Facile synthesis of Fe-MOF/RGO and its application as a high performance anode in lithium-ion batteries

The use of metal organic frameworks (MOFs) as new promising electrode materials in lithium-ion batteries (LIBs) has attracted significant attention. However, the low electrical conductivity of MOFs has resulted in the poor cycle performance of LIBs. Here, we report a facile synthesis route of Fe-MOF/reduced graphene oxide (RGO) composites using a solvothermal method. When used as anode materials for LIBs, the synthesized Fe-MOF/RGO (5%) composite shows superior Li storage with a reversible capacity of 1010.3 mA h g(-1) after 200 cycles and an excellent rate performance. The improved electrochemical performance may be attributed to the synergistic effect of MOFs with high theoretical capacities and RGO with high electrical conductivity.