LIG material as well as preparation method and application thereof

Abstract

The invention discloses an LIG material as well as a preparation method and application thereof, and relates to the technical field of carbon materials. The preparation method of the LIG material comprises the following steps: by taking chitosan oligosaccharide as a precursor material, carrying out laser induction on the precursor material to obtain the graphene material. Chitosan oligosaccharide is used as a raw material, the graphene material is prepared by adopting a laser induction method, the required raw material chitosan oligosaccharide powder is green and environment-friendly, the method can be used for preparing a film or mixing other substances for pulping, the preparation process is simple and efficient, the production cost is low, and the method is suitable for mass production of functionalized graphene materials. The prepared LIG material is very wide in application, can be applied to preparation of supercapacitors or sensors, and can also be applied to the field of manufacturing and packaging of advanced semiconductor devices.

Description

technical field [0001] The invention relates to the technical field of carbon materials, in particular to a LIG material, its preparation method and application. Background technique [0002] Graphene is a carbon material with a two-dimensional layered structure. The structure of graphene consists of sp 2 Composed of hybrid carbon atoms, it presents a honeycomb-like two-dimensional plane with regular hexagons. The connection method of carbon atoms in the structure is the same as that of carbon materials such as zero-dimensional fullerene, one-dimensional carbon nanotubes and three-dimensional graphite. Generally speaking, graphene is a single-layer structure, but in practical applications, few-layer graphene often exhibits excellent performance. Therefore, structures with 10 layers or even thicker are collectively referred to as graphene materials in this field. Among these materials, three-dimensional porous graphene has a high surface area while maintaining high electron ...

AI Technical Summary

Problems solved by technology

[0005] (2) Chemical vapor deposition (CVD) on porous substrates can also produce 3D porous graphene, but high temperature conditions and subsequent etching and drying processes may hinder its large-scale production

[0008] The first type is polymer plastic represented by polyimide, which is relatively expensive and easy to pollute the environment;

[0009] The second category is materials rich in cellulose or lignin, which have many disadvantages: low ignition point, flame retardant treatment is often required before laser irradiation; cellulose and lignin have extremely low solubility and are not easy to manufacture film, which limits the application of laser-induced graphene to a certain extent

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