Carbon Nanoarrays Embedded with Metal Compounds for High-Performance Flexible Supercapacitors

Chenyu Zhu, Cao Guan, Dongming Cai, Tian Chen, Yonghui Wang, Junjie Du, Jun Wu, Xi Xu, Hong Yu, Wei Huang

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

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 languageEnglish
Pages (from-to)93-100
Number of pages8
JournalBatteries and Supercaps
Volume3
Issue number1
DOIs
StatePublished - 1 Jan 2020

Keywords

  • energy storage
  • flexible supercapacitor
  • metal-organic framework
  • nanoarrays

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