▎ 摘　　要

NOVELTY - Tungsten selenide/graphene/carbon nanofiber composite comprises tungsten selenide, graphene sheet and carbon nanofiber. The graphene sheet is wrapped on the surface of carbon nanofibers to form stable core structure of graphene/carbon nanofiber composite material. The tungsten selenide is tabular and is evenly distributed on the surface of graphene/carbon nanofiber composite. USE - Tungsten selenide/graphene/carbon nanofiber composite. ADVANTAGE - The composite has simple preparation process and low raw material cost and is easy to operate and environment-friendly. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of tungsten selenide/graphene/carbon nanofiber composite comprising preparing polyacrylonitrile spinning solution under mixing and oil bath conditions, preparing polyacrylonitrile nanofibers by electrospinning, preoxidizing polyacrylonitrile nanofibers, dispersing oxidized graphite in deionized water, immersing in graphene oxide dispersion, self assembling graphene oxide on the surface of oxidized polyacrylonitrile nanofibers, cleaning, drying, subjecting high temperature carbonization, weighing selenium powder, preparing selenium solution and growing tungsten selenide nanosheets on the surface of graphene/carbon nanofiber composite.