Large-scale synthesis of SnS/carbon nanotube composites with enhanced reversible lithium-ion storage

SnS in situ hybridized with carbon nanotubes has been achieved via a facile homogeneous precipitation process. The structure and morphology of the as-prepared SnS/carbon nanotube composites have been characterized by X-ray diffraction and transmission electron microscopy. Results indicate that SnS nanoparticles are uniformly dispersed on the surface of carbon nanotubes. The lithium-ion storage properties of the materials are investigated by cyclic voltammetry, galvanostatic charge-discharge cycling, and electrochemical impedance spectroscopy. It demonstrates that SnS/carbon nanotube composites exhibit better electrochemical performance as compared to single SnS and carbon nanotubes. The enhanced reversible lithium storage could be ascribed to the synergistic effect of SnS and carbon nanotubes.