,2,4-triazole cobalt salt eutectic into powder, heat it in a tube furnace to 600°C, and keep it for 4 hours. A doped graphene material with a nitrogen content of 8.19% and a cobalt content of 0.53% was obtained.

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Abstract

A method for preparing a graphene material based on 5,5'-diamino-3,3'-1,2,4-triazole cobalt salt is disclosed. The method includes dispersing graphene into deionized water; adding an aqueous solutionof the 5,5'-diamino-3,3'-1,2,4-triazole cobalt salt; heating at 50-100 DEG C for 30-60 min; cooling to 0-4 DEG C; drying to obtain a 5,5'-diamino-3,3'-1,2,4-triazole cobalt salt eutectic substance coated with graphene; grinding the substance into powder; and heating the powder in a tubular furnace at 500-800 DEG C for 3-5 h to obtain the nitrogen--cobalt co-doped graphene material. In the obtainedmaterial, 5,5'-diamino-3,3'-1,2,4-triazole cobalt salt crystals are evenly coated with the graphene, and surface performance of the 5,5'-diamino-3,3'-1,2,4-triazole cobalt salt crystals can be completely maintained without the use of an adhesive or other auxiliary agents.

Description

technical field [0001] The invention belongs to the technical field of material preparation, and in particular relates to a preparation method of a graphene material based on 5,5'-diamino-3,3'-1,2,4-triazole cobalt salt. 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 of diamon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/194
CPCC01B32/194
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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