Research Progress on Two-Dimensional Layered MXene/Elastomer Nanocomposites

Abstract

Two-dimensional (2D) transition-metal carbon/nitrogen/carbon nitride (MXene) has extremely high conductivity and easily modifiable surface functional groups. Compared with graphene, another 2D layered material, MXene is easily dispersed in water owing to its hydrophilic groups. Its unique characteristics make MXene a valuable material. Nanocomposites can be endowed with functionality when MXene is compounded with an elastomer. Particularly in electromagnetic interference shielding and sensing, MXene exhibits extraordinary properties. We review various preparation methods, properties, and applications of MXene and MXene/elastomer nanocomposites and present a summary of the prospects for MXene/elastomer nanocomposites, which are in their initial stage of development and providing promising results.

The latest research progress of conductive hydrogels in the field of electrophysiological signal acquisition

“…104 The surface of MXene has an abundance of functional groups (–OH, –O, –Cl, and –F), which enable it to be well dispersed in water. 105 Due to its excellent hydrophilicity 106 and electrical conductivity, 107 MXene is considered as one of the ideal materials for the preparation of conductive hydrogels. For example, Wang et al 108 prepared a conductive MXene composite polymer (MCP) hydrogel by doping a gelatin-modified MXene into polyacrylamide (PAAm), and the fact that the surface active groups of the MXene nanosheets and gelatin have –NH 2 , –OH and –COOH and many other functional groups of gelatin resulting in non-covalent interactions makes the MXene nanosheets tightly encapsulated with gelatin chains, and thus enables the formation of stable gelatin-modified MXene sheets in MXene/gelatin aqueous dispersions.…”

A polarization-sensitive, high on/off ratio and self-powered photodetector based on Nb2CT x and Nd2CT x @MoS2

“…They share the chemical formula M n+1 X n , where M represents transition group metals and X represents carbon or nitrogen. As a new class of nanomaterials, MXene has been widely studied and shown great potential applications in energy storage, catalysis, medical and so on [6][7][8][9][10][11][12]. In particular, in the field of photo detection, high-performance photodetectors based on two-dimensional materials need to have the characteristics of fast response speed, high quantum efficiency, polarization sensitivity, selfenergy supply, and low cost [13][14][15][16][17][18][19].…”

In situ fabrication of a NiO nanoparticles/single-layered MXene nanosheet Schottky heterojunction toward sensing xylene and formaldehyde

“…22–24 Two-dimensional transition metal carbides, carbonitrides and nitrides (MXenes) have aroused scientific research enthusiasm due to their excellent electrical optical properties and unique sheet morphology. 25–27 Particularly, as a typical MXene, Ti 3 C 2 T x MXene, due to its peculiar properties, has been widely investigated in gas sensors. According to the related studies, combining Ti 3 C 2 T x with metal oxides can not only reduce the working temperature, but also improve the gas sensitivity performance.…”