Abstract
Hierarchical CoFe2O4/NiFe2O4 nanocomposites are prepared via a facile hydrothermal method, in which CoFe2O4 nanoparticles are coated by NiFe2O4 nanoparticles to form a novel nanostructure. Comparing with the single component of either CoFe2O4 electrodes or NiFe2O4 electrodes, the as-prepared hierarchical CoFe2O4/NiFe2O4 nanocomposites electrodes deliver a higher specific capacitance of 269 F g−1 at a current density of 1 A g−1 and exhibit capacity retention of 81% after 10000 charge–discharge cycles. The improved electrochemical performance demonstrates that hierarchical CoFe2O4/NiFe2O4 nanocomposites are promising materials and provide a new idea for future generation supercapacitors.
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Acknowledgements
This work is supported by the Innovation Foundation of Shanghai Aerospace Science and Technology Grant No. SAST2016114. The Natural Science Foundation of Shanxi Province (Grant No. 2015JZ014). Sponsored by Innovation Foundation for Doctor Dissertation of Northwestern polytechnical University (Grant No. CX201723).
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Feng, X., Huang, Y., Chen, X. et al. Hierarchical CoFe2O4/NiFe2O4 nanocomposites with enhanced electrochemical capacitive properties. J Mater Sci 53, 2648–2657 (2018). https://doi.org/10.1007/s10853-017-1735-9
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DOI: https://doi.org/10.1007/s10853-017-1735-9