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Method for preparing graphene/fullerene hybrid material and application

A graphene and fullerene technology, applied in the field of materials science, can solve the problems of high energy consumption, cumbersome preparation process and high cost, and achieve the effects of large specific surface area, simple preparation method and high energy storage capacity

Inactive Publication Date: 2018-04-13
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned technical problems in the prior art, the present invention provides a kind of preparation method and application of graphene / fullerene hybrid material, the preparation method and application of described this graphene / fullerene hybrid material To solve the technical problems of cumbersome preparation process, high cost and high energy consumption of graphene / fullerene composite materials existing in the prior art

Method used

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  • Method for preparing graphene/fullerene hybrid material and application
  • Method for preparing graphene/fullerene hybrid material and application
  • Method for preparing graphene/fullerene hybrid material and application

Examples

Experimental program
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Effect test

Embodiment 1

[0025] 1) Ultrasonic dispersion of 40 mg of freeze-dried graphene oxide into 10 mL of N-methylpyrrolidone solvent to prepare a graphene oxide dispersion with a concentration of 4 mg / mL, and high-shear mixing to make the dispersion uniform.

[0026] 2) Disperse 5 mg of fullerene into 5 mL of diethylamine, and sonicate for 2 h.

[0027] 3) Mix the graphene oxide dispersion liquid and the fullerene dispersion liquid uniformly, and magnetically stir for 1 h.

[0028] 4) Put the mixed solution into a polytetrafluoroethylene reactor, then put the reactor into an electric blast drying oven for high temperature, set the temperature at 180°C for 9 hours, and cool to room temperature after the reaction.

[0029] 5) Finally, the product obtained in step 4) was washed with deionized water three times, and freeze-dried for 48 hours to obtain a graphene / fullerene hybrid material.

[0030] The graphene / fullerene hybrid material is sliced ​​and pressed with a tablet machine at a pressure of ...

Embodiment 2

[0032] 1) Ultrasonic disperse 40 mg of freeze-dried graphene oxide into 10 mL of ethylene glycol solvent to prepare a graphene oxide dispersion with a concentration of 4 mg / mL, and magnetically stir to make it uniformly dispersed.

[0033] 2) Disperse 8 mg of fullerene into 5 mL of acetonitrile, and perform high-shear mixing treatment for 2 h.

[0034] 3) Mix the graphene oxide dispersion liquid and the fullerene dispersion liquid uniformly, and magnetically stir for 1.5 h.

[0035] 4) Put the mixed solution into a polytetrafluoroethylene reactor, then put the reactor into an electric blast drying oven for high-temperature reaction, set the temperature at 200°C for 12 hours, and cool to room temperature after the reaction.

[0036] 5) Finally, the product obtained in step 4) was washed with deionized water three times, and freeze-dried for 30 hours to obtain a graphene / fullerene hybrid material.

[0037] The graphene / fullerene hybrid material is sliced ​​and pressed with a ta...

Embodiment 3

[0039] 1) Ultrasonic disperse 80 mg of freeze-dried graphene oxide into 10 mL of a mixed solvent of ethylene glycol and deionized water to prepare a graphene oxide dispersion with a concentration of 8 mg / mL, and ultrasonically disperse it evenly.

[0040] 2) Disperse 8 mg of fullerene into 5 mL of deionized water, and treat with magnetic stirring for 2 h.

[0041] 3) The graphene oxide dispersion liquid and the fullerene dispersion liquid are mixed evenly, and magnetically stirred for 1 h.

[0042] 4) Put the mixed solution into a polytetrafluoroethylene reactor, then put the reactor into an electric blast drying oven for high-temperature reaction, set the temperature at 160°C for 12 hours, and cool to room temperature after the reaction.

[0043] 5) Finally, the product obtained in step 4) was washed with deionized water for 3 times, and dried in vacuum for 20 hours to obtain a graphene / fullerene hybrid material.

[0044]The graphene / fullerene hybrid material is sliced ​​and...

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Abstract

The invention provides a method for preparing a graphene / fullerene hybrid material. Graphene oxide is frozen and dried, the processed graphene oxide is dispersed in a solvent to obtain graphene oxidedispersion liquid with the concentration of 1 to 10 mg / ml; fullerene is dispersed into a second solvent to obtain fullerene dispersion liquid with the concentration of 1 to 3 mg / ml; the graphene oxidedispersion liquid and the fullerene dispersion liquid are mixed, wherein the mass ratio of the fullerene to graphene oxide is controlled to be between 1 to 1 and 1 to 15 and the magnetic stirring is0.5 to 3 hours; hydrothermal reaction or solvothermal reaction is carried out, wherein the reaction pressure is 0.5 to 5Mpa and the reaction temperature is 100 to 220 DEG C; and the obtained product is cleaned and dried to obtain a graphene / fullerene hybrid material. When the graphene / fullerene hybrid material prepared by the method is used as a super capacitor electrode material, the high energystorage capability is realized. Moreover, the preparation method that is simple and has the good environment-friendly effect has the good market prospects.

Description

technical field [0001] The invention belongs to the field of materials science, and relates to an electrode material, in particular to a preparation method and application of a graphene / fullerene hybrid material. Background technique [0002] With the depletion of fossil energy and climate warming, energy crisis and environmental problems have become common problems faced by all mankind. The development and efficient use of renewable energy is one of the keys to deal with this problem. With the popularization of electric vehicles and the rapid development of electric / hybrid vehicles, the research and development of high-performance energy storage devices has attracted more and more attention from the society. Supercapacitor is an energy storage device between ordinary capacitors and chemical batteries, which has the advantages of both, such as high power density, high energy conversion efficiency, long cycle life, and fast charge and discharge. [0003] Graphene is a two-di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/86H01G11/24H01G11/36
CPCY02E60/13H01G11/86H01G11/24H01G11/36
Inventor 邱汉迅李幸娟闫廷龙李静杨俊和
Owner UNIV OF SHANGHAI FOR SCI & TECH
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