Core-shell structured nanocomposites formed by silicon coated carbon nanotubes with anti-oxidation and electromagnetic wave absorption

Recent Progress of One-Dimensional Nanomaterials for Microwave Absorption: A Review

“…For example, combining the hollow structure with the core−shell structure, which will take full advantages of its multiple reflections and lightweight property, thus greatly improves the EMWA performance of the materials. Zhou et al 122 synthesized carbon nanotubes (CNTs)/Si nanocomposite with a core−shell and hollow structure. The surface of CNTs was covered with a silicon shell.…”

Marine polysaccharide-based electromagnetic absorbing/shielding materials: design principles, structure, and properties

“…155–158 There are a large number of oxygen-containing functional groups (–COOH and –OH) and defects on the surface of the oxidized CNTs, 159 which not only anchor the magnetic Fe 3 O 4 particles tightly on the surface of CNTs and generate multi-interfacial heterostructures that contribute to interfacial polarization, but also produce abundant dipoles that contribute to relaxation loss with Fe 3 O 4 and several defects as polarization centers. 160 The 3D porous conductive network combining the advantages of SA and CNTs, and the effective multi-interface heterostructures constructed between the two types of magnetic particles and the derived carbon skeletons can be obtained by crosslinking Ni 2+ with the SA–Fe 3 O 4 /CNTs hybrid matrix and carbonizing. The superior EMW absorbing performance of SA–Ni–(Fe 3 O 4 /CNTs)- X with a 25% Fe 3 O 4 /CNTs molar percentage can be assigned to the synergistic effect of multiple EM loss mechanisms such as suitable impedance matching, high attenuation, conductive loss, Debye relaxation, and interfacial polarization, whose RL min reached −32 dB at 10.8 GHz with a thickness of 2 mm, and the EAB is 3.2 GHz.…”

Flexible PVA/Mn Ferrite/(MoS2)x Nanocomposites With Electromagnetic Wave Absorption Performance for Light Dependent Resistances

“…These materials have the potential to generate high levels of dielectric loss due to their exceptional conductivity and dielectric properties. Consequently, they hold great promise for various applications in the field of dielectric loss absorbing materials [29] …”