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Preparation method of phosphorus-nitrogen double-doped graphene added with carbon nanoparticles

A technology of carbon nanoparticles and graphene, applied in the direction of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of complex process, easy structure agglomeration, high cost, etc., and achieve simple and safe preparation method, The effect of improving catalytic activity

Inactive Publication Date: 2019-10-15
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Purpose of the invention: In view of the above problems, the present invention proposes a method for preparing phosphorus-nitrogen double-doped graphene with carbon nanoparticles added, so as to solve the complex process and high cost existing in the existing phosphorus-nitrogen double-doped graphene preparation technology And the structure is easy to reunite and other shortcomings

Method used

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  • Preparation method of phosphorus-nitrogen double-doped graphene added with carbon nanoparticles
  • Preparation method of phosphorus-nitrogen double-doped graphene added with carbon nanoparticles
  • Preparation method of phosphorus-nitrogen double-doped graphene added with carbon nanoparticles

Examples

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Effect test

Embodiment 1

[0025] First, grind 0.1g of flake graphene oxide for 30min to powder, place it in 50mL ethanol solution with a concentration of 99.9%, and stir evenly for 2h under constant temperature water at 40°C to obtain a graphene oxide suspension; then weigh 1g of Hexachlorocyclotriphosphazene was dissolved in graphene oxide suspension, and stirred evenly in constant temperature water for 2 hours at 60°C to fully dissolve it in ethanol solution; in the mixture of hexachlorocyclotriphosphazene and graphene oxide Add 5 mg of activated carbon nanoparticles solid powder to the suspension, ultrasonically disperse at room temperature for 2 hours, and then uniformly stir for 4 hours at 40° C. using constant temperature water after the carbon nanoparticles are completely dispersed. After the mixed solution turns into a viscous black glue state, place it in a vacuum drying oven, and dry it in a vacuum at 80°C for 12 hours to completely evaporate the remaining ethanol, and the mixture of hexachlor...

Embodiment 2

[0027] Firstly, grind 0.2g flake graphene oxide for 30min to powder, place it in 50mL ethanol solution with a concentration of 99.9%, and stir evenly for 2h under constant temperature water at 40°C to obtain graphene oxide suspension; then weigh 2g of Hexachlorocyclotriphosphazene was dissolved in graphene oxide suspension, and stirred evenly in constant temperature water for 2 hours at 60°C to fully dissolve it in ethanol solution; in the mixture of hexachlorocyclotriphosphazene and graphene oxide Add 10 mg of activated carbon nanoparticles solid powder to the suspension, ultrasonically disperse at room temperature for 2 hours, and then uniformly stir for 4 hours at 40°C using constant temperature water after the carbon nanoparticles are completely dispersed. After the mixed solution turns into a viscous black glue state, place it in a vacuum drying oven, and dry it in a vacuum at 80°C for 12 hours to completely evaporate the remaining ethanol, and the mixture of hexachlorocyc...

Embodiment 3

[0029] Firstly, grind 0.5g flake graphene oxide for 30min to powder, place it in 50mL ethanol solution with a concentration of 99.9%, and stir evenly for 2h under constant temperature water at 40°C to obtain a graphene oxide suspension; then weigh 5g of Hexachlorocyclotriphosphazene was dissolved in graphene oxide suspension, and stirred evenly in constant temperature water for 2 hours at 60°C to fully dissolve it in ethanol solution; in the mixture of hexachlorocyclotriphosphazene and graphene oxide Add 50 mg of activated carbon nanoparticles solid powder to the suspension, ultrasonically disperse at room temperature for 2 hours, and then uniformly stir for 4 hours at 40°C using constant temperature water after the carbon nanoparticles are completely dispersed. After the mixed solution turns into a viscous black glue state, place it in a vacuum drying oven, and dry it in a vacuum at 80°C for 12 hours to completely evaporate the remaining ethanol, and the mixture of hexachloroc...

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Abstract

The invention discloses a preparation method of phosphorus-nitrogen double-doped graphene added with carbon nanoparticles. The method comprises the steps of: placing 0.1-0.5g of flaky graphene oxide in an ethanol solution, and uniformly stirring the mixed solution to obtain a graphene oxide suspension; then weighing 1-10g of hexachlorocyclotriphosphazene, dissolving the hexachlorocyclotriphosphazene in the graphene oxide suspension for uniform stirring; adding 5mg-50mg of active carbon nano particle solid powder into the mixed suspension of the hexachlorocyclotriphosphazene and the graphene oxide, then performing ultrasonic dispersion, and uniformly stirring the mixture; placing the mixed solution in a vacuum drying oven to completely evaporate the residual ethanol after the mixed solutionis changed into a black glue-packed viscous state; washing the dried hexachlorocyclotriphosphazene and the graphene oxide solid with deionized water for 3-5 times, performing drying and grinding uniformly, and performing sieving with a 20-40-mesh sieve to obtain mixture powder of hexachlorocyclotriphosphazene and graphene oxide; and putting the mixture powder of hexachlorocyclotriphosphazene andgraphene oxide into a tubular furnace for heating to a temperature of 900 DEG C under an argon condition to perform calcining for 1-2 hours, and performing cooling to a room temperature to obtain thephosphorus-nitrogen double-doped graphene added with carbon nanoparticles.

Description

technical field [0001] The invention belongs to the field of non-metallic catalytic materials, in particular to a method for preparing phosphorus-nitrogen double-doped graphene with carbon nanoparticles added. Background technique [0002] Fuel cell power generation system is considered to be one of the most promising new energy power generation technologies due to its advantages of no noise pollution and less harmful gas emissions. Platinum / carbon is the most widely used electrode catalyst material in fuel cells because of its high catalytic activity for both oxygen molecules and hydrogen atoms. However, because platinum is a noble metal, it is expensive and easily deactivated by catalyst poisoning, which seriously hinders the commercial promotion and application of fuel cell technology. Therefore, the development of non-precious metal catalysts with high activity and stability is crucial to promote the full-scale use of fuel cells. [0003] In recent years, doped graphen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/88H01M4/90B82Y30/00
CPCH01M4/8825H01M4/9091H01M4/90B82Y30/00Y02E60/50
Inventor 陈振乾韩超灵
Owner SOUTHEAST UNIV