Component-adjustable MoSxSe2-x nanosheet with broadened interlayer spacing and application of MoSxSe2-x nanosheet

The invention provides a component-adjustable MoS < x > Se < 2-x > nanosheet with a broadened interlayer spacing and application thereof.The component-adjustable MoS < x > Se < 2-x > nanosheet is characterized in that a carbon-based material is used as a carrier, and a nitrogen-doped amorphous carbon (NAC) single layer is inserted between two adjacent MoS < x > Se < 2-x > single layers, so that the interlayer spacing of MoS < x > Se < 2-x > can be widened, and sodium ions can be conveniently and rapidly inserted/removed; in addition, the surface and internal electron conductivity of MoS < x > Se < 2-x > can be improved, so that electron transmission is fully accelerated; in addition, by improving the proportion of Se atoms in MoS < x > Se < 2-x >, the conductivity is increased, the interlayer spacing is enlarged, anion defect sites are enriched, and the theoretical capacity is improved by improving the proportion of S atoms. The obtained product is unique in structure, regular in morphology, uniform in compon