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ACS APPLIED MATERIALS & INTERFACES
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Chang Liu et al.
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ACS APPLIED ELECTRONIC MATERIALS
(2023)
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Dharmendra Nath Pandey et al.
Summary: The present study strategically designed multilayer shields to enhance absorption properties in microwave frequency range. Factors such as number of layers and composition were found to significantly influence the overall electromagnetic shielding effectiveness.
JOURNAL OF INDUSTRIAL TEXTILES
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Polymer Science
Jianjun Yin et al.
Summary: Fabrics, as basic materials with specific properties, have been widely used in electromagnetic wave protection and control due to their low density, mechanical properties, and designability. Different types of fabrics have been identified and the research on fabric structure needs to be improved to meet the requirements of different electromagnetic properties and application conditions.
Review
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Ming Qin et al.
Summary: Comprehensive views on dielectric loss mechanisms provide important guidance for understanding the attenuation behavior of materials. Current researches focus more on materials synthesis rather than in-depth mechanism study. Therefore, further research on in-depth mechanisms, emphasis on new dielectric loss mechanisms, and new modulation strategies are needed to achieve simple and effective EM wave attenuation behavior modulation.
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Luo Kong et al.
Summary: For non-magnetic materials, polarization and conductivity loss are crucial factors affecting electromagnetic wave absorption properties. The study focuses on heterogeneous interfacial polarization, using carbon nanotubes/pyrolytic carbon hollow microspheres (CNTs/PyC HMs) with numerous interfaces. The crystallization degree of CNTs can be adjusted, leading to enhanced conductivity differences and interfacial polarization intensity. CNTs/PyC HMs with a special hollow structure exhibit excellent dielectric loss capability, making them suitable for electromagnetic wave absorption applications.
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Zhixin Cai et al.
Summary: Efficient electromagnetic wave absorption is important for safe utilization of electromagnetic wave technologies. Aerogels with 3D continuous and highly porous network structure, compared to powder-based materials, have demonstrated coordinate impedance matching and attenuation characteristics. This study reports the preparation and properties of an assembled aerogel with hierarchically network structure composed of carbon microtube, SiC nanowires, and Ni nanoparticles. The aerogel exhibits low density, broad absorption bandwidth, strong reflection loss, and good electromagnetic wave absorption performance.
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Long Ni et al.
Summary: Polyimide/carboxyl functionalized multi-walled carbon nanotubes composite aerogels with aligned slit-like channels structure were successfully synthesized, showing anisotropic electrical conductivity, electromagnetic wave absorption, and compression properties. One composite aerogel exhibited minimal reflection loss at 12.8 GHz and wide effective absorption bandwidth, demonstrating great potential for aerospace applications.
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Dawei Hu et al.
Summary: In this study, an ultralight three-dimensional aerogel assembled with two-dimensional Ti3C2Tx and one-dimensional Kevlar nanofibers was fabricated via freeze-drying followed by annealing. The aerogel exhibited a broad effective absorption bandwidth and strong anticorrosive ability, and demonstrated excellent comprehensive properties including anti-compressive performance, hydrophobicity, and high absorption capacities for organic liquids.
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Zhenjun Wang et al.
Summary: Using biomass as raw material to prepare porous carbon is an environmentally friendly method to deal with electromagnetic pollution. In this study, a porous Ni@BPC-based composite material was synthesized, and the electromagnetic parameters of the composites were effectively tuned. The synthesized composite with a 3D porous structure exhibited remarkable enhancement of microwave absorption, showing potential applications in microwave absorption.
JOURNAL OF ALLOYS AND COMPOUNDS
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Hui Ji et al.
Summary: This study prepared glass-coated amorphous magnetic microwires (GAWs) in the form of filament fibers (LFs) and short fibers (SFs) with different electromagnetic (EM) performance. LFs acted as EM shielding materials, while SFs demonstrated excellent microwave-absorbing (MA) properties. The MA properties of SFs could be controlled by adjusting their length, content, and lamination.
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Na Chen et al.
Summary: Ni particles are successfully prepared in this work, and Ni@C is subsequently designed and fabricated, both of which exhibit excellent performance in electromagnetic wave absorption, showing potential for future applications.
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Zhen Shan et al.
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Yashan Huo et al.
Summary: The Ni/SiC/C composite nanofibers synthesized through electrospinning and sputtering show significantly improved electromagnetic wave absorption performance, with optimal reflection loss achieved in the C-band.
CHEMICAL PHYSICS LETTERS
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Ji-You Zong et al.
Summary: The developed fabric integrates silver nanowire, ferroferric oxide nanoparticles, and polydimethylsiloxane onto a commercial fabric, providing excellent EMI shielding and passive radiation heating functions. With a high solar energy absorptivity and low mid-infrared emissivity, the fabric can effectively heat the human body without requiring electricity, while also offering a super-high EMI shielding property. This multifunctional fabric has the potential to expand the application scope of current EMI shielding fabrics and protect the human body from both electromagnetic radiation harm and cold climate injury.
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Yue Zhou et al.
Summary: Graphene composite aerogels exhibit excellent microwave absorption properties and are a versatile material. By utilizing various dielectric and conductive mechanisms, the material's microwave absorption performance is enhanced. The material not only has outstanding absorption properties, but also performs well in terms of mechanical properties and heat resistance.
COMPOSITES PART B-ENGINEERING
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Meng Zhu et al.
Summary: This study developed an anisotropic MXene@Wood nanocomposite aerogel with EMI shielding and EM absorbing properties in different directions by modifying natural wood, assembling f-Ti3C2Tx nanosheets, and achieving ideal structural load carrying capacity at the parallel growth direction and high compressibility at the vertical growth direction simultaneously.
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Materials Science, Multidisciplinary
Baolei Wang et al.
Summary: Developing high-efficiency microwave absorption materials is crucial for solving electromagnetic pollution issues, with carbon/magnetic metal composites being promising candidates for high-performance microwave absorbers. Understanding the mechanisms of microwave absorption and exploring the preparation methods and properties of these composites indicate great potential for the future development of high-performance microwave absorption materials.
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Yuxin Zuo et al.
