NiO/MnO2 core/shell nanocomposites for high-performance pseudocapacitors

Zhang, B., Li, W., Sun, J. , He, Guanjie, Zou, R., Hu, J. and Chen, Z. (2014) NiO/MnO2 core/shell nanocomposites for high-performance pseudocapacitors. Materials Letters, 114 . pp. 40-43. ISSN 0167-577X

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NiO/MnO2 core/shell nanocomposites have been fabricated by a facile hydrothermal method. The nanocomposites consist of NiO nanowires with the diameter of 70–80 nm which are coated by plenty of MnO2 nanosheets as secondary nanostructures. The NiO@MnO2 nanocomposites are used subsequently to construct a pseudocapacitor. Electrochemical tests reveal a high specific capacitance of 528.0 F g−1 at a scan rate of 1 mV s−1 and a good cycling stability of 109.9% after 5000 cycles, both of which are much higher compared to that of the pseudocapacitor based on pure NiO nanowires (307.0 F g−1 and 87.8%, respectively). Therefore, these NiO/MnO2 nanocomposites have great superiority as electrode material in high-performance pseudocapacitors.

Additional Information:cited By 21
Divisions:College of Science > School of Chemistry
ID Code:39462
Deposited On:15 Jan 2020 11:53

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