A review of carbon-based magnetic microwave-absorbing composites with one-dimensional structure

Biomass-Derived Integrated Hierarchical Porous Carbon Embedded with Ni@C Nanoparticles for High-Performance and Cost-Effective Microwave Absorbent Design

“…the large conductivity of carbon would cause low skin depth, meaning most microwaves would fail to enter the interior of the MAMs. 9 Therefore, combining carbon-based materials with magnetic particles can improve their wave-absorbing properties and achieve strong absorption. Meanwhile, magnetic particles can adjust the impedance matching of carbon materials and increase the phase interface.…”

“…Carbon materials can enhance the chemical corrosion resistance of magnetic particles and reduce their density. 9 Magnetic charges based on ferromagnetic metals (for example, iron, nickel, cobalt or their alloys), are usually utilized as they enable a strong absorption in several spectral ranges of interest, making carbon-based composite absorbing materials realize the effective combination of various absorbing mechanisms. 10 Common carbon materials include graphene, carbon nanotubes, carbon fiber.…”

Effect of Reduced Graphene Oxide on Microwave Absorbing Properties of Al1.5Co4Fe2Cr High-Entropy Alloys

“…Therefore, it is an effective way to improve the microwave absorbing properties of materials by compounding two materials together to improve the dielectric or magnetic loss capacity. By now, the research of carbon-based magnetic composites has made great progress, and the absorbers prepared by combining ferromagnetic materials and one-dimensional carbon materials (carbon fiber, carbon nanotubes, and biomass-derived carbon) have shown better absorption performance than single absorbers [8]. rGO is a new carbon material that also has the potential for electromagnetic absorption.…”

An optimized impedance matching construction strategy: carbon nanofibers inlaid with Ni nanocrystals by electrospinning for high-performance microwave absorber

“…The three-dimensional network structure promotes conduction loss, and the rich heterogeneous interfaces generate a large amount of interface polarization, improving microwave absorption performance. 10 It cannot just generate dielectric loss as with magnetic loss through various loss mechanisms, but it can also avoid the drawback of a high proportion of a single magnetic metal-absorbing material. 11 For instance, Han et al reported a CNF–NiCo 2 O 4 composite by facile electrospinning and in situ delamination heat treatment methods.…”