MoS₂-Decorated Tubular Carbon Nanostructures with Enhanced Dielectric Loss for Boosting Microwave Absorption

Abstract

The construction of hierarchical structures has been demonstrated to be an effective method for achieving highperformance microwave absorption. In this study, a flower-like MoS 2 nanosheet-coated tubular carbon composite with an average diameter of approximately 560 nm was synthesized via a straightforward ion-exchange and pyrolysis strategy. The growth of MoS 2 nanosheets, the presence of heterojunction surfaces, and the construction of the hollow structure collectively enhance the dielectric loss of the material, thereby optimizing the microwave absorption properties of the material. The C@MoS 2 nanocomposite demonstrates a minimum reflection loss of −66.8 dB and an effective absorption bandwidth of 4.8 GHz when the thickness is only 1.6 mm. This work presents a synergistic strategy for the design of layered hollow structures.

Embedded Ni/NiO Heterostructure in MoO3–x Nanorods toward Reinforced Interfacial Polarization for Electromagnetic Wave Absorption

“…The EMW absorption performances of the absorbers were evaluated by the measured electromagnetic parameters based on the transmission line theory. , Generally, the absorption performances are evaluated by the minimum RL values and EAB (where the RL value is less than −10 dB corresponding to the frequency range). Therefore, the absorbers with a lower RL value and wider absorption frequency bandwidth range are promising for practical application.…”