Fabrication of NiFe2O4@CoFe2O4 core-shell nanofibers for high-performance supercapacitors | Zendy

Qing Wang | Zendy; Haoran Gao | Zendy; Xuefeng Qin | Zendy; Jianfeng Dai | Zendy; Weixue Li | Zendy

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Fabrication of NiFe₂O₄@CoFe₂O₄ core-shell nanofibers for high-performance supercapacitors

Author(s) -

Qing Wang,

Haoran Gao,

Xuefeng Qin,

Jianfeng Dai,

Weixue Li

Publication year - 2019

Publication title -

materials research express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.383

H-Index - 35

ISSN - 2053-1591

DOI - 10.1088/2053-1591/ab61ba

Subject(s) - nanofiber , materials science , supercapacitor , electrospinning , fabrication , electrode , current density , capacitance , electrochemistry , core (optical fiber) , shell (structure) , chemical engineering , metal , nanotechnology , composite material , metallurgy , chemistry , polymer , medicine , alternative medicine , physics , pathology , quantum mechanics , engineering

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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