Lamellar MXene: A novel 2D nanomaterial for electrochemical sensors

MXenes, as recently emerging lamellar two-dimensional (2D) materials of transition metal carbides and/or nitrides, have attracted intensive attention for various applications in sensors, catalysis, energy storage, and biomedicine owing to their fascinating and technologically useful properties. This review presents the current progress of MXene-based materials applied in the field of electrochemical sensors. Firstly, how synthetic strategies and surface modification affect the properties of MXene was emphasized. Secondly, MXene as an electrode material for constructing electrochemical sensors based on MXene nanocomposites, especially metal nanoparticles (MNPs)/MXene, conductive polymers (CPs)/MXene, and carbon materials/MXene nanocomposites, was well discussed. Finally, the challenges and outlooks in this field with possible solutions and future opportunities are discussed.

Automated summary

MXenes, a recently emerged class of two-dimensional materials, have shown promising applications in electrochemical sensors due to their unique properties. This review highlights the impact of synthetic strategies and surface modification on MXene properties, and discusses the use of MXene-based nanocomposites in sensor construction, presenting challenges and future opportunities in the field.