Improved charge storage performance of a layered MoC MXene/MoS/graphene nanocomposite

• Published in: Nanoscale advances Vol. 3; no. 23; pp. 6689 - 6695
• Main Authors: EL Ghazaly, Ahmed, Méndez-Romero, Ulises A, Halim, Joseph, Nestor Tseng, Eric, Å. Person, Per, Ahmed, Bilal, Wang, Ergang, Rosen, Johanna
• Format: Journal Article
• Published: 23.11.2021
• ISSN: 2516-0230
• DOI: 10.1039/d1na00642h

The construction of nanocomposite electrodes based on 2D materials is an efficient route for property enrichment and for exploitation of constituent 2D materials. Herein, a flexible Mo 1.33 C i -MXene/MoS 2 /graphene (MOMG) composite electrode is constructed, utilizing an environment-friendly method for high-quality graphene and MoS 2 synthesis. The presence of graphene and MoS 2 between MXene sheets limits the commonly observed restacking, increases the interlayer spacing, and facilitates the ionic and electronic conduction. The as-prepared MOMG electrode delivers a volumetric capacitance of 1600 F cm −3 (450 F g −1 ) at the scan rate of 2 mV s −1 and retains 96% of the initial capacitance after 15 000 charge/discharge cycles (10 A g −1 ). The current work demonstrates that the construction of nanocomposite electrodes is a promising route towards property enhancement for energy storage applications. Felxiable Mo 1.33 C i -MXene/MoS 2 /graphene (MOMG) nanocomposite electrode delivers volumetric capacitance up to 1600 F cm −3 in sulphric acid electolyte.