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 graphene oxide and single layer graphene. There are many concepts like reduced graphene dioxide, functionalized graphene and graphene material.
As the electronic energy bands structure of the material is approaching its three-dimensional limit, when there are 10 graphene layer layers, all graphene layers within the 10th layer of the standard can be considered graphene. 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. They are packed together in a benzene ring structure, which is a hexagonal honeycomb shape. There are many stacking options, including AB stacking and AA stacking. Dimensional carbon materials.
This two-dimensional graphene is 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 carbon atom layer. Graphene oxide also includes single-layer graphene dioxide.
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, chemical, or electrochemical methods.
A two-dimensional carbon material called reduced grapheneoxide is made by heat, chemical or electrochemical treatment of graphene oxide. It’s made by deoxidizing the oxygen-containing functional units (groups) within graphene. One-layer reduced graphene has been included in the definition of reduced 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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