Ultra-stable sandwich shaped flexible MXene/CNT@Ni films for high performance supercapacitor




Tytuł czasopisma

ISSN czasopisma

Tytuł tomu




MXene exhibits high volume capacity, but poor flexibility and mechanical properties have seriously limited its further applications. To address this issue, a sandwich shaped flexible MXene/CNTs@Ni film has been fabricated via a simple filtration approach, wherein the nickel-electroless plating on CNTs (CNTs@Ni) are utilized as the effective interlayer spacers of MXene nanosheets to stabilize their layer structures. In addition, the optimized MXene/CNTs@Ni film electrode as a binder-free and self-supported electrode exhibits robust mechanical stability and impressive electrochemical properties, especially with a high specific capacitance of 990.8 F cm−3, about 1.4 times and 2.4 times higher than that of MXene/CNTs film electrode and pristine MXene film electrode, respectively. A flexible symmetrical supercapacitor (FSMS) was constructed based on MXene/CNTs@Ni film. Notably, the FSMS owns a high energy density of 14.5 Wh kg−1, a high power density of 2571.4 W kg−1, and a good cycling stability, suggesting its potential application in portable energy technologies.


Słowa kluczowe

MXene, sandwich shaped, film electrode, electroless platting, flexible supercapacitor


Li, S., Zhang, Q., Liu, L., Wang, J., Zhang, L., Shi, M., Chen, X. (2023). Ultra-stable sandwich shaped flexible MXene/CNT@Ni films for high performance supercapacitor. Journal of Alloys and Compounds, 941, 168963. doi: 10.1016/j.jallcom.2023.168963.