Urchin-like Fe3O4@C with core-shell structure modified 2D MXene for high-performance microwave absorption

3D Lightweight Interconnected Melamine Foam Modified with Hollow CoFe2O4/MXene toward Efficient Microwave Absorption

“…To solve these problems, MXenes are often combined with magnetic materials to increase the loss type and optimize the impedance matching. , Multilayered MXenes integrate with composite absorbers, such as in CoFe/Ti 3 C 2 T x , CoFe 2 O 4 /Ti 3 C 2 T x , and Fe 3 O 4 /Ti 3 C 2 T x , via solvothermal methods. Few-layered MXenes often combine magnetic materials, such as in Ti 3 C 2 T x /Ni, Ti 3 C 2 T x /NiCo 2 S 4 , and Fe 3 O 4 @C/Ti 3 C 2 T x , via electrostatic forces. Compared with magnetic metals and alloys, spinel ferrites exhibit superior chemical stability, heightened resistivity, and saturation magnetization and have been demonstrated to possess exceptional microwave absorption capabilities. , Guo et al solvothermally prepared accordion-shaped MXene/CoFe 2 O 4 and studied the EMW absorptions for different mass ratios of CoFe 2 O 4 and MXenes, as well as for pure MXenes and CoFe 2 O 4 .…”

Review of Three-Dimensional Graphene and Related Composite Materials for Microwave Absorption

“…In recent years, with the continuous progress in scientific research and constant development of communication technology, electronic devices have infiltrated many aspects of everyday life; this is particularly notable in the industrial, commercial, and medical sectors. − However, while these electronic devices have improved the quality of human life, they also pose potential hazards . The use of a large number of electronic devices not only causes serious electromagnetic pollution but also seriously affects human health and the living environment. − In the military field, with the continuous improvement of radar detection technology, stealth technology utilized in weapons and equipment is increasingly important to their survival on the battlefield.…”

“…After years of development, various MAMs have been reported and practically utilized. Traditional MAMs include magnetic metal particles − and ferrites, − which primarily rely on magnetic loss, and metal oxides, ,, carbides, , and carbon-based materials, ,− which primarily rely on dielectric loss. In order to pursue better MA effects, researchers have successively developed cutting-edge materials in the field of MA, such as topological insulator MAMs, nanoporous metal organic framework (MOF) MAMs, two-dimensional transition metal sulfide composites, magneto-optical composites, and 3D carbon materials …”