Spindle-like Mesoporous
α‑Fe<sub>2</sub>O<sub>3</sub> Anode Material Prepared
from MOF Template for High-Rate
Lithium Batteries
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Abstract
Spindle-like porous α-Fe<sub>2</sub>O<sub>3</sub> 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-Fe<sub>2</sub>O<sub>3</sub> 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
Fe<sub>2</sub>O<sub>3</sub> nanoparticles with sizes of <20 nm.
The capacity of the porous α-Fe<sub>2</sub>O<sub>3</sub> retained
911 mAh g<sup>–1</sup> after 50 cycles at a rate of 0.2 C.
Even when cycled at 10 C, comparable capacity of 424 mAh g<sup>–1</sup> could be achieved