Assembly of Multi-Dimensional Microstructures of MXene towards Wearable Electromagnetic Attenuating Devices

MXene is a competitive and attractive 2D material used in wearable electromagnetic devices due to its laminated nanostructure, abundant surface terminations and high conductivity. Assembling MXene nanosheets into multi-dimensional microstructures is considered to be an effective method for improving the overall performance of MXene-based composites, especially their electromagnetic attenuation and wearability performance. This article focuses on the strategies for assembling multi-dimensional MXene microstructures, from 0D spheres and 1D fibers to 2D films and 3D architectures. The origin of the electromagnetic response of MXene microstructures is revealed, and the corresponding electromagnetic absorption and interference shielding performance are shown. Furthermore, additional extended functions that serve wearable electromagnetic attenuation devices are highlighted. Finally, the application prospects and challenges of wearable electromagnetic devices, as well as the function integration of multi-dimensional MXene composites, are summarized.