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 an 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.