Supercapacitor Material Specifications and Functions from MXenes

The scientific community has given special attention to transition metal carbides and nitrides (MXenes), a rapidly expanding family of two-dimensional materials, due to their distinctive properties of high specific surface area, superior conductivity, better mechanical properties, tunability of electrochemical characteristics and bandgap. It has previously been established that MXene-based materials may serve as a practical electrode for high-performance energy storage devices, notably in supercapacitors. However, because of the restacking and aggregation of their layers, MXenes have several disadvantages that limit further investigation. Their inherent advantages as electrode materials for electrochemical energy storage are ensured by their 2D form and excellent electrical characteristics. In this study, we provide an overview of current developments in MXene development with a focus on electrochemical energy storage applications. Additionally, the potential and difficulties of MXene-based materials with regard to electrochemical energy storage are briefly reviewed. This article also, provides a strong emphasis on the most recent advancements and promising prospects for MXenes and its hybrids with transition metal dichalcogenides (TMDs), conducting polymers, transition metal oxides (TMOs), carbon-based materials, etc., for supercapacitors, provided together with the basic characteristics, synthesis strategies, and etching techniques, which will be very beneficial to academia and material scientists.