Facile synthesis of MoS2/N-doped carbon as an anode for enhanced sodium-ion storage performance

The scalable synthesis of MoS2/N-doped carbon (MoS2/NC) nanosheets was accomplished using a facile salt template–assisted synthesis method. The MoS2 nanosheets were uniformly encapsulated in nitrogen-doped carbon frameworks. As an anode for sodium-ion batteries (SIBs), the electrochemical performance of the MoS2/NC electrode was significantly improved compared to pure MoS2, which demonstrated a reversible capacity of 334.6 mAh g−1 after 100 cycles at 0.2 A g−1; even after 250 cycles of 1 A g−1, the capacity could still be maintained at 252.9 mAh g−1. This excellent sodium storage performance was mainly due to the coupling of nitrogen-doped carbon with MoS2 and the uniform distribution of the nanosheets, which improved the reaction kinetics. Besides, the electrochemical reconstruction ensured the integrity of the electrode. This work was of great significance for the large-scale synthesis of MoS2 anode material with enhanced stability SIBs.