Synthesis and Applications of Two-Dimensional V2C MXene

MXenes are general term for two-dimensional transition metal carbides. nitrides and carbonitrides. which have been widely used in energy storage. catalysis. electromagnetics and other fields due to their unique physical and chemical properties. As an important member of MXenes. V2C MXene has high conductivity. low transport barrier and pseudocapacitve performance ascribed to the multiple oxidation states of vanadium. Consequently. it has highlighted performances in many aspects. especially in electrochemical energy storage. However. the difficulty of synthesis caused by its high formation energy and the structural instability of V2C MXene have restricted its development. This article reviews the progress of V2C MXene in synthesis. structure. properties and applications. focusing on synthesis methods and applications in electrochemical energy storage and electrocatalytic hydrogen evolution reaction. Meanwhile. the challenges and future perspective in the application of V2C MXene are outlined.