Alternate-Layered MXene Composite Film-Based Triboelectric Nanogenerator with Enhanced Electrical Performance

Nanoscale Research Letters

Lingyu Wan¹  Xia Liu²  Yanmin Feng²  Wei Wang²  Meng He²  Aifang Yu³  Junyi Zhai³ 

[1] School of Chemistry and Chemical EngineeringCenter On Nanoenergy Research, School of Physical Science and Technology, Guangxi University, 530004, Nanning, China;School of Chemistry and Chemical EngineeringCenter On Nanoenergy Research, School of Physical Science and Technology, Guangxi University, 530004, Nanning, China;CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-Nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems,, Chinese Academy of Sciences, 101400, Beijing, China;School of Chemistry and Chemical EngineeringCenter On Nanoenergy Research, School of Physical Science and Technology, Guangxi University, 530004, Nanning, China;CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-Nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems,, Chinese Academy of Sciences, 101400, Beijing, China;School of Nanoscience and Technology, University of Chinese Academy of Sciences, 100049, Beijing, China;

关键词: NbCT;    TiCT;    Fluorine groups;    Triboelectric nanogenerator;    Composite;   

DOI  :  10.1186/s11671-021-03535-w

来源: Springer

【 摘 要 】

The output power of the triboelectric nanogenerator (TENG) strongly depends on the performance of triboelectric materials, especially microstructures and functional groups of them. In this work, aiming at the excellent triboelectric ability, alternate-layered MXene composite films-based TENG with abundant fluorine groups(-F) through layer-by-layer stacking are designed and fabricated. Benefitting from the uniform intrinsic microstructure and increased dielectric constant, when the amount of the Nb2CTx nanosheets increases to 15 wt%, the TENG based on Nb2CTx/Ti3C2Tx composite nanosheets films achieves the maximum output. The short-circuit current density of 8.06 μA/cm2 and voltage of 34.63 V are 8.4 times and 3.5 times over that of pure Ti3C2Tx films, and 3.3 times and 4.3 times over that of commercial poly(tetrafluoroethylene) (PTFE) films, respectively. Furthermore, the fabricated TENG could be attached to human body to harvest energy from human motions, such as typing, texting, and hand clapping. The results demonstrate that the alternate-layered MXene composite nanosheet films through layer-by-layer stacking possess remarkably triboelectric performance, which broaden the choice of negative triboelectric materials and supply a new choice for high output TENG.

【 授权许可】

CC BY