3D cross-linked graphene or/and MXene based nanomaterials for electromagnetic wave absorbing and shielding

With the rapid digitalization and technological advancements of the modern society, the seriously increasing electromagnetic pollution has created stronger demand for advanced electromagnetic wave shielding and absorbing materials in both civilian and military fields. Multifunctional materials with ultra-lightweight, wide bandwidth, highly flexible and robustness are the future development direction to meet the applications. Graphene and MXene, as two typical 2D nanomaterials, have attracted considerable interests for the electromagnetic wave shielding and absorbing materials. More importantly, three dimensional (3D) cross-linked graphene or/and MXene based materials, where graphene or/ and MXene sheets are interconnected into a macroscopic monolithic bulk material, can achieve excellent electromagnetic interference (EMI) shielding and microwave absorption (MA) performance, together with lightweight, exceptional mechanical properties and so on. This review addresses the construction methods of graphene and MXene based 3D cross-linked materials, and the effects of different fabrication methods toward the structure and EMI shielding and/or MA properties are discussed. Additionally, some perceptions and discussions are proposed for the future studies. (C) 2021 Elsevier Ltd. All rights reserved.

Automated summary

With the increasing electromagnetic pollution, there is a strong demand for advanced electromagnetic wave shielding and absorbing materials that are multifunctional with ultra-lightweight, wide bandwidth, highly flexible, and robust. 2D nanomaterials like graphene and MXene have shown great potential for these applications, while 3D cross-linked graphene or/and MXene based materials have demonstrated excellent EMI shielding and MA performance.