Unveiling interfacial chemistry: The importance and applications of MXene-based materials in energy storage devices

The demand for high-efficiency energy storage devices (ESDs) is increasing due to the growth of both the renewable energy and electric vehicle markets. MXenes, a class of 2D transition carbonates/nitrates, have emerged as promising materials for energy applications due to their unique properties and surface chemistry. For the first time in this article, we provide insight into the chemistry of MXenes in energy storage applications and its importance in this field. We have discussed MXene-based materials in terms of their synthesis, properties, and applications as electrodes and electrolyte materials. The interfacial chemistry of MXenes is explored, including the surface chemistry and interactions with the electrode and electrolyte. The importance of MXene-based materials in energy storage applications is highlighted, including high energy density (ED), good cycling stability, rate performance, versatility and adaptability to different energy storage systems. Finally, the potential of the MXene-based materials in revolutionizing energy storage technology and future development directions are discussed.