Sodium ion storage properties of WS2-decorated three-dimensional reduced graphene oxide microspheres

Abstract

Layered WS₂ nanosheet-decorated three-dimensional reduced graphene oxide (3D-RGO) microspheres are prepared as anode materials for sodium ion batteries. WO₃ nanocluster-decorated 3D RGO microspheres are transformed into multi-layered WS₂–3D RGO microspheres by a simple sulfidation process. The WS₂–3D RGO microspheres show Na⁺ storage properties superior to those of the WO₃–3D RGO microspheres.