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Preparation and capacitive property of graphene oxide composite supercapacitor electrodes functionalized by Fe-based metal–organic frameworks

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2022, 32(1), pp.273-283
  • DOI : 10.1007/s42823-021-00300-y
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : August 11, 2021
  • Accepted : October 24, 2021
  • Published : January 1, 2022

Oh Hye Jin 1 Kim Seok 1

1부산대학교 화학공학부

Accredited

ABSTRACT

We have prepared MIL-101/graphene oxide (GO) composites with various mixing molar ratio of Fe-containing metal–organic frameworks (MOFs) against GO. When synthesizing MOFs, it was possible to synthesize uniform crystal powders using hydrothermal method. MIL-101 consists of a terephthalic acid (TPA) ligand, with the central metal composed of Fe, which was the working electrode material for supercapacitors. Field emission scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy analysis had been done to ascertain microstructures and morphologies of the composites. Cyclic voltammetry, electrochemical impedance spectroscopy, and galvanostatic charge–discharge measurements were performed to analyze the electrochemical properties of the composite electrodes in 6 M KOH electrolyte. By controlling the metal ligand mole ratio against GO, we prepared a changed MOF structure and a different composite morphology, which could be studied as one of the promising optimized electrode materials for supercapacitors.

Citation status

This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2024-07-26)

Total Citation Counts(KCI+WOS) (16) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (16) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-10-01)

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This paper was written with support from the National Research Foundation of Korea.