首页|The fabrication of monolayer graphene by ultrasonication method
The fabrication of monolayer graphene by ultrasonication method
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Recent years, researchers pay more attention to another outstanding material that could be used in many technique areas of material synthesis and modification, which is named graphene. Graphene can be described as a one-atom thick layer of the mineral graphite, the thickness of graphene is one million times thinner than paper. As we know that carbon has the two -dimensional crystal structure. It can be stacked to form 3D graphite, rolled to form 1D nanotubes, and wrapped to form 0D fullerenes. So graphene is consisted of a single layer of carbon atoms that are bonded together in a repeating pattern of hexagons, which is a one atom thick layer of sp-bonded carbon. Due to the special atom structure, graphene has a range of unusual properties, its strong, conductive and flexible, especially, the excellent thermal conductivity and mechanical stiffness. Except those well-publicized outstanding properties, it is pretty light as well, with a 1-square meter sheet the weight only has 0. 77 milligrams. Those are significant properties in plane values for graphite. Therefore, It is need to discuss that graphene be exfoliated from graphite by the approaching of ultrasonication and centrifugation .
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