What is Few Layer Graphene?

Author : Trunnano

Update time : 2022-03-18 10:20:44

What is Few Layer Graphene?
The few graphene layers are made up of ultra-thin layers of carbon atoms arranged in a hexagonal honeycomb lattice.
The main features of Few Layer Graphene
The few-layer graphene inherits the original crystal structure and characteristics of natural flake graphite; it has a large shape ratio (diameter/thickness ratio) and excellent electrical, thermal and mechanical properties. Has excellent electrical conductivity, lubrication, corrosion resistance, high temperature resistance and other characteristics. The specific surface of the few layers of graphene is 400～700㎡/g, and the thickness is 0.55～3.74nm. Graphene has a high specific surface. It is easy to be uniformly compounded with other materials such as polymer materials and form a good compound interface.

Graphene Powder Properties
Other Names	Graphene nanopowder, 2D carbon, monolayer graphene, bilayer graphene, graphene nanosheets, graphene nanoribbons, graphene nanoplatelet
CAS No.	1034343-98-0
Compound Formula	C
Molecular Weight	12.01
Appearance	Black Powder
Melting Point	3652-3697℃
Boiling Point	4200℃
Density	2.267 g/cm3
Solubility in H2O	N/A
Thermal Expansion	N/A

Lithium Battery Anode Material Few Layer Graphene CAS 1034343-98-0

The applications of Few Layer Graphene
Few layers of graphene, as an excellent basic material for the preparation of industrial-scale functional composite materials, will play an extremely important role in the new round of industrial revolution. Graphene flakes attached to inorganic nanoparticles can effectively prevent these flakes from being stacked repeatedly during the chemical reduction process? It can also promote the formation of a new class of materials with graphene as a carrier. Graphene-inorganic nanocomposites show excellent performance These excellent properties can be widely used in emission displays, sensors, supercapacitors, batteries, catalysis and other fields, which can significantly improve the performance of nanomaterials, so that the most promising application materials in nanotechnology can be widely used in industrial applications.
Few-layer graphene has great application value in the energy field, and has great application value in hydrogen storage, natural gas storage, supercapacitors, and lithium battery applications. Single-layer/few-layer graphene with fewer defects in structure is currently the most widely used negative electrode material for commercial lithium-ion batteries; and defect-rich, few-layer graphene is currently the main electrode material for supercapacitors. In the application of supercapacitors, the large specific surface area of the few layers of graphene is conducive to the high dispersion of nanoparticles, and the excellent conductivity is conducive to the transfer of electrons from the nanoparticles to the graphene matrix during the electrochemical process, which can effectively inhibit the super The passive film phenomenon formed by agglomeration occurs during the electrochemical cycle of the capacitor, which improves the cycle performance of the electrode material. Using graphene to replace traditional graphite materials in lithium-ion batteries will greatly increase the lithium storage capacity of the negative electrode, thereby increasing the energy density of lithium-ion batteries; in addition, when graphene is used as the negative electrode material of lithium-ion batteries, lithium ions are in the graphene material. The diffusion path is relatively short and the conductivity is high, which can greatly improve its rate performance. In terms of hydrogen storage, when some atoms (such as transition metals, alkali metals) are first adsorbed on the surface of a few layers of graphene, the adsorption The charge transfer occurs between the increased atom and the substrate, which changes the local charge density, thereby greatly increasing the adsorption capacity of graphene for hydrogen.
The supplier of Few Layer Graphene
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