Tailoring MXenes for Energy Storage: Insights into Element Doping

Abstract

Element doping can endow MXenes with enhanced electrochemical properties, catalytic performance, and structural characteristics. This extends the arsenal of MXenes and their potential for energy storage applications. This review focus on the doping mechanism, doping methods and applications of MXenes. Firstly, we systematically summarize the mechanism of element doping MXenes from three aspects: lattice substitution, functional substitution and surface modification. Subsequently, it provides an exposition of doping strategies and synthesis methods employed in element doping MXenes. And the application of element doping MXenes in energy storage, including rechargeable batteries and supercapacitors, as well as other fields encompassing electromagnetic shielding, light-heat conversion and water treatment, are also highlighted. Finally, further opportunities for the work and potential applications of element doping MXenes are presented. This work aims to provide novel insights into elemental doping improves the electrochemical performance of MXenes, advancing its development in the field of energy storage.