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What exactly is graphene?
The oxide graphene is known as graphene oxide. Its color is brownish-yellow and it is usually represented as GO. Common products available on the market include powder, flake, and solution. Its properties become more active after being oxidized because the functional groups containing oxygen are increased.
Graphene flakes are made from graphite powder, which has been chemically oxidized and exfoliated. A single atomic sheet of graphene can be expanded up to tens or microns in size. Its structure therefore crosses the usual scales in general chemistry and material science. Graphene is a soft material that has the properties of colloids, films and amphiphilic compounds. Due to its excellent dispersion in water, graphene has long been considered a hydrophilic compound. Graphene Oxide is in fact amphiphilic. The hydrophilicity of graphene sheets increases from the edges to the centers. The graphene-oxide layer can be used at the interface as a surfactant to reduce the energy. Its hydrophilicity has been widely acknowledged.

The application and use of graphene oxide

The graphene oxide class is an important graphene based material. Although the oxidation destroys graphene’s highly conjugated structure, it retains its surface properties and layer structure. The introduction of oxygen-containing groups not only makes graphene oxide chemically stable, but also provides surface modification active sites and a larger specific surface area for the synthesis of graphene-based/graphene oxide-based materials. Graphene dioxide, as a support carrier and precursor for the synthesis or graphene based composite materials is easy to functionize and has a high controllability. Graphene oxide can effectively disperse materials attached to metals, metal-oxides, high-molecular-polymers, etc., by providing a large surface area.

Graphene Oxide also has excellent physical, chemical and optical properties. Due to the coexistence on the edges and base of the graphene sheets of different oxygen-containing functional group, it is possible to control its conductivity. The material has many applications. The material has many applications. Surface modification of graphene-oxide composite materials has many applications. This includes polymer composites, inorganic compound material, and other composite materials.

Graphene oxide is widely used as a semiconductor electronic package due to its excellent properties in terms of electrical, mechanical and thermal properties.

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