MXENE MATERIAL, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF

摘要

Provided are an MXene material, a preparation method therefor and an application thereof. The molecular formula of the MXene material is expressed as M _n+1X _nY ₂, wherein M is Sc, Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, or other such elements, X is an element such as C and/or N, Y is Cl, Br, I, or other such elements, and n is 1, 2, 3 or 4. The preparation method comprises: mixing a precursor MAX phase material with a transition metal chloride, a transition metal bromide, or a transition metal iodide at a molar ratio of 1:3-1:10, putting the obtained mixture in an inert atmosphere for a high-temperature reaction at 400℃-800℃ for 1-48h, then performing post treatment to obtain the MXene material. The preparation method is simple and easy, and environment friendly, and the obtained MXene material has good application in fields such as electrode materials for electrochemical energy storage, super capacitor materials, electromagnetic absorption and shielding materials, and catalysts.