Porous Mo2N nanobelts as a new anode material for sodium-ion batteries

• Firstly applying porous Mo2N nanobelts in sodium ion batteries (NIBs).
• Proved its good performance compared to the explored nitrides in NIBs.
• Such material will be a new promising electrode active material for NIBs.

The limited dynamics and poor cycling stabilities of the current reported anode materials have become the bottleneck for the practical applications and development of sodium-ion batteries (NIBs). It is very urgent to explore new anode materials for NIBs. Herein, we reported a new anode material for NIBs, molybdenum nitride (Mo2N). The synthesized Mo2N with porous nanobelt shape showed a “single-crystal-like” form of simple cubic crystal, and highly porous structure. Moreover, the Mo2N nanobelts exhibit an excellent capacity retention ratio of more than 85% after 200 cycles and fine rate performance. We believe that such porous Mo2N nanobelt will be a new promising electrode active material for NIBs.