Preparation of flexible supercapacitor with RGO/Ni-MOF film on Ni-coated polyester fabric

Cheng Cheng, Jiangtao Xu, Wei Gao, Shouxiang Jiang, Ronghui Guo

Research output: Journal article publicationJournal articleAcademic researchpeer-review

18 Citations (Scopus)

Abstract

Metal-organic frameworks (MOFs) show promise and potential in energy storage but have limited applications due to their poor conductivity. In this work, a flexible fabric electrode is constructed with a sphere-flake-sphere structure formed by a nick-metal-framework (Ni-MOF) and reduced graphene oxide (RGO). The sphere-flake-sphere structure improves the conductivity and enhances the electrochemical performance of flexible RGO/Ni-MOF/metallic fabric electrodes (RNMEs). The areal capacitance of the RNME samples can reach 260 mF/cm2 at a current density of 4 mA/cm2. The areal capacitance of RNME samples shows a good cycle stability after undergoing 2000 charging/discharging cycles. The all-solid-state asymmetric fabric supercapacitor (AAFSC) based on this hybrid and PPy fabric electrode shows excellent electrochemical energy-storage performance, with an areal capacitance of 95 mF/cm2, a power density of 3.07 mW/cm2, and an energy density of 7.72 μWh/cm2. The areal capacitance of AAFSC can keep over 70% of original areal capacitance after 1500 charging/discharging cycles. This flexible AAFSC shows a promise and potential for wearable textile electronics.

Original languageEnglish
Pages (from-to)23-31
Number of pages9
JournalElectrochimica Acta
Volume318
DOIs
Publication statusPublished - 12 Jun 2019

Keywords

  • Fabric
  • MOF
  • Reduced graphene oxide
  • Sphere-flake-sphere structure
  • Supercapacitor

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry

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