Pyrolytic carbon in-situ coated VS2 nanosheets self-assembled submicroflowers for good sodium storage property

The N, S co-doped amorphous carbon coated VS2 nanosheets self-assembled submicroflowers (N/S-C@VS2) with interfacial V-C bonds are in-situ constructed by a simple one-step solvothermal method. Benefiting from the synergistic effect of VS2 nanosheets with rich Na+ storage sites, N/S-C coating layer with high electrical conductivity and their interfacial V-C bond interaction, N/S-C@VS2 anode exhibits the outstanding cycling performance with the pseudocapacitive Na+ storage process. The capacity of 680 mAh/g is realized at 1.0 A/g after 180 cycles.