Controlled formation of multiple core-shell structures in metal-organic frame materials for efficient microwave absorption

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 648, P. 25 - 36

Published: June 5, 2023

Language: Английский

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Modulation Engineering of Electromagnetic Wave Absorption Performance of Layered Double Hydroxides Derived Hollow Metal Carbides Integrating Corrosion Protection

Small, Journal Year: 2023, Volume and Issue: 20(8)

Published: Oct. 10, 2023

Abstract Layered double hydroxides (LDHs) with unique layered structure and atomic composition are limited in the field of electromagnetic wave absorption (EMA) due to their poor electrical conductivity lack dielectric properties. In this study, EMA performance anticorrosion hollow derived LDH composites improved by temperature control design using ZIF‐8 as a sacrifice template. Diverse regulation modes result different mechanisms for EMA. process, chemical reactions tune products construct refined optimize LDHs loss. Additionally, phase interfaces generated components impedance matching enhance interfacial polarization. The results show that prepared NCZ (Ni3ZnC0.7/Co3ZnC@C) has minimum reflection loss (RL min ) ‐58.92 dB thickness 2.4 mm maximum effective bandwidth (EAB max 7.36 GHz mm. Finally, its special composition, sample exhibits excellent This work offers essential knowledge designing engineering materials from metal organic framework (MOF) cutting‐edge nanostructures.

Language: Английский

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Compositional and Hollow Engineering of Silicon Carbide/Carbon Microspheres as High-Performance Microwave Absorbing Materials with Good Environmental Tolerance

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)

Published: April 2, 2024

Abstract Microwave absorbing materials (MAMs) characterized by high absorption efficiency and good environmental tolerance are highly desirable in practical applications. Both silicon carbide carbon considered as stable MAMs under some rigorous conditions, while their composites still fail to produce satisfactory microwave performance regardless of the improvements compared with individuals. Herein, we have successfully implemented compositional structural engineering fabricate hollow SiC/C microspheres controllable composition. The simultaneous modulation on dielectric properties impedance matching can be easily achieved change composition these composites. formation structure not only favors lightweight feature, but also generates considerable contribution attenuation capacity. With synergistic effect structure, optimized composite exhibits excellent performance, whose strongest reflection loss intensity broadest effective reach − 60.8 dB 5.1 GHz, respectively, its actually superior those most previous studies. In addition, stability tests capacity after exposure harsh conditions Radar Cross Section simulation data demonstrate that from optimization a bright prospect

Language: Английский

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Hierarchical porous molybdenum carbide synergic morphological engineering towards broad multi-band tunable microwave absorption

Nano Research, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 12, 2024

Language: Английский

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Enhancing electromagnetic wave absorption in carbon fiber using FeS2 nanoparticles

Nano Research, Journal Year: 2023, Volume and Issue: 16(7), P. 9591 - 9601

Published: May 30, 2023

Language: Английский

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