MXene-Based Elastomer Mimetic Stretchable Sensors: Design, Properties, and Applications

Abstract

Flexible sensors based on MXene-polymer composites are highly prospective for next-generation wearable electronics used in human–machine interfaces. One of the motivating factors behind the progress of flexible sensors is the steady arrival of new conductive materials. MXenes, a new family of 2D nanomaterials, have been drawing attention since the last decade due to their high electronic conductivity, processability, mechanical robustness and chemical tunability. In this review, we encompass the fabrication of MXene-based polymeric nanocomposites, their structure–property relationship, and applications in the flexible sensor domain. Moreover, our discussion is not only limited to sensor design, their mechanism, and various modes of sensing platform, but also their future perspective and market throughout the world. With our article, we intend to fortify the bond between flexible matrices and MXenes thus promoting the swift advancement of flexible MXene-sensors for wearable technologies.

MXene Composite Electromagnetic Shielding Materials: The Latest Research Status

“…18 Second, the small pore size in the honeycomb structure is beneficial for increasing the scattering and absorption opportunities of electromagnetic waves in the material, extending their propagation path and thus enhancing the absorption efficiency. 96 When using a 0.5 mm unit size, the conductivity was 387.1 S•m −1 , and the electromagnetic shielding effectiveness was 55 dB, showing a significant improvement, as illustrated in Figure 7c−7d, respectively. Wang et al prepared a three-dimensional Ti 3 C 2 T x Mxene/ Sodium Alginate (SA)/Multi-Walled Carbon Nanotubes (MWCNTs) phase change material using a controllable directional freezing method.…”

“…First, a smaller honeycomb pore size helps the MXene layers to form more continuous and close contact, building an efficient conductive network and thereby improving the overall electrical conductivity of the material . Second, the small pore size in the honeycomb structure is beneficial for increasing the scattering and absorption opportunities of electromagnetic waves in the material, extending their propagation path and thus enhancing the absorption efficiency . When using a 0.5 mm unit size, the conductivity was 387.1 S·m –1 , and the electromagnetic shielding effectiveness was 55 dB, showing a significant improvement, as illustrated in Figure c–d, respectively.…”

Ultrahigh Thermal Conductivity of Epoxy/Ag Flakes/MXene@Ag Composites Achieved by In Situ Sintering of Silver Nanoparticles

“…MXene is a type of transition metal carbide known for its high hydrophilicity and TC, attracting significant attention. − The general formula for its precursors is M n +1 X n T x , where M denotes transition metals, X refers to carbon or nitrogen, and T x represents specific functional groups . The MXene surface contains a large number of functional groups, providing excellent dispersibility and interfacial compatibilitycharacteristics not commonly found in other two-dimensional materials.…”

“…37−39 The general formula for its precursors is M n+1 X n T x , where M denotes transition metals, X refers to carbon or nitrogen, and T x represents specific functional groups. 40 The MXene surface contains a large number of functional groups, providing excellent dispersibility and interfacial compatibil-ity�characteristics not commonly found in other two-dimensional materials. The use of MXene shows promise for developing TCAs with high TC.…”