Jia-Lin Gao, Li Chang, Ben Niu, Xin-Ci Zhang, Lin Li, Mao-Sheng Cao
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引用次数: 0
Abstract
Adjusting the impedance of materials by modulating their electromagnetic parameters is an effective strategy for obtaining excellent electromagnetic wave (EMW) absorption performance, but there are still challenges in developing high-performance electromagnetic wave (EMW)-absorbing materials. Herein, a dielectric modulation engineering strategy is proposed, and a lightweight 3D hierarchically ordered porous structure based on an MXene and ReS2 (3D OPMRs) was fabricated through directional freeze-drying technology. The 3D nanoflower-like structure of ReS2, which acts as a dielectric regulator factor, effectively controls the dielectric loss characteristics of the composites. The optimized 3D OPMR with a hierarchically ordered porous structure and a light weight (density as low as 0.04 g cm−3) exhibited excellent EMW absorption properties with minimal reflection loss and an effective absorption bandwidth of − 66.20 dB and 4.20 GHz, respectively. The excellent EMW absorption performances originate from the dipole and interfacial polarizations, adjustable conduction loss, and multiple internal reflections. Moreover, computer simulation results validate the attenuation effect of 3D OPMR on electromagnetic energy under real application conditions. Interestingly, the unique hierarchical pore structure endows 3D OPMR with excellent thermal resistance, which expands the application of EMW-absorbing materials in infrared stealth and harsh environments.
期刊介绍：
Advanced Composites and Hybrid Materials is a leading international journal that promotes interdisciplinary collaboration among materials scientists, engineers, chemists, biologists, and physicists working on composites, including nanocomposites. Our aim is to facilitate rapid scientific communication in this field.
The journal publishes high-quality research on various aspects of composite materials, including materials design, surface and interface science/engineering, manufacturing, structure control, property design, device fabrication, and other applications. We also welcome simulation and modeling studies that are relevant to composites. Additionally, papers focusing on the relationship between fillers and the matrix are of particular interest.
Our scope includes polymer, metal, and ceramic matrices, with a special emphasis on reviews and meta-analyses related to materials selection. We cover a wide range of topics, including transport properties, strategies for controlling interfaces and composition distribution, bottom-up assembly of nanocomposites, highly porous and high-density composites, electronic structure design, materials synergisms, and thermoelectric materials.
Advanced Composites and Hybrid Materials follows a rigorous single-blind peer-review process to ensure the quality and integrity of the published work.
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