What is the difference between single-layer graphene and multi-layer graphene?
What is graphene?
Graphene is a two-dimensional material composed of carbon atoms with only one layer of atomic thickness. It is a hexagonal flat film like a honeycomb. In fact, it is one of the layers of multi-layer graphite, that is, graphite. ene.
What are the properties of graphene?
New nanomaterials with the thinnest, strongest, and best electrical and thermal conductivity among known materials have been found so far;
Ultra-thin, with a thickness of 0.335nm (1mm = 1000um 1um = 1000nm, about 1/200,000 of a human hair)
The super strength is 200 times that of ordinary steel.
Strong specific surface area 2630㎡/g
Ultra-high thermal conductivity, the thermal conductivity is as high as 5 X 103W/m.K, which is dozens of times that of copper, iron, aluminum and other metals.
Super conductive, the carrier mobility is 1/300 of the speed of light and 140 times that of silicon.
How to distinguish single layer graphene?
Using the light transmittance of single-layer graphene, under normal circumstances, single-layer graphene cannot be observed by the naked eye. After all, the light transmittance is too strong, so it is basically transparent, not black or gray; and there is heat The thermal conductivity of graphene is very fast, so the heating rate is also very fast after power-on, the heating is also very uniform, and the uneven heating is very slow, basically it is not a single-layer graphene.
What is the difference between single layer and multi layer?
The effect that graphene can achieve is different according to the number of layers. According to the current standard, graphite with less than ten layers can be called graphene, and the number of graphene layers that need to be used in different fields is also different.
For example, more than two layers of graphene may be used in the industrial field, while single-layer graphene may be used in the field of physical therapy, because only the far-infrared band released by the single-layer graphene is closest to the far-infrared band of the human body, which is most beneficial to the human body. absorption, so as to achieve physical therapy effect.
Therefore, it is not that the lower the number of layers, the better, but that different layers have different uses. Therefore, when choosing a preparation method, the controllability of graphene prepared by this preparation method will be considered.
High quality graphene manufacturer
Luoyang Moon & Star New Energy Technology Co., LTD, founded on October 17, 2008, is a high-tech enterprise committed to the research and development, production, processing, sales and technical services of lithium ion battery anode materials. After more than 10 years of development, the company has gradually developed into a diversified product structure with natural graphite, artificial graphite, composite graphite, intermediate phase and other negative materials (silicon carbon materials, etc.). The products are widely used in high-end lithium ion digital, power and energy storage batteries.If you are looking for Lithium battery anode material,click on the needed products and send us an inquiry：sales@graphite-corp.com
