10 - Two-dimensional transition metal carbide (MXene) for enhanced energy storage

Abstract

Two-dimensional (2-D) materials have emerged as highly conductive and stable materials for enhanced energy-storage applications. A new family of 2-D materials was recently synthesized from a three-dimensional material “MAX” called as “MXene”. MXenes are transition metal carbides with a large interlayer distance and functional groups like –O and –F present on the surface. The 2-D structure of MXene is a significant characteristic in ion adsorption and desorption on the surfaces of structures. MXene shows distinctive properties as an electrode in metal-ion batteries, supercapacitors, and asymmetric energy-storage devices. This chapter provides a brief introduction to 2-D MXenes and their synthesis followed by a review of various MXenes and modified MXenes for improved and superior energy-storage applications.