Spindle-like Mesoporous α-Fe₂O₃ Anode Material Prepared from MOF Template for High-Rate Lithium Batteries

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Abstract

Spindle-like porous α-Fe2O3 was prepared from an iron-based metal organic framework (MOF) template. When tested as anode material for lithium batteries (LBs), this spindle-like porous α-Fe2O3 shows greatly enhanced performance of Li storage. The particle with a length and width of ∼0.8 and ∼0.4 μm, respectively, was composed of clustered Fe2O3 nanoparticles with sizes of <20 nm. The capacity of the porous α-Fe2O3 retained 911 mAh g–1 after 50 cycles at a rate of 0.2 C. Even when cycled at 10 C, comparable capacity of 424 mAh g–1 could be achieved.

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