期刊
JOURNAL OF MATERIALS SCIENCE
卷 53, 期 4, 页码 2648-2657出版社
SPRINGER
DOI: 10.1007/s10853-017-1735-9
关键词
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资金
- Innovation Foundation of Shanghai Aerospace Science and Technology [SAST2016114]
- Natural Science Foundation of Shanxi Province [2015JZ014]
- Innovation Foundation for Doctor Dissertation of Northwestern polytechnical University [CX201723]
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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