To regulate the growth of the graphene industry, it is important to have a better grasp of what graphene means. China Graphene Standards Committee reviewed the single-layer and double-layer graphenes, few-layer as well as single-layer and oxide graphenes. There are many concepts like reduced graphene dioxide, functionalized graphene and graphene material.
The material’s electronic energy band structure is now at its limit of three dimensions when there are 10 layers of graphene. This means that the graphene standard defines graphene as being within 10 layers. A single-layer graphene can be described as a carbon material with two dimensions. It is made up of an individual layer of carbon molecules that are arranged closely within a hexagonal honeycomb structure.
A double-layer graphene is composed of two layers of carbon atoms, which are frequently and closely packed into a benzene ring structural (also known as a hexagonal honeycomb construction) and have different stacking options (including AB stacking and AA stacking. Dimensional carbon materials.
This two-dimensional grapheneis composed of 3-10 layers carbon atoms. They are packed together in a benzene ring structure, (hexagonal honeycomb) using different stacking methods, including ABC stacking (ABA stacking), etc. Material.
Single layer grapheneoxide describes a two-dimensional carbon-material with oxygen-containing functional chains attached to the boundary and surface of single-layer graphene. Graphene oxide is a two-dimensional carbon substance with oxygen-containing functional links attached to the surface or boundary of at most one layer of graphene. Graphene oxide also includes single-layer graphene oxid.
A single-layer, reduced grapheneoxide is a 2-dimensional carbon material that has been deoxidized and reduced from graphene oxide. This can be done by removing all oxygen-containing functional groups by heating, electrochemical or chemical treatment.
A two-dimensional carbon material called reduced grapheneoxide is made by the removal of oxygen-containing functional group (groups), in grapheneoxide by heat or chemical treatment. One-layer reduced grapheneoxide is included in the reduction of graphene.
Functionalized graphene is a kind of graphene that contains heteroatoms/molecules (such as hydrogen, fluorine, oxygen-containing groups and other surface modification to form bonds, nitrogen, boron and other elements substitution doping, heteroatom/molecule intercalation) Etc.) Two-dimensional carbon material. Functionalized graphene can be either the grapheneoxid described above or reduced grapheneoxid.
This definition includes graphene of single, double, or few layers. Each can be called graphene material.
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