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Abstract

MXenes are a new family of two-dimensional transition metal carbides and carbonitridestransition metal carbide/nitride two-dimensional crystal materials£¬with graphene-like structure.Their chemical formulas are Mn+1Xn£¬where M is an early tansition metal,X is C and/or N£¬n = 1£¬2£¬3£®These materials can be made by exfoliating layered ceramic materials (MAX phases) using hydrofluoric acid£®They have good mechanical£¬electronic£¬magneticproperties£®

This paper summarizes the two-dimensional crystalline material and phase characteristics of MAX, MAX phase belongs to the hexagonal and different ways according to its accumulation can be divided into different classes, and then introduced MXene relevant background.In addition, MXene prepared about the most is by now a hydrofluoric acid solution at room temperature erosion parent MAX phase is obtained.MXene structure determines its unique structure and layered intercalation determine its unique performance in the electrical, magnetic, thermal, mechanical and optical aspects.Meanwhile, MXene materials have considerable prospects electrode materials, catalysis, hydrogen storage areas, and areas of composite materials in terms of absorption. Although so far mixed reviews for MXene material, but the material development MXene expanded the scope of the family of two-dimensional material, and there will be greater development.

The main contents of this paper include the following aspects: The first chapter, the introduction, describes the introduction of two-dimensional material graphene and leads MXene. The second chapter, MXene preparation. MXene introduces the development process of their preparation experience. Hydrofluoric acid solution at room temperature and erosion from the parent MAX phase, introduces the preparation works. The third chapter, MXene structure and properties. This part by MXene intercalated layered structure and presentation summarizes the performance characteristics of the electric, magnetic, optical, power, heat and so on. The fourth chapter, mainly from the electrode materials, catalysis, hydrogen storage areas, composite materials and adsorption performance, it introduces its application. The

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