Facile fabrication of CNTs@C@MoSe₂@Se hybrids with amorphous structure for high performance anode in lithium-ion...

Amorphous MoSe₂ and Se anchored on amorphous carbon coated multiwalled carbon nanotubes (CNTs@C@MoSe₂@Se) have been synthesized by a facile solvothermal strategy. The one dimensional CNTs@C@MoSe₂@Se can effectively buffer the volume variation, prohibit the aggregation and facilitate electron and ion transport throughout the electrode. Furthermore, the combination of MoSe₂ and Se also provides buffer spaces for the volumetric change during cycling. Thus, the obtained CNTs@C@MoSe₂@Se hybrids display the enhanced cycle stability and excellent high rate capacity. The reversible capacity of 1010mAhg^-1 can be achieved after 100 cycles at the current density of 0.1Ag^-1. Even after 500 cycles, a reversible capacity of 508mAhg^-1 is still retained at 5Ag^-1.