Fabrication of NiFe2O4@CoFe2O4 core-shell nanofibers for high-performance supercapacitors
NiFe _2 O _4 @CoFe _2 O _4 core–shell nanofibers were prepared by the co-electrospinning method. The prepared core–shell NiFe _2 O _4 @CoFe _2 O _4 nanofibers electrode has the specific capacitance of 480 Fg ^−1 at a current density of 1Ag ^−1 . After being cycled 2000 times at a current density of...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2020-01-01
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| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/ab61ba |
| Summary: | NiFe _2 O _4 @CoFe _2 O _4 core–shell nanofibers were prepared by the co-electrospinning method. The prepared core–shell NiFe _2 O _4 @CoFe _2 O _4 nanofibers electrode has the specific capacitance of 480 Fg ^−1 at a current density of 1Ag ^−1 . After being cycled 2000 times at a current density of 5Ag ^−1 , the capacity of NiFe _2 O _4 @CoFe _2 O _4 core–shell nanofibers remained 87%. The electrochemical performance of the supercapacitor is improved by the synergistic action of the multi-metal and indicates that core/shell NiFe _2 O _4 @CoFe _2 O _4 nanofibers are promising materials. |
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| ISSN: | 2053-1591 |