Mild discharge preparation method and device of fluorinated graphene

A technology of fluorinated graphene and preparation device, applied in chemical instruments and methods, graphene, inorganic chemistry, etc., can solve problems such as complicated preparation operations, and achieve the effects of wide source of raw materials, low energy consumption, and reduced preparation costs

Active Publication Date: 2021-04-30
GUANGDONG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This invention can adjust the fluorine content of the product fluorinated graphene by adjusting the reaction time, but the problem of tedious preparation and operation needs to be solved urgently

Method used

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  • Mild discharge preparation method and device of fluorinated graphene
  • Mild discharge preparation method and device of fluorinated graphene
  • Mild discharge preparation method and device of fluorinated graphene

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Embodiment Construction

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0030] refer to figure 1 Shown, the present invention discloses a kind of gentle discharge preparation method of fluorinated graphene, comprises the following steps:

[0031] S1: Mix the carbon source, polytetrafluoroethylene powder and active metal with a melting point higher than 450° C. and place them in the reaction tube 102 .

[0032] S2: Passing an inert gas into the reaction tube 102 . Specifically, an inert gas such as any of argon or nitrogen.

[0033] S3: Preheat the mixture according to the set voltage value and capacitance...

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Abstract

The invention discloses a mild discharge preparation method and device of fluorinated graphene, and relates to the technical field of graphene preparation. A chemical carbonization process and a physical stripping process are carried out by utilizing an electric field, so that the binding force of a graphite layer is overcome; the carbonized graphite carbon is successfully stripped into lamellas, so that the method can be suitable for almost all carbon-containing carbon sources, and the preparation raw materials are expanded to a carbon-based substance while high-efficiency and high-quality preparation of fluorinated graphene is ensured, namely, almost all carbon-containing substances can be used as raw materials of the process, so that the raw materials are wide in source and low in cost. The active metal is used as a catalyst and is electrified for preheating at first, so that the temperature of a carbon source and the temperature of the active metal are increased, and the metal activity is improved; then the voltage is increased, graphitization of the carbon source is achieved, reaction is rapid, reaction energy consumption is greatly reduced, the good conversion rate is achieved, the efficiency of preparing fluorinated graphene powder is high, and fluorinated graphene is prepared in a low-temperature environment. Therefore, low energy consumption is realized and the preparation cost is reduced.

Description

technical field [0001] The invention relates to the technical field of graphene preparation, in particular to a mild discharge preparation method and device for fluorinated graphene. Background technique [0002] Graphene, a special allotrope of carbon whose carbon atoms pass through sp 2 The hybrid orbitals and π-bonds are tightly and regularly linked to form a honeycomb-like shape with an ideal two-dimensional crystal structure. These unique structural features make graphite have good electrical and thermal conductivity in the layer, and it has good application value in the fields of batteries, catalysis, special lubricants and powder metallurgy. As a new derivative of graphene, fluorinated graphene introduces fluorine atoms on the basis of the two-dimensional planar structure of graphene, so that it obtains many new electrical properties. [0003] It has good hydrophobicity and electronic, optical and mechanical properties, and has incomparable potential application val...

Claims

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Application Information

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IPC IPC(8): C01B32/19C01B32/205
CPCC01B32/19C01B32/205
Inventor 陈云肖嘉薇丁树权高增光林灿光龙俊宇陈桪陈新高健
Owner GUANGDONG UNIV OF TECH
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