Two-dimensional copper-based metal organic framework composite material and preparation method and application thereof

The invention discloses a two-dimensional copper-based metal organic framework composite material and a preparation method and application thereof, and belongs to the technical field of electrochemical energy storage.The preparation method comprises the steps that copper salt, trifluoroacetic acid and PVP are added into a mixed solvent of DMF and ethyl alcohol, and ultrasonic dissolution is conducted to form a solution A; h2TCPP is dissolved in a mixed solvent of DMF and ethyl alcohol, and a solution B is formed; the preparation method comprises the following steps: slowly dropwise adding a solution B into a solution A, carrying out in-situ synthesis by a solvothermal method to obtain Cu-TCPP, and mixing the Cu-TCPP solution with PDDA modified MXene nanosheets to obtain the Cu-TCPP/MXene composite material, the prepared two-dimensional copper-based frame composite material has the advantages of large specific surface area, good conductivity and rich active sites, the Cu-TCPP/MXene 2D/2D heterogeneous interfac