Nitrogen-doped graphene-doped NMTP-C material as well as preparation method and application thereof

Abstract

The invention relates to a nitrogen-doped graphene doped NMTP (at) C material and a preparation method and application thereof.The material is composed of NMTP (at) C and nitrogen-doped graphene coating the surface of the NMTP (at) C. The NMTP (at) C is a core-shell structure nanofiber composite material with NMTP as a core and C as a shell; the preparation method comprises the following steps: S1, preparing nitrogen-doped graphene; s2, citric acid and the nitrogen-doped graphene obtained in the step S1 are added into deionized water, continuous stirring is conducted, MnC4H6O4. 4H2O powder, NaC2H3O2 powder and NH4H2PO4 powder are added, and a mixed solution is obtained; s3, an ethanol solution of C12H28O4Ti is added into the mixed solution obtained in the step S2, deionized water and ethanol are removed, and a gel precursor is obtained; s4, drying the gel precursor obtained in the step S3; and S5, the gel precursor dried in the step S4 is placed in a protective atmosphere to be heated, the nitrogen-doped graphene doped NMTP (at) C material is obtained, nitrogen-doped graphene is doped outside NMTP (at) C, growth of NMTP crystals can be inhibited, and the electrochemical performance of the nitrogen-doped graphene doped NMTP (at) C material is promoted.

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