Salt-assisted synthesis of Fe3O4 nanoparticles embedded in hierarchical porous carbon for high-performance lithium storage

Herein, we reported a salt-template approach for the construction of hybrid materials composed of Fe 3 O 4 nanoparticles embedded in hierarchical porous carbon . Benefiting from the combined effect of sufficient space to alleviate the volume expansion of Fe 3 O 4 and the good electronic conductivity of three dimensional interconnected framework, the hybrid materials deliver excellent performance. HPCs/Fe 3 O 4 -2 anode displays a high reversible capacity of 1018.4 mAh g −1 after 250 cycles at 0.2 A g −1 , and an excellent cycling-life stability of 415.4 mAh g −1 after 1000 cycles at a high current density of 5 A g −1 , suggesting the potential application in LIBs anode. Such an effective and simple approach to construct carbon-based hybrid materials can be further extended to fabricate other anode and cathode materials with excellent performance.