CuO nanostructures supported on Cu substrate as integrated electrodes for highly reversible lithium storage.
CuO nanostructures supported on Cu substrate as integrated electrodes for highly reversible lithium storage.
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DOI：
10.1039/c0nr00827c
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发表时间：
2011-04
期刊：
影响因子：
6.7
通讯作者：
Zhiyu Wang;F. Su;S. Madhavi;X. Lou
中科院分区：
文献类型：
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作者：
Zhiyu Wang;F. Su;S. Madhavi;X. Lou
通过热退火，由形貌控制的 Cu(2)(OH)(3)NO(3) 前体合理地制备了支撑在 Cu 基底上的 CuO 纳米结构阵列，包括纳米棒和纳米片。所制备的CuO样品可以直接用作锂离子电池的集成电极，无需添加炭黑或粘合剂等其他辅助材料，以增强电极的导电性和循环稳定性。独特的纳米结构特征赋予它们优异的电化学性能，0.5-2 C 下的高容量为 450-650 mAh g(-1)，并且在第二次循环后 100 次循环后容量保持率几乎为 100%。
Arrays of CuO nanostructures, including nanorods and nanosheets, supported on a Cu substrate have been rationally fabricated from their morphology-controlled Cu(2)(OH)(3)NO(3) precursors by thermal annealing. The as-prepared CuO samples can be directly used as integrated electrodes for lithium-ion batteries without the addition of other ancillary materials such as carbon black or a binder to enhance electrode conductivity and cycling stability. The unique nanostructural features endower them excellent electrochemical performance as demonstrated by high capacities of 450-650 mAh g(-1) at 0.5-2 C and almost 100% capacity retention over 100 cycles after the second cycle.