2D MXene Nanomaterials: Synthesis, Mechanism, and Multifunctional Applications in Microwave Absorption

Abstract

Scheme 1. a) Schematic diagram of obtaining MXene nanoflakes by adopting a certain etching strategy. b) Schematic diagram of the potential EMA mechanism analysis of MXene structure. c) Schematic illustration of the multifunctional application of MXene composites.

Electromagnetic absorption enhancing mechanisms by modified biochar derived from Enteromorpha prolifera: a combined experimental and simulation study

“…4a, the ε′ values of all composites show a downward tendency in the range of 2-18 GHz attributed to the Debye relaxation. [36][37][38] When an external EM field is applied, the dipoles existing in the composites cannot change their orientations quickly to adapt to the alternating EM field and realize the rearrangement. Then the complex permittivity tends to decrease with the increase of frequency.…”

Carbon-encapsulated core–shell structure ZnFe2O4 sphere composites coupled with excellent microwave absorption and corrosion resistance

“…24 Numerous studies have demonstrated that when both the core and shell are made from magnetic materials, the magnetic coupling effect generated between them could reduce the magnetic loss. 25,26 Therefore, a carbon-encapsulated magnetic material with a core-shell structure is a worthy strategy to investigate.…”

Hierarchical Co/CoO/FeO/C nanocomplex derived from Co(OH)2@NH2-MIL-88 to aid highly efficient microwave absorption

“…This has been done by developing microwave absorption materials (MAMs). 4,5 Hierarchical microstructures 6 (e.g., foam, 7 core shells, 8,9 multilayers, 10,11 carbon aerogels, 12 hollow structures 13,14 ) in microwave absorbents have become potential candidates for rich interfacial scattering and interfacial polarization. Nevertheless, the complicated synthetic steps and high energy consumption hamper large-scale application.…”