Perovskite oxide-based nanoparticles embedded MXene composites for supercapacitors and oxygen evolution reactions

Zulfqar Ali Sheikh, Dhanasekaran Vikraman, Honggyun Kim, Sikandar Aftab, Shoyebmohamad F. Shaikh, Faisal Shahzad, Jongwan Jung, Hyun Seok Kim, Sajjad Hussain, Deok Kee Kim

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

In this report, perovskite oxide-MnFeO3 nanoparticles embedded MXene sheets were prepared by hydrothermal approach for the effective water splitting and energy stowage uses. The prepared MXene@MnFeO3 hybrid nanocomposites exhibited outstanding 1077 F/g specific capacitance at a current density of 1 A g−1 and excellent cycling solidity (capacitance retention after the 3000 cycle is 96.5 %). In addition, an asymmetric capacitor delivered a ultimate specific energy of 114 Wh/kg at a specific power of 2117 W/kg. MXene@MnFeO3 hybrid catalyst required a credible overpotential of 235 mV to achieve the 10 mA cm−2 current density, along with the small Tafel slope of 41 mV dec−1 for OER in 1 M KOH and long-span 24 h stability. Our proposed strategy of perovskite oxide nanoparticles hybridized highly conductive MXene sheets would be suitable alternative as the potential electrode materials for the efficient energy storage/conversion application.

Original languageEnglish
Article number110342
JournalJournal of Energy Storage
Volume81
DOIs
StatePublished - 15 Mar 2024

Keywords

  • Asymmetric
  • Ferrite
  • Hybrids
  • MXene
  • Oxygen evolution
  • Supercap

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