MXene-Based Nanocomposites for Piezoelectric and Triboelectric Energy Harvesting Applications

Due to its superior advantages in terms of electronegativity, metallic conductivity, mechanical flexibility, customizable surface chemistry, etc., 2D MXenes for nanogenerators have demonstrated significant progress. In order to push scientific design strategies for the practical application of nanogenerators from the viewpoints of the basic aspect and recent advancements, this systematic review covers the most recent developments of MXenes for nanogenerators in its first section. In the second section, the importance of renewable energy and an introduction to nanogenerators, major classifications, and their working principles are discussed. At the end of this section, various materials used for energy harvesting and frequent combos of MXene with other active materials are described in detail together with the essential framework of nanogenerators. In the third, fourth, and fifth sections, the materials used for nanogenerators, MXene synthesis along with its properties, and MXene nanocomposites with polymeric materials are discussed in detail with the recent progress and challenges for their use in nanogenerator applications. In the sixth section, a thorough discussion of the design strategies and internal improvement mechanisms of MXenes and the composite materials for nanogenerators with 3D printing technologies are presented. Finally, we summarize the key points discussed throughout this review and discuss some thoughts on potential approaches for nanocomposite materials based on MXenes that could be used in nanogenerators for better performance.

Automated summary

This article presents the superior advantages of 2D MXenes for nanogenerators and reviews the recent progress in this field. The topics covered include the applications of MXenes in nanogenerators, renewable energy, classifications and working principles of nanogenerators, materials for energy harvesting, and combinations of MXene with other active materials. Furthermore, the synthesis and properties of MXene, MXene nanocomposites with polymeric materials, and internal improvement mechanisms of MXenes for nanogenerators using 3D printing technologies are discussed in detail. Finally, the key points of this review are summarized, and some thoughts on potential approaches for better performance of nanogenerators using MXene-based nanocomposite materials are presented.