Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 822, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2020.153642
Keywords
High-entropy alloy; Nanoparticles; Supercapacitor; Electrospun carbon nanofibers; Carbothermal shock
Categories
Funding
- National Natural Science Foundation of China [21878338]
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Unstable nanoparticles/carbonaceous nanomaterial synthesis results in inhomogeneous mass and charge transfer across the electrode/electrolyte interface. And high-entropy alloy nanoparticles (HEA-NPs) are rarely reported in supercapacitors. Herein, this study reports an uniform carbothermal shock (CTS) of quinary HEA-NPs on super aligned electrospun carbon nanofibers (ACNFs). The key to this approach is coupling a self-designed collector for aligned CNFs and a suitable CTS current direction. For the electrochemical performance, the FeNiCoMnMg HEA-NPs/ACNFs electrodes with 5 mM precursor concentration show a high capacitance of 203 F/g and a specific energy density of 21.7 Wh/kg. These findings give hints for the HEA-NPs/carbonaceous nanomaterials as promising candidates for energy storage applications. (C) 2020 Elsevier B.V. All rights reserved.
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