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Electrochemical performance of NaCo2O4 as electrode for supercapacitors

Hong-Wei Tang ,  Ning Gao ,  Zhao-Rong Chang ,  Bao Li ,  Xao-Zi Yuan ,  Hai-Jiang Wang

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Citation:  Hong-Wei Tang, Ning Gao, Zhao-Rong Chang, Bao Li, Xao-Zi Yuan, Hai-Jiang Wang. Electrochemical performance of NaCo2O4 as electrode for supercapacitors[J]. Chinese Chemical Letters, 2014, 25(2): 269-272. shu

Electrochemical performance of NaCo2O4 as electrode for supercapacitors

    • 通讯作者: Zhao-Rong Chang,
  • 基金项目:

    This work was financially supported by the Natural Science Foundation of China (No. 21071046) under approval. (No. 21071046)

摘要: Sub-micron-scaled sodium cobalt oxide (NaCo2O4) powders are prepared by a solid-state reaction method. Characterization using X-ray diffraction indicates that the synthesized NaCo2O4 has a hexagonal layered structure. The electrochemical performance of the NaCo2O4 electrodes is investigated using cyclic voltammetry and galvanostatic charge/discharge in NaOH solution. The results show that the specific capacitance of the NaCo2O4 electrode reaches 337 F/g over the potential range of 0.15-0.65 V at a mass normalized current of 50 mA/g. Moreover, NaCo2O4 exhibits very good stability and cycling performance as a supercapacitor material.

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  • 收稿日期:  2013-06-09
  • 网络出版日期:  2013-11-12
通讯作者: 陈斌, bchen63@163.com
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