What is graphene dioxide?
Graphene-oxide, also known as graphene dioxide (grapheneoxide), is an oxide made from graphene. It is often represented by GO and has a brownish-yellow color. It is available in powder, flake, or solution. Oxidation causes the product to have oxygen-containing functional chains that increase in activity, making it more active than graphene. The properties of the product can be further improved by using various reactive oxygen-containing group.
Graphene powder is the end product of exfoliation and chemical oxidation. Graphene oxide flakes can be described as graphene powder. The graphene oxide atomic layer is one that can expand to many tens of millimeters in size. Because of this, it is able to transcend the traditional scales in materials science and general chemical chemistry. You can consider graphene dioxide a unique type of soft material. It has characteristics similar to polymers, colloids and films as well as amphiphilic molecules. Due to its high water dispersibility, graphene dioxide has been considered hydrophilic. However, graphene oxide has been shown to be amphiphilic. The graphene layer’s edges show hydrophilicity. Graphene dioxide can be used as an interface surfactant to reduce energy. Its hydrophilicity has been widely acknowledged.
The use of graphene dioxide:
This class of graphene based materials is important. Although the graphene’s highly-conjugated structure has been destroyed by oxidation, graphene still retains its special properties and layered 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. The precursor to the production of graphene-based, composite materials is graphene dioxide. It can be functionalized easily and it has excellent controllability. When compounding with metals or metal oxides, high-molecular polymers and others, graphene oxide can offer a wide surface area for dispersing attached materials effectively and preventing agglomeration.
Grapheneoxid also has exceptional physical, chemical and optical properties. Because of its coexistence with various oxygen-containing groups at the edges and base of graphene sheet framework graphene oxide is able to be controlled. The types and numbers of these oxygen-containing groups can be used to modify its conductivity as well as its band gap. There are many uses for this material. Graphene dioxide is a novel carbon material that has excellent performance. The material features a large surface area with many functional groups and a great specific surface. The wide variety of uses for grapheneoxid composite materials (including polymer composites and inorganic compounds materials) has led to the development of a new research field: surface modification.
Graphene oxide is used extensively in semiconductor electronic packaging due to its outstanding electrical, thermal, and mechanical characteristics.
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