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Fullerene nano fiber film, porous carbon fiber film and preparation method thereof

A technology of porous carbon fiber and nanofiber, which is applied in the direction of nano-carbon and fullerene, can solve the problems of low film-forming efficiency, expensive film-forming equipment, and complicated operation steps, so as to simplify the operation steps, improve the film-forming efficiency, and operate simple effect

Active Publication Date: 2021-02-19
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the above defects or improvement needs of the prior art, the present invention provides a fullerene nanofiber film, a porous carbon fiber film and a preparation method thereof, thereby solving the problems of expensive film-forming equipment, complicated operation steps, and film-forming problems in the prior art. less efficient technical issues

Method used

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  • Fullerene nano fiber film, porous carbon fiber film and preparation method thereof
  • Fullerene nano fiber film, porous carbon fiber film and preparation method thereof
  • Fullerene nano fiber film, porous carbon fiber film and preparation method thereof

Examples

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preparation example Construction

[0039] Such as figure 1 Shown, a kind of preparation method of fullerene nanofiber film comprises the steps:

[0040] (1) Fully dissolving fullerene into a good solvent of fullerene to obtain a mixed solution, adding a poor solvent of fullerene to the mixed solution, forming fullerene nanofibers at the interface of a good solvent of fullerene and a poor solvent ;

[0041] (2) Dispersing the separated fullerene nanofibers in a poor solvent of fullerenes to obtain a dispersion liquid, which is sequentially suction-filtered and dried to obtain a fullerene nanofiber film.

[0042] Further, the specific implementation of the suction filtration is:

[0043] A filter membrane is placed on the mouth of the suction filter bottle, and the dispersion liquid is poured into the filter membrane at one time, so that it is evenly dispersed on the filter membrane, and fullerene nanofiber films of different sizes are obtained by changing the caliber of the suction filter bottle. The ratio of t...

Embodiment 1

[0046] A method for preparing a fullerene nanofiber film and a porous carbon fiber film derived therefrom, comprising the steps of:

[0047] Step 1: First add 4mg C 60 Dissolve in 2ml m-xylene, ultrasonic 20min to make C 60 Fully dissolve, then slowly inject 4ml of isopropanol into the above-mentioned mixed solution along the wall of the sample bottle, and stand at room temperature for 24h to observe that the fullerene nanofibers appear in the mixture of m-xylene (good solvent) and isopropanol. (Poor solvent) at the interface; Wash the above-mentioned one-dimensional fullerene nanofiber more than 3 times repeatedly with isopropanol afterwards, avoid the destruction to fiber to remove residual solvent molecule, finally the fiber of gained is dispersed in isopropanol middle.

[0048] Step 2: 50 mg of C obtained in Step 1 60 The dispersion solution in isopropanol is simply suction filtered, and the diameter of the suction filter bottle is 5 cm, to obtain a wet fullerene nanofi...

Embodiment 2

[0051] A method for preparing a fullerene nanofiber film and a porous carbon fiber film derived therefrom, comprising the steps of:

[0052] Step 1: First add 4mg C 70 Dissolve in 2ml pyridine, sonicate for 20min to make C 70 Fully dissolve, then slowly inject 4ml of isopropanol into the above-mentioned mixed solution along the wall of the sample bottle, leave it at room temperature for 24h to observe that fullerene nanofibers appear in pyridine (good solvent) and isopropanol (bad solvent) Solvent) at the interface; then repeatedly wash the above-mentioned one-dimensional fullerene nanofibers with isopropanol more than 3 times to remove residual solvent molecules to avoid damage to the fibers, and finally the resulting fibers are dispersed in isopropanol.

[0053] Step 2: 60 mg of C obtained in Step 1 70 The dispersion solution in isopropanol was subjected to a simple suction filtration process, and the caliber of the suction filtration bottle was 5 cm to obtain a wet fuller...

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Abstract

The invention discloses a fullerene nano fiber film, a porous carbon fiber film and a preparation method thereof, and belongs to the field of carbon fiber material preparation. Fullerene is fully dissolved in a good solvent of fullerene to obtain a mixed solution, a poor solvent of fullerene is added into the mixed solution, fullerene nano fibers are formed on an interface between the good solventof fullerene and the poor solvent of fullerene; and the separated fullerene nano fibers are dispersed in the poor solvent of fullerene to obtain a dispersion liquid, and the dispersion liquid is sequentially subjected to suction filtration and drying to obtain the fullerene nano fiber film. The fullerene fibers and the solvent are rapidly separated through a suction filtration method, the film forming efficiency is greatly improved, expensive film forming equipment is not needed, the operation steps are simplified, and the preparation cost of the fullerene film is greatly reduced. The fullerene-derived carbon fiber film with a porous structure can be obtained by carrying out simple high-temperature annealing treatment on the fullerene nano fiber film.

Description

technical field [0001] The invention belongs to the field of preparation of carbon fiber materials, and more specifically relates to a fullerene nanofiber film, a porous carbon fiber film and a preparation method thereof. Background technique [0002] The microstructure of carbon fiber is similar to the basic structure of graphite, but it is not the ideal graphite layered structure. The arrangement of carbon atoms between each layer plane of carbon fiber is not as ideal and regular as that of graphite. The carbon atoms between each layer are connected by covalent bonds, and the layers are connected by van der Waals force, so the edges of the layers are not neat and are all directions. heterosexual material. Compared with the lattice structure of graphite, there are irregular translations and rotations between the carbon atomic layers of carbon fibers, but because the carbon atomic layers connected by covalent bonds are roughly arranged parallel to the fiber axis, it has a h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/156C01B32/152
CPCC01B32/156C01B32/152
Inventor 卢兴郭子乾何志敏
Owner HUAZHONG UNIV OF SCI & TECH
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