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Preparation method and device for graphene

A preparation device and graphene technology, applied in the graphene field, can solve problems such as hindering industrialization development, limiting preparation efficiency and output, and achieve the effects of ensuring mass production, improving production efficiency, and increasing production efficiency and output

Active Publication Date: 2013-04-03
CHONGQING GRAPHENE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when using the CVD method, the growth substrate in the vacuum chamber needs to be taken out and separated to obtain graphene, and then the growth substrate is placed in the vacuum chamber for further preparation. Therefore, graphene can only be prepared in batches, which greatly limits the preparation efficiency and output. hindered its further industrial development

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  • Preparation method and device for graphene
  • Preparation method and device for graphene

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Experimental program
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preparation example Construction

[0027] The invention provides a graphene preparation device, comprising:

[0028] air supply system;

[0029] a vacuum chamber connected to the gas supply system;

[0030] More than two sets of rollers arranged in the vacuum chamber, the rollers at least include a first roller and a second roller in the same direction of rotation, and the first roller and the second roller rotate around their respective axes ;

[0031] a driving device for respectively driving the rotation of the second roller;

[0032] The growth substrates respectively arranged on the roller group, one end of the growth substrate is wound on the first roller, and the other end is placed on the second roller, and the growth substrate can follow the movement of the second roller. turn and move;

[0033] An annealing system connected to the outlet of the vacuum chamber.

[0034] see figure 1 , figure 1 Schematic diagram of the structure of the graphene preparation device provided by the present invention...

Embodiment 1

[0061] Select a copper foil with a purity of 95%, a width of 10 cm, and a length of 100 m as the growth substrate, put the above copper foil into a container filled with acetone, ultrasonically clean it 3 times, each time for 3 minutes, and then put the copper foil into a container filled with acetone. In a container of isopropanol, ultrasonically clean it twice, each time for 3 minutes, then put the copper foil into a container filled with deionized water, and ultrasonically clean it twice, each time for 3 minutes. Then take out the copper foil, dry it with nitrogen, put the copper foil in a blast drying oven, and bake it at 70° C. for 30 minutes. Put two sets of rollers in a vacuum chamber with a length of 10m, a width of 50cm, and a height of 1m. One end of the copper foil is placed on the roller connected to the drive system, and the rest is wound on the other roller. The copper foil is in the vacuum chamber.

[0062] After the vacuum chamber is evacuated to a vacuum degr...

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Abstract

The invention provides a preparation device for graphene. The preparation device for the graphene comprises an air supply system, a vacuum chamber, more than two groups of drum sets, driving systems, growth substances and an annealing system, wherein the vacuum chamber is connected with the air supply system; the more than two groups of drum sets are arranged in the vacuum chamber, and each group of drum sets at least comprises a first drum and a second drum which rotate in the same direction; the driving systems are used for respectively driving the second drums to rotate; the growth substances are respectively formed on the drum sets; one ends of the growth substances are wound on the first drums while the other ends of the growth substances are arranged on the second drums in a lapping manner; the growth substances can move along with the rotating of the second drums; and the annealing system is connected with an outlet of the vacuum chamber. By adopting the preparation method and the preparation device for the graphene, provided by the invention, the massive and continuous production of the graphene can be realized, and therefore, the production efficiency and output of the graphene can be improved, and the industrialization development of the graphene is further promoted.

Description

technical field [0001] The invention belongs to the technical field of graphene, and in particular relates to a graphene preparation method and a graphene preparation device. Background technique [0002] Graphene is a carbon atom with sp 2 The hybrid orbitals form a hexagonal planar film with a honeycomb lattice, which is a new two-dimensional material with only one layer of carbon atom thickness. Due to the special chemical structure of graphene, it has very excellent properties in mechanics, heat, optics, electricity, etc., such as super-strong electrical conductivity, wide-spectrum high transparency, ultra-high mechanical strength and good thermal conductivity . The unique physical properties of graphene determine its broad application prospects. For example, graphene is widely used in optoelectronic devices and can be used to make flexible transparent electrodes. Flexible transparent electrodes made of graphene are compatible with the current market-leading ITO transp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/04C01B32/186
Inventor 张为国史浩飞李占成杜春雷
Owner CHONGQING GRAPHENE TECH
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