Synthesis of multinary composite (NiMnCuCoS) electrodes: Aqueous hybrid supercapacitors

Ganesh T. Chavan, Pritam J. Morankar, Namita A. Ahir, Aviraj M. Teli, P. Rosaiah, Bilal Ahmed, Asad Syed, Abdallah M. Elgorban, Jinsung An, Chan Wook Jeon

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Supercapacitors can upgrade their energy storage performance through a smart design of the electrode material. The long cyclic life achieved by a synergistic effect of multinary compositions, multinary electroactive composites, has fascinated the interest of researchers in the energy dilemma. This study endeavors the facile solvothermal synthesis of multinary Ni-rich NiMnCuCoS composites at different solvothermal reaction times for end use as a cathode material in aqueous hybrid supercapacitors (HSCs). Among a series of NiMnCuCoS composites, the NiMnCuCoS-4 electrode exhibits a significantly high specific capacity and areal capacitance of 201.64 mAh g−1 and 4.355 F cm−2 at 7 mA cm−2, respectively, and an excellent cycling life (76% capacitance preserved after 10,000 cycles). Furthermore, the as-fabricated aqueous NiMnCuCoS@NF// AC@NF HSC device demonstrates superior energy and power densities of 19.67 Wh kg−1 and 2951.50 W kg−1, respectively, with impressive stability (80% capacitance retention over 10,000 charge–discharge cycles). Therefore, encouraging energy storage performance with innovative pathways allows new possibilities for synthesizing multinary composites as promising candidates for next-generation HSCs.

Original languageEnglish
Article number171966
JournalJournal of Alloys and Compounds
Volume968
DOIs
StatePublished - 15 Dec 2023

Keywords

  • Cyclic stability
  • Hybrid supercapacitors
  • Multinary composites
  • NiMnCuCoS cathode
  • NiMnCuCoS@NF// AC@NF HSC

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