1T MoS₂growth from exfoliated MoS₂nucleation as high rate anode for sodium storage

Recently, metallic 1T MoS₂has been investigated due to its excellent performance in electrocatalysts, photocatalysts, supercapacitors and secondary batteries. However, there are only a few fabrication methods to synthesize stable 1T MoS₂. In this work, exfoliated MoS₂is employed as seed crystals for the nucleation and growth of a stable 1T MoS₂grains by an epitaxial growth strategy. The 1T MoS₂displays a large interlayer spacing around 0.95 nm, excellent hydrophilia and more electrochemically active sites along the basal plane, which contribute an efficient ion/electron transport pathway and structural stability. When employed as the anode material for sodium ion batteries, the 1T MoS₂electrodes can survive 500 full charge/discharge cycles with a minimum capacity loss of 0.40 mAh g^-1cycle^-1tested at a current density of 1.0 A g^-1, and the capacity degradation is as low as 0.39 mAh g^-1cycle^-1at a current density of 2.0 A g^-1.