One-step microwave-assisted synthesis of Sb2O3/reduced graphene oxide composites as advanced anode materials for sodium-ion batteries

Sb 2 O 3 /reduced graphene oxide (RGO) composites were prepared through a facile microwave-assisted reduction of graphite oxide in SbCl 3 precursor solution, and investigated as anode material for sodium-ion batteries (SIBs). The experimental results show that a maximum specific capacity of 503 mA h g −1 is achieved after 50 galvanostatic charge/discharge cycles at a current density of 100 mA g −1 by optimizing the RGO content in the composites and an excellent rate performance is also obtained due to the synergistic effect between Sb 2 O 3 and RGO. The high capacity, superior rate capability and excellent cycling performance of Sb 2 O 3 /RGO composites demonstrate their excellent sodium-ion storage ability and show their great potential as electrode materials for SIBs.