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Journal ArticleDOI

Graphene nanohybrids: excellent electromagnetic properties for the absorbing and shielding of electromagnetic waves

TLDR
In this paper, the authors systematically combed the structures and electromagnetic functions of graphene hybrids, and demonstrated the advances in the microwave response mechanism, including relaxation, charge transport, magnetic resonance, and eddy currents, as well as magnetic-dielectric synergistic effects.
Abstract
Graphene has been long sought-after over the past few decades because of its multiple functions and broad applications in various fields, such as energy, information, medicine, military equipments, and aerospace. In particular, it has been significantly reported in electromagnetic wave absorbing and shielding fields, promoting it as the most cutting-edge topic. Herein, we systematically comb the structures and electromagnetic functions of graphene hybrids. We demonstrate the advances in the microwave response mechanism, including relaxation, charge transport, magnetic resonance, and eddy currents, as well as magnetic-dielectric synergistic effects. Furthermore, our review mainly focuses on graphene-dispersed systems, flexible graphene papers, graphene hybrids, and 3D graphene architectures.

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Citations
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Journal ArticleDOI

2D MXenes: Electromagnetic property for microwave absorption and electromagnetic interference shielding

TL;DR: In this article, the state-of-the-art in electromagnetic wave absorbing and shielding of MXene-based matrials is evaluated and dissected, highlighting the major problems and bottlenecks.
Journal ArticleDOI

Biomass-Derived Porous Carbon-Based Nanostructures for Microwave Absorption

TL;DR: This review summarizes the EM wave absorption application of biomass-derived PC materials from optimizing structure and designing composition and discusses corresponding synthetic mechanisms and development prospects.
Journal ArticleDOI

Nitrogen-doped Co-C/MWCNTs nanocomposites derived from bimetallic metal–organic frameworks for electromagnetic wave absorption in the X-band

TL;DR: In this article, the nitrogen-doped Co-C/MWCNTs (multi-walled carbon nanotubes) derived from bimetallic metal-organic frameworks (MOFs) were fabricated by a facile two-step method.
References
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Journal ArticleDOI

Graphene-enabled electrically switchable radar-absorbing surfaces

TL;DR: Large-area adaptive radar-absorbing surfaces with tunable reflection suppression ratio up to 50 dB with operation voltages <5 V are reported, providing a significant step in realization of active camouflage systems in microwave frequencies.
Journal ArticleDOI

Nanostructured graphene/Fe3O4 incorporated polyaniline as a high performance shield against electromagnetic pollution

TL;DR: Spectroscopic analysis demonstrates that the presence of GF hybrid structures facilitates strong polarization due to the formation of a solid-state charge-transfer complex between graphene and polyaniline, which leads to the high microwave absorption properties.
Journal ArticleDOI

Electromagnetic properties of Si–C–N based ceramics and composites

TL;DR: Besides the excellent high-temperature mechanical properties, Si3N4 and SiC based ceramics containing insulating or electrically conductive phase are attractive for their tunable dielectric propert...
Journal ArticleDOI

Small magnetic Co-doped NiZn ferrite/graphene nanocomposites and their dual-region microwave absorption performance

TL;DR: In this article, the phase structure, morphology, and magnetic and electromagnetic performance of the nanocomposites were studied by means of modern measurement techniques, and the appearance of dual-region absorption and the mechanism of microwave absorption were discussed in detail.
Journal Article

Graphene-enabled electrically switchable radar absorbing surfaces

TL;DR: In this paper, the authors demonstrate large-area adaptive radar-absorbing surfaces with tunable reflection suppression ratio up to 50 dB with operation voltages <5 V. The results provide a significant step in realization of active camouflage systems in microwave frequencies.
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