MXenes for Pseudocapacitors

Abstract

The emergence of transition metal carbides/nitrides (MXene) in 2011 has sparked significant interest in the development of 2D materials for energy storage applications. MXene's layered structure offers several advantages, such as increased active sites, rapid ionic diffusion, hydrophilicity, and a larger surface area. Moreover, the surface chemistry of MXene exhibits high-rate pseudocapacitance characteristics. This chapter aims to discuss various methods to alter the interlayer distance of MXenes and also discuss how these interlayers affect the electrochemical properties of the materials. Furthermore, the chapter explores various composites and hybrid structures involving MXene for pseudocapacitors. The storage capacity and kinetics of MXene are described in the context of pseudocapacitors. Finally, the challenges and prospects of MXene for supercapacitor applications are discussed.