Nanostructured WSe2/C composites as anode materials for sodium-ion batteries

Abstract

Carbon-coated WSe₂ nanomaterials are synthesized using solid-state reaction. The 75.57% crystal WSe₂ nanoparticles are uniformly dispersed on a carbon matrix to form WSe₂/C nanomaterials. The WSe₂/C nanomaterials exhibit high discharge capacity and excellent cycling stability, which should be attributed to the buffering effect of the carbon matrix and improved conductivity of the composites.