In this section
@article{Dutta:2024:10.1016/j.cej.2024.157342,
author = {Dutta, A and Porat, H and Goldreich, A and Yadgarov, L and Kafizas, A and Shpigel, N and Borenstein, A},
doi = {10.1016/j.cej.2024.157342},
journal = {Chemical Engineering Journal},
title = {Laser exfoliated 2D MXene for supercapacitor applications},
url = {http://dx.doi.org/10.1016/j.cej.2024.157342},
volume = {500},
year = {2024}
}
TY - JOUR
AB - MXenes-based compounds, particularly Ti3C2Tx, have been studied intensively as electrodes for supercapacitors due to their layered structure and high conductivity, enabling facile ion diffusion and charge transfer. However, tight restacking of the 2D layers in these materials limits their practical, accessible surface area, thereby impeding their capacity and rate capability performance. To mitigate this phenomenon, we present a new approach using a processing method based on laser beam irradiation to modify Ti3C2Tx films. We found that the laser treatment induces chemical and morphological changes, ultimately optimizing the stacking arrangement of the MXene electrodes and consequently enhancing their capacity in both neutral and acidic electrolytes. Furthermore, the laser-modified MXene electrodes demonstrate excellent rate capabilities, showing 84 % retention at extreme rates of 0.5 V compared to only 33 % of the original Ti3C2Tx electrodes. Finally, we discuss the chemical and physical changes induced by the laser treatments and their influence on the electrochemical behavior of the lasered MXene. The principles of laser exfoliation discovered in this study can be implemented in broader 2D materials for various applications.
AU - Dutta,A
AU - Porat,H
AU - Goldreich,A
AU - Yadgarov,L
AU - Kafizas,A
AU - Shpigel,N
AU - Borenstein,A
DO - 10.1016/j.cej.2024.157342
PY - 2024///
SN - 1385-8947
TI - Laser exfoliated 2D MXene for supercapacitor applications
T2 - Chemical Engineering Journal
UR - http://dx.doi.org/10.1016/j.cej.2024.157342
VL - 500
ER -
Dr. Andreas Kafizas
Leader - Solar Coatings Group
e-mail: a.kafizas@imperial.ac.uk
tel: +44(0)20 7594 6752
twitter: @CoatingsSolar