Wet spinning of MXene (V2CTX) based fiber fabric with high electrochemical performance for flexible supercapacitor

Dianchun Qiu, Kai Zheng, Tuxiang Guan, Zemei Li, Juan Peng, Qing Tao, Kelan Yan, Ningzhong Bao

科研成果: 期刊稿件文章同行评审

16 引用 (Scopus)

摘要

Flexible supercapacitor is highly important to future wearable textile electronics and metaverse technologies, yet they are still limited by their unfulfilled specific capacitance and energy density. Here, a MXene (V2CTX) based fiber fabric (MFF) was developed via a synergistic flow driven assembly strategy for high-performance supercapacitors. Adapted through reliable approaches of indirect etching, organic cation intercalation, and wet spinning, the MFF presents rich active sites, ordered paths, a moderate specific surface area (41.1 m2 g−1), good flexibility and reproducibility. Admirably, the resulting fibrillar meshwork structure was found to be highly conducive to increasing energy density and reducing the electrochemical polarization. In this regard, a relatively good capacitance of 731 F g−1 is achieved at a current density of 0.5 A g−1 in H2SO4 electrolyte. Furthermore, the assembled asymmetric solid-state supercapacitor (FSC) exhibits high specific capacitance of 401.2 F g−1 at 0.5 A g−1, long cycle stability (5000 cycles) and high mechanical flexibility (5000 bending cycles). Benefiting from this outstanding electrochemical performance, the FSCs using EMIBF4/PVDF-HFP as electrolyte can be implied as reliable power source to flexible displaying and health monitoring. This work provides a novel MXene (V2CTX) based fiber fabric for constructing flexible electrode, promising to open an avenue toward wearable devices.

源语言英语
文章编号174230
期刊Journal of Alloys and Compounds
991
DOI
出版状态已出版 - 5 7月 2024

指纹

探究 'Wet spinning of MXene (V2CTX) based fiber fabric with high electrochemical performance for flexible supercapacitor' 的科研主题。它们共同构成独一无二的指纹。

引用此