A nanocarbon crystal

A nano-carbon crystal and carbon crystal technology, which is applied in the field of new nano-carbon crystals, can solve the problems of inability to purify clean carbon nanotubes, complicated preparation process, increase the spacing of graphite layers, etc., so as to improve grinding operations, reduce costs, The effect of improving grinding efficiency

Active Publication Date: 2017-11-03
ZHENGZHOU SINO CRYSTAL DIAMOND
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Problems solved by technology

The industrial preparation method of fullerene is mainly the combustion method, which mainly uses benzene and toluene to obtain C through incomplete combustion under the action of oxygen. 60 with C 70 At the same time, a large amount of toxic gas is discharged to pollute the environment, and subsequent purification with other organic substances is required, and the preparation process is complicated
The industrial preparation method of carbon nanotubes is the arc method. The graphite electrode is placed in a reaction vessel filled with nitrogen or argon, and an electric arc is emitted between the two electrodes. Under this condition, C 60 , amorphous C, and multi-layered carbon nanotubes, the subsequent purification process cannot remove C 60 Purify and obtain carbon nanotubes with high purity, and this preparation method consumes a lot of energy
The preparation method of graphene is mainly oxidation-reduction method. Graphene is oxidized by oxidant to increase the layer spacing of graphite, then separated by physical method, and finally reduced by chemical method to obtain graphene. The yield of graphene obtained by this method is High, but low product quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A new type of nano-carbon crystal, the average particle size is R, 0

Embodiment 2

[0031] Adopt the following method to prepare this nano-carbon crystal, its process flow block diagram is as follows figure 1 As shown, the steps are:

[0032] (1) Preliminary crushing: firstly, the diamond raw material is sent into the crushing cavity of the mechanical crusher, and is crushed by the high-speed rotating hammer head inside the crusher. The material stays in the crusher for re-crushing, and the granular material filtered through the finest sieve in the lower layer of the crusher is collected by the sieve plate (the mesh number of the sieve is not less than 32 mesh), while the material filtered by other mesh sieves can be used as Coarse materials are sold or used to prepare materials with other particle sizes; particles above 32 mesh are used for primary particle size separation by a multi-layer vibrating sieve machine. The vibrating sieve time is generally controlled at 30min~3h, and the mesh number of the sieve is sequentially arranged from 40 mesh to 500 mesh. ...

Embodiment 3

[0037] The difference between the preparation process of Example 3 and Example 1 is that the centrifugation time is 30 minutes, the rotation speed is 20000 rpm, and the precipitation and separation time is 4 days.

[0038] The particle size of the prepared nano-carbon crystals is 6-8nm.

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Abstract

The invention relates to the field of carbon material preparation. Disclosed is a novel nanocarbon crystal having an average particle diameter R and containing 99-100% of carbon. R satisfies the following condition: 0 < R ≤ 10 nm. The carbon crystal has a quasi-spherical shape. A surface carbon atom of the carbon crystal and a carbon atom in a diamond phase on an inner layer of the carbon crystal constitute a carbon atom dimer structure. The two carbon atoms of the carbon atom dimer structure are in an asymmetric arrangement. The novel nanocarbon crystal product has high crystallinity, surface activity and adsorbability, is of a regular and controllable shape, and has a loss rate controlled to be within 1%, can absorb full-spectrum solar energy, and a surface carbon atom thereof has high activity.

Description

technical field [0001] The invention belongs to the technical field of carbon materials, and in particular relates to a novel nano-carbon crystal. Background technique [0002] Carbon is the most abundant element in the world, and carbon materials are currently the most widely used materials in the world. With the changes of the times and the advancement of science, people continue to use and discover carbon, and have invented many carbon materials, such as: fullerene, carbon nanotubes, graphene, etc. Nano-carbon crystals are new in the carbon material family. a member of The emergence of new materials means the improvement of material preparation process. The industrial preparation method of fullerene is mainly the combustion method, which mainly uses benzene and toluene to obtain C through incomplete combustion under the action of oxygen. 60 with C 70 At the same time, a large amount of toxic gas is discharged to pollute the environment, and subsequent purification wit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/28B82Y40/00
CPCB82Y40/00
Inventor 郭留希赵清国张洪涛武艳强刘永奇王俊芝薛胜辉何本锋刘君丽杨晋中张建华
Owner ZHENGZHOU SINO CRYSTAL DIAMOND
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