Shan, Q;
Mu, X;
Alhabeb, M;
Shuck, CE;
Pang, D;
Zhao, X;
Chu, XF;
... Dall'Agnese, Y; + view all
(2018)
Two-dimensional vanadium carbide (V2C) MXene as electrode for supercapacitors with aqueous electrolytes.
Electrochemistry Communications
, 96
pp. 103-107.
10.1016/j.elecom.2018.10.012.
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Abstract
Recently, a large family of 2D materials called MXenes have attracted much attention in the field of supercapacitors, thanks to the excellent performance demonstrated by Ti3C2 MXene-based electrodes. However, research on MXenes for supercapacitor applications has been primarily focused on Ti3C2, even though there are more than 20 other members of this large family of materials already available. Studies on other MXenes are emerging, with promising results already achieved by Ti2C, Mo2C, and Mo1.33C in aqueous electrolytes. Yet, many other MXenes remain unexplored in aqueous supercapacitor applications. In this work, we report on the electrochemical behavior of a vanadium carbide MXene, V2C, in three aqueous electrolytes. Excellent specific capacitances were achieved, specifically 487 F/g in 1 M H2SO4, 225 F/g in 1 M MgSO4, and 184 F/g in 1 M KOH, which are higher than previously reported values for few micrometer-thick delaminated MXene electrodes. This work shows the promise of V2C MXene for energy storage using aqueous electrolytes.
| Type: | Article |
|---|---|
| Title: | Two-dimensional vanadium carbide (V2C) MXene as electrode for supercapacitors with aqueous electrolytes |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.elecom.2018.10.012 |
| Publisher version: | https://doi.org/10.1016/j.elecom.2018.10.012 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | MXene, Supercapacitor, Vanadium carbide, Two-dimensional material, Aqueous electrolyte, Pseudocapacitance |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > MAPS Faculty Office UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > MAPS Faculty Office > Institute for Materials Discovery |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10066726 |
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