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What is it? F ew ayer raphene ? The graphene layers consist of thin layers of carbon molecules arranged in hexagonal honeycomb lattices.
The key features of F ew L ayer G raphene
The original crystal structure of natural flake graphite is retained in the few-layer graphene. It exhibits a large form ratio (diameter/thickness), and has excellent electrical, thermal, and mechanical properties. Excellent electrical conductivity, lubrication resistance, corrosion resistance and other characteristics. The specific surface of graphene’s few layers is 400700m2/g. The thickness is 0.553.74nm. Graphene has a high surface specificity. It is easy to combine graphene with other materials like polymers and create a good interface.
Graphene Powder Properties
Other Titles Graphene nanopowder, 2D carbon, monolayer graphene,
bilayer graphene, graphene nanosheets, graphene nanoribbons,
graphene nanoplatelet
No. 1034343-98-0
Combination Formula C
Molecular Weight 12.01
Appearance Black Powder
Melting Point 3652-3697
Boiling Point 4200
Density 2.267 g/cm3
Solubility of H2O N/A
Thermal Expansion N/A
Anode Material for Lithium Battery Few Layer Graphene (CAS 1034343-398-0
Applications for F ew L ayer G raphene
As an excellent base material for industrial-scale functional composites materials, graphene layers will play a crucial role in this new industrial revolution. Graphene flakes attached inorganic microparticles can prevent the flakes being stacked repeatedly during chemical reduction. It can also encourage the formation of new materials with graphene carriers. The graphene inorganic nanocomposites have excellent performance. They can be used widely in sensors, supercapacitors batteries, batteries, catalysis, and other fields. These outstanding properties can dramatically improve the performance nanomaterials.
Few-layer graphene offers great utility in the energy sector. It is also very useful in supercapacitors, hydrogen storage, and other 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. Supercapacitors’ large surface area and excellent conductivity are conducive for nanoparticle dispersion. The transfer of electrons from nanoparticles into the graphene matrix during electrochemical cycles of the capacitor can also be inhibited by the passive film phenomenon. Using graphene to replace graphite materials in lithiumion batteries will increase the lithium storage potential of the battery and thus increase the energy density. In addition, graphene is the negative electrode material for lithiumion batteries. The diffusion path is short and conductivity high, which can dramatically improve the rate performance. For hydrogen storage, some atoms (such transition metals, alkali metallics) are first absorbed on graphene. The adsorption is the charge transfer that occurs between the increased and substrate atoms. This changes the local charge density, greatly increasing graphene’s ability to absorb hydrogen.
F Supplier ew L ayer G raphene
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