Advances in MXene-based triboelectric nanogenerators

As pillars of the fourth industrial revolution, portable electronic devices and the Internet of Things are rapidly expanding. A sustainable energy supply for these devices is crucial to the sustainability of this network. It has been less than two decades since a triboelectric nanogenerator (TENG) was first introduced as a sustainable solution, and the development of these devices is accelerating rapidly. Material, structure, application, and performance optimization of these devices are all studied. The introduction of the MXene family in recent years has led to the development of TENG devices using these 2D materials. Various types of MXene behavior have been reported due to its diversity and customization, as well as its structural features caused by its 2D structure. These advantages have led MXene to its use as electrodes, electron trappers, and friction layers in TENG devices, both independently and as a complex. This article reviews studies on MXene-based TENG devices. The first part examines studies around three axes: MXene type, fabrication method, and application. The second section ranks and compares the performance parameters of these studies, and the third section provides details on the studies conducted. Finally, gaps and research opportunities in this field are highlighted, providing guidance for the future research.