The composition and classification of MXene are described,the preparation methods for MXene are illustrated in detail,and the influence of the chemical structure of MXene on its properties is analyzed.The research status on MXene's application in surface coating aspects such as sensor,water treatment,metal corrosion protection,and electromagnetic shielding is summarized.Finally,an outlook is made on the preparation of MXene materials,and their challenges and development trends in surface coating application.It is proposed that non-toxic or low-toxic etching of MXene,high efficiency intercalation and end-group functional group modulation are the future directions in the preparation of MXene materials.In addition,increasing the interfacial force with other materials is a critical challenge for MXene applications.
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