Journal
MATERIALS LETTERS
Volume 240, Issue -, Pages 21-24Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2018.12.062
Keywords
Nanocomposites; Energy storage and conversion; NiCo2O4; Electrospinning; Supercapacitors
Funding
- National Natural Science Foundation of China, China [51402177]
- Science and Technique Star Project of Shaanxi Province, China [2016KJXX-07]
- Natural Science Foundation of Shaanxi Province, China [2018JM503]
- Research Foundation of Weiyang District, China [201828]
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A flexible NiCo2O4@Carbon/Carbon nanofiber (NiCo2O4@C/CNFs) composite was fabricated by the combined electrospray/electrospinning technique. The NiCo2O4 clusters were coated with an amorphous carbon layer to form NiCo2O4@C core-shell structure and homogeneously trapped in the CNFs net. The NiCo2O4@C/CNFs electrodes exhibited a high specific capacitance (1586 Fg(-1) at 1 Ag-1), good rate performance (51% retention even at 32 Ag-1), and superior cycling life (92.5% capacitance retention after 5000 cycles at 10 Ag-1). The combined electrospray/electrospinning technique is a promising method to produce flexible electrodes with enhanced performance. (C) 2018 Elsevier B.V. All rights reserved.
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