Abstract
Metal-organic frameworks (MOFs)-derived nanoarrays have been widely used as electrode materials in energy storage applications with the unique morphology and large specific surface area. Herein, we report a series of N-doped carbon arrays embedded with different metal compounds (noted as NC@Co3O4, NC@CoSe2 and NC@CoS2), which have been derived from a Co-based MOF through simple fabrication processes. The resulted structures have high surface-to-volume ratio and short charge-transfer paths in electrochemical reactions, which greatly benefit the energy storage performance. An asymmetric supercapacitor of NC@CoS2//Co-NC@Fe2O3 is also demonstrated, which has a power density up to 23.5 kW/kg and illustrates good cycling stability after long-time rapid charging and discharging. This work demonstrates a promising way to develop MOF-derived nanoarrays for flexible energy storage devices.
Original language | English |
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Pages (from-to) | 93-100 |
Number of pages | 8 |
Journal | Batteries and Supercaps |
Volume | 3 |
Issue number | 1 |
DOIs | |
State | Published - 1 Jan 2020 |
Keywords
- energy storage
- flexible supercapacitor
- metal-organic framework
- nanoarrays