Fe3O4/C nanosheets are prepared by annealing the iron alkoxide counterparts.
The nanosheets are in the form of carbon matrix supporting Fe3O4 nanocrystals.
The Cd of the nanosheets retains of 647 mAh g−1 after 100 cycles at 100 mA g−1.
The Cd of the nanosheets retains of 546 mAh g−1 after 100 cycles at 200 mA g−1.