How far is the road to graphene industrialization and how to produce graphene

There are several different methods depending on the raw material and application. Generally speaking, there are vapor deposition method, redox method, and intercalation method.

1 The meteorological deposition method is mainly carbon-containing gas (methane, vague), under certain temperature and pressure conditions, carbon atoms attach to the growth substrate to form a single layer of carbon structure material and gradually grow. Advantages: The obtained graphene has a good structure, and the size is not limited by raw materials.

Disadvantages: The preparation process is complex and the production efficiency is low.

2. The redox method is to use oxidant to oxidize graphite layer by layer, and use ultrasonic and other methods to peel off the oxidized layer. After that, the graphite oxide layer is reduced by using a reducing agent to obtain graphene. Pros:

Low cost and high production efficiency. Disadvantages: The size of the prepared graphene is determined by the raw material, and the oxidant and reducing agent used may pollute the environment.

3. The intercalation method is to fill the interlayer material into the interlayer gap of graphite, and overcome the van der Waals force between the layers to disperse the layers to obtain graphene. The method is still in the research and development phase.

2. China is one of the top three graphene countries in the world.

Judging from the data, China's proportion of the world's reserves is definitely the highest, and it is about the same as rare earths. Since this output is high and the application range is wide, the state has come up with relevant policies to support the development of this industry, and the position of resource strategy has begun to appear. It's just that I personally think it's a pity not to make it the same as rare earths, and it's a pity to take up so much and sell it so cheaply.

However, the use of raw materials is different, and the strategy is different. It still depends on the degree of contribution to society in the field.

Third, the layout direction of graphene industry chain cloth.

From the statistical point of view, the actual enterprises that actually carry out graphene-related business are currently about 2,600, with about 1,400 upstream enterprises, about 200 in the midstream, and about 600 in the downstream. However, there are very few relevant listed companies in A-shares, most of which are laid out by acquisition, and there is basically no graphene listed company with a large proportion of main business.

Such a trillion, such a trillion, according to your brainless bricks, China will become the largest economy in two years.

Human beings are originally carbon-based life, so the future of carbon-based graphene is immeasurable.

In the future, many industries will become billions.

It is equivalent to the discovery of oil by early humans, and its space for play is huge, and there will be applications in all walks of life, so the wealth is immeasurable.

The special structural form of graphene makes it the hardest and thinnest in the world, and it also has strong toughness, electrical and thermal conductivity. These and their special characteristics make it have an incomparably huge space for development, which can be applied to a large number of fields such as electronics, aerospace, optics, energy storage, biomedicine, and daily life in the future.

Just like the discovery of oil by early humans, its room for play is huge.

Graphene has excellent optical, electrical, and mechanical properties, and has important application prospects in materials science, microfabrication, energy, biomedicine, and drug delivery, so it has great development potential.

The special structural morphology of graphene makes it the hardest and thinnest in the world.

Graphene's good conductivity and light transmittance make it have a very good application prospect in transparent conductivity electrodes. Touch screens, liquid crystal displays, organic photovoltaic cells, organic light-emitting diodes, etc., all require good transparent conductivity electrode materials. In particular, the mechanical strength and flexibility of graphene are better than those of the commonly used material indium tin oxide.

If you talk nonsense and don't pay taxes, it doesn't matter if you talk about it.

The gorgeous family owns the two largest graphene companies among the listed companies in the country, and the future is incredible!

This may be speculation, but it's hard to say at the moment.

Because it's a very high-tech industry.

Because the technology in this area should be very meaningful.

Shengquan Group in Jinan, Shandong. In cooperation with well-known domestic universities, it took 7 years to create the first biomass graphene from corn cob cellulose, and the world's first biomass graphene industrial production line was built and put into operation. It has obtained national patents, and is at the advanced level in the world, which is the first in the world.

Biomass graphene is made from natural green plant straw as raw material and prepared by thermal cracking method based on the principle of group coordination carbon separation (national invention patent number: ZL 2015 1), which has obvious far-infrared, antibacterial and antibacterial characteristics. This method has been included in the Graphene Alliance Standard "Terms, Definitions and Codes of Graphene Materials" Common Preparation Methods for Graphene in China issued by the China Graphene Industry Technology Innovation Strategic Alliance.

There are many ways to prepare, and mass production remains to be solved!

Vapor phase chemical deposition, redox method, many methods have been reported in the literature.