Laser induced MXene-derived oxide based advanced supercapacitor for wireless applications

Laser induced MXene-derived oxide based advanced supercapacitor for wireless applications

Článek WoS

The development of energy storage systems for wireless and wearable electronics requires electrode materials that combine high energy density, mechanical flexibility, and long-term cycling stability. Here, we present a laser-engineering strategy for Ti3C2Tx MXene electrodes that induces surface oxidation and forms a hybrid structure comprising in-situ grown TiO2 nanostructures embedded on a conductive MXene matrix. This laser processing restructures the Ti3C2Tx electrode surface into a porous, heterogeneous interface that enhances ion accessibility, suppresses sheet restacking, and introduces additional Ti4+/Ti3+ redox-active sites. Electrochemical characterisation reveals enhanced areal capacitance and rate performance across aqueous, redox-active, and quasi-solid-state gel electrolytes compared to untreated Ti3C2Tx and laser-induced graphene electrodes. Laserinduced Ti3C2Tx-based supercapacitors exhibit a two-fold increase in specific areal capacitance compared to the laser-induced graphene-based cell, along with an excellent cycling stability over 20,000 charge-discharge cycles. Furthermore, integrating these cells with low-power electronic components, including wireless card readers, validates the potential of this approach for practical energy storage in next-generation portable devices.

The development of energy storage systems for wireless and wearable electronics requires electrode materials that combine high energy density, mechanical flexibility, and long-term cycling stability. Here, we present a laser-engineering strategy for Ti3C2Tx MXene electrodes that induces surface oxidation and forms a hybrid structure comprising in-situ grown TiO2 nanostructures embedded on a conductive MXene matrix. This laser processing restructures the Ti3C2Tx electrode surface into a porous, heterogeneous interface that enhances ion accessibility, suppresses sheet restacking, and introduces additional Ti4+/Ti3+ redox-active sites. Electrochemical characterisation reveals enhanced areal capacitance and rate performance across aqueous, redox-active, and quasi-solid-state gel electrolytes compared to untreated Ti3C2Tx and laser-induced graphene electrodes. Laserinduced Ti3C2Tx-based supercapacitors exhibit a two-fold increase in specific areal capacitance compared to the laser-induced graphene-based cell, along with an excellent cycling stability over 20,000 charge-discharge cycles. Furthermore, integrating these cells with low-power electronic components, including wireless card readers, validates the potential of this approach for practical energy storage in next-generation portable devices.

Laser-induced MXene, Microsupercapacitor, Laser engineering, Wireless card reader

Laser-induced MXene, Microsupercapacitor, Laser engineering, Wireless card reader

MAPPOLI, S.; DESHMUKH, S.; PUMERA, M.

01.06.2026

Elsevier

Applied Materials Today

50

June

Nizozemsko

10

https://www.sciencedirect.com/science/article/pii/S2352940726001393?pes=vor&utm_source=clarivate&getft_integrator=clarivate