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...

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Main Authors: Qing Wang, Haoran Gao, Xuefeng Qin, Jianfeng Dai, Weixue Li
Format: Article
Language:English
Published: IOP Publishing 2020-01-01
Series:Materials Research Express
Subjects:
Online Access:https://doi.org/10.1088/2053-1591/ab61ba
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author Qing Wang
Haoran Gao
Xuefeng Qin
Jianfeng Dai
Weixue Li
author_facet Qing Wang
Haoran Gao
Xuefeng Qin
Jianfeng Dai
Weixue Li
author_sort Qing Wang
collection DOAJ
description 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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spelling doaj.art-fc263f249e15423eb3f97c7355a804c22023-08-09T15:26:03ZengIOP PublishingMaterials Research Express2053-15912020-01-017101502010.1088/2053-1591/ab61baFabrication of NiFe2O4@CoFe2O4 core-shell nanofibers for high-performance supercapacitorsQing Wang0Haoran Gao1https://orcid.org/0000-0001-6595-484XXuefeng Qin2https://orcid.org/0000-0003-0616-6602Jianfeng Dai3https://orcid.org/0000-0002-8747-7586Weixue Li4School of Science, Lanzhou University of Technology , Lanzhou 730050, People’s Republic of China; State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology , Lanzhou 730050, People’s Republic of ChinaSchool of Science, Lanzhou University of Technology , Lanzhou 730050, People’s Republic of ChinaSchool of Science, Lanzhou University of Technology , Lanzhou 730050, People’s Republic of ChinaSchool of Science, Lanzhou University of Technology , Lanzhou 730050, People’s Republic of China; State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology , Lanzhou 730050, People’s Republic of ChinaSchool of Science, Lanzhou University of Technology , Lanzhou 730050, People’s Republic of China; State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology , Lanzhou 730050, People’s Republic of ChinaNiFe _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.https://doi.org/10.1088/2053-1591/ab61baco-electrospinningNiFe2O4@CoFe2O4supercapacitors
spellingShingle Qing Wang
Haoran Gao
Xuefeng Qin
Jianfeng Dai
Weixue Li
Fabrication of NiFe2O4@CoFe2O4 core-shell nanofibers for high-performance supercapacitors
Materials Research Express
co-electrospinning
NiFe2O4@CoFe2O4
supercapacitors
title Fabrication of NiFe2O4@CoFe2O4 core-shell nanofibers for high-performance supercapacitors
title_full Fabrication of NiFe2O4@CoFe2O4 core-shell nanofibers for high-performance supercapacitors
title_fullStr Fabrication of NiFe2O4@CoFe2O4 core-shell nanofibers for high-performance supercapacitors
title_full_unstemmed Fabrication of NiFe2O4@CoFe2O4 core-shell nanofibers for high-performance supercapacitors
title_short Fabrication of NiFe2O4@CoFe2O4 core-shell nanofibers for high-performance supercapacitors
title_sort fabrication of nife2o4 cofe2o4 core shell nanofibers for high performance supercapacitors
topic co-electrospinning
NiFe2O4@CoFe2O4
supercapacitors
url https://doi.org/10.1088/2053-1591/ab61ba
work_keys_str_mv AT qingwang fabricationofnife2o4cofe2o4coreshellnanofibersforhighperformancesupercapacitors
AT haorangao fabricationofnife2o4cofe2o4coreshellnanofibersforhighperformancesupercapacitors
AT xuefengqin fabricationofnife2o4cofe2o4coreshellnanofibersforhighperformancesupercapacitors
AT jianfengdai fabricationofnife2o4cofe2o4coreshellnanofibersforhighperformancesupercapacitors
AT weixueli fabricationofnife2o4cofe2o4coreshellnanofibersforhighperformancesupercapacitors