2D hybrid nanostructures of MoSe2⊥sisal fiber activated carbon for enhanced Li storage performance
An originality hibrid nanostructure of MoSe2 nanosheets developed in the vertical direction in two-dimensional (2D) mesoporous nanosheets surface of sisal fiber activated carbon (MoSe2⊥SFAC) was obtained through hydrothermal and annealed processes. The microscopic size is about 10 nm and 1-nm-thick MoSe2 nanosheets. The novel nanostructure of MoSe2⊥SFAC shows a high specific surface area and mesoporous feature, which displays great application prospects in lithium ion batteries (LIBs). The MoSe2⊥SFAC electrode remains a detailed discharging capacity reaching 501.3 mAh g-1 at 0.1 A g-1 after 50 cycles, and 224.6 mAh g-1 at 1 A g-1 over 500 cycles, with corresponding coulombic efficiency closing to 100%. In contrast to the pure sisal fiber activated carbon, MoSe2⊥SFAC has a higher lithium ion diffusion coefficient, thus ensuring the rapid transmission of lithium ions.