Synthesis of graphene/α-Fe2O3 nanospindles by hydrothermal assembly and their lithium storage performance
Synthesis of graphene/α-Fe2O3 nanospindles by hydrothermal assembly and their lithium storage performance
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水热组装石墨烯/α-Fe2O3纳米纺锤的合成及其储锂性能
DOI：
10.1016/j.ceramint.2017.09.182
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发表时间：
2018
影响因子：
5.2
通讯作者：
Jun Zhang
中科院分区：
文献类型：
--
作者：
Tiantian Ma;Yongshan Xu;Li Sun;Xianghong Liu;Jun Zhang
Nanocomposite of graphene/α-Fe2O3(G/α-Fe2O3) nanospindles was synthesized by a simple hydrothermal assembly method followed by thermal treatment. The α-Fe2O3nanospindles were evenly enwrapped by the graphene nanosheets. When evaluated as an anode for Li-ion batteries (LIBs), the G/α-Fe2O3nanocomposite showed enhanced cycling performance and rate capability compared to pure α-Fe2O3. G/α-Fe2O3retained a reversible capacity of 607 mAh g−1after 100 cycles at 100 mA g−1-, which is far higher than that (160 mAh g−1) of α-Fe2O3. The superior electrochemical performance of G/α-Fe2O3can be attributed to the protection effect of graphene nanosheets to accommodate the volume change of α-Fe2O3during lithiation/delithiation.
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