Synthesis of Thinly N-Doped Carbon-Coated MoS2 for High-Rate Na-ion Storage

Abstract

We devised a simple method to synthesize thinly N-doped carbon-coated MoS2 nanoparticles (MoS2@NC, sized at 10-20 nm). The unique structure of the MoS2@NC, with enlarged MoS2 lattice interlayer spacing and curved S-Mo-S planes, facilitates smooth Na+ insertion/extraction and enhances the interaction-type capacity. The interconnected carbon shells act as electron-conducting pathways and shield against structural instability during high-extent conversion reactions.