▎ 摘　　要

A facile one-step hydrothermal method has been developed to synthesise Fe2O3-graphene nanocomposites using L-arginine as the hydrolysis-controlling agent. In the synthesised composites, highly crystallized Fe2O3 nanocrystals with an average size of similar to 50 nm are firmly anchored on the graphene sheets. When applied as the anode material for lithium ion batteries, the resulting Fe2O3-graphene nanocomposites show excellent cycling stability and good rate performance. The composites deliver a capacity of 946 and 634mA h g(-1) at a current density of 200 and 2000 mA g(-1), respectively. After cycling at 200 mA g(-1) for 450 cycles, a capacity of 1049 mA h g(-1) can still be maintained.