Enhanced electrochemical performance of vanadium carbide MXene composites for supercapacitors

Syedah Afsheen Zahra, Babak Anasori, Muhammad Z. Iqbal, Florent Ravaux, Mohammednoor Al Tarawneh, Syed Rizwan

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Two-dimensional (2D) surface-Terminated layered transition metal carbide MXenes with high electrochemical performance paved the way for robust energy storage supercapacitor devices. However, because of the 2D nature of the MXene flakes, self-restacking of 2D MXene flakes limits the use of all the flake functionalized surfaces in MXene electrodes. Here, we report the synthesis of V2CTx MXene and multiwall carbon nanotube (MWCNT)/V2CTx composites as a promising electrode material for hybrid energy storage devices. Our hybrid electrodes exhibited enhanced electrochemical performance and a gravimetric capacitance of 1842 F g-1 at a scan rate of 2 mV s-1, with a specific charge capacity of 62.5 A h/g. Moreover, the electrodes presented an excellent rate performance, durability, and retention capacity of 94% lasted up to 10 000 cycles. Density functional theory calculations provided electronic and structural properties of the considered MWCNT@V2CTx. Therefore, the introduction of MWCNTs enhanced the conductivity and reaction kinetics of the MXenes and facilitates the charge storage mechanism useful for next-generation smart energy storage devices.

Original languageEnglish
Article number060901
JournalAPL Materials
Volume10
Issue number6
DOIs
Publication statusPublished - Jun 1 2022

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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