Electromagnetic absorption materials: Current progress and new frontiers

Progress in Materials Science, Journal Year: 2022, Volume and Issue: 127, P. 100946 - 100946

Published: March 17, 2022

Language: Английский

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One-Dimensional Magnetic FeCoNi Alloy Toward Low-Frequency Electromagnetic Wave Absorption

Nano-Micro Letters, Journal Year: 2022, Volume and Issue: 14(1)

Published: Aug. 20, 2022

Rational designing of one-dimensional (1D) magnetic alloy to facilitate electromagnetic (EM) wave attenuation capability in low-frequency (2-6 GHz) microwave absorption field is highly desired but remains a significant challenge. In this study, composite EM absorber made FeCoNi medium-entropy embedded 1D carbon matrix framework rationally designed through an improved electrospinning method. The 1D-shaped demonstrates the high-density and continuous network using off-axis electronic holography technique, indicating excellent loss ability under external field. Then, in-depth analysis shows that many factors, including anisotropy intrinsic physical features alloy, primarily contribute enhanced performance. Therefore, fabricated increasing effective band 1.3 GHz at ultrathin thickness 2 mm. Thus, study opens up new method for design preparation high-performance absorbers.

Language: Английский

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2D MXene Nanomaterials: Synthesis, Mechanism, and Multifunctional Applications in Microwave Absorption

Small Structures, Journal Year: 2022, Volume and Issue: 3(10)

Published: July 16, 2022

MXene nanomaterials stand out among 2D and have been extensively studied by researchers because of their unique layered structure, chemical diversity, outstanding physical properties. In recent years, materials rapidly opened the market for electromagnetic interference shielding technology due to excellent wave absorption (EMA) capability. However, so far, compared with development (EM) technology, there is still much room in construction MXenes application absorption. Herein, strategies, conversion mechanism, applications are reviewed. Through meticulous material design an interdisciplinary approach, expected become one smart tunable absorbers, scenarios will also broader.

Language: Английский

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Magnetic-dielectric synergy and interfacial engineering to design yolk–shell structured CoNi@void@C and CoNi@void@C@MoS2 nanocomposites with tunable and strong wideband microwave absorption

Nano Research, Journal Year: 2022, Volume and Issue: 15(7), P. 6761 - 6771

Published: May 13, 2022

Language: Английский

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Recent progress of perovskite oxides and their hybrids for electromagnetic wave absorption: a mini-review

Advanced Composites and Hybrid Materials, Journal Year: 2022, Volume and Issue: 5(3), P. 2440 - 2460

Published: April 25, 2022

Language: Английский

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Synergistic regulation of dielectric-magnetic dual-loss and triple heterointerface polarization via magnetic MXene for high-performance electromagnetic wave absorption

Journal of Material Science and Technology, Journal Year: 2021, Volume and Issue: 113, P. 128 - 137

Published: Dec. 31, 2021

Language: Английский

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Functional Tailoring of Multi‐Dimensional Pure MXene Nanostructures for Significantly Accelerated Electromagnetic Wave Absorption

Small, Journal Year: 2023, Volume and Issue: 19(41)

Published: June 8, 2023

Transition metal carbide (Ti3 C2 Tx MXene), with a large specific surface area and abundant functional groups, is promising candidate in the family of electromagnetic wave (EMW) absorption. However, high conductivity MXene limits its EMW absorption ability, so it remains challenge to obtain outstanding attenuation ability pure MXene. Herein, by integrating HF etching, KOH shearing, high-temperature molten salt strategies, layered (L-MXene), network-like nanoribbons (N-MXene NRs), porous monolayer (P-MXene ML), layer L) are rationally constructed favorable microstructures states for HF, KOH, KCl/LiCl used functionalize tune microstructure state (F- , OH- Cl- terminals), thereby improving capacity MXene-based nanostructures. Impressively, unique structure, proper electrical conductivity, area, defects, nanostructures achieve good impedance matching, dipole polarization, conduction loss, thus inheriting excellent performance. Consequently, L-MXene, N-MXene NRs, P-MXene ML, L enable reflection loss (RL ) value -43.14, -63.01, -60.45, -56.50 dB matching thickness 0.95, 1.51, 3.83, 4.65 mm, respectively.

Language: Английский

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Ultrabroad band microwave absorption from hierarchical MoO3/TiO2/Mo2TiC2Tx hybrids via annealing treatment

Journal of Advanced Ceramics, Journal Year: 2022, Volume and Issue: 11(9), P. 1466 - 1478

Published: Aug. 31, 2022

Abstract Two-dimensional (2D) transition metal carbide MXene-based materials hold great potentials applied for new electromagnetic wave (EMW) absorbers. However, the application of MXenes in field absorption (EMA) is limited by disadvantages poor impedance matching, single loss mechanism, and easy oxidation. In this work, MoO 3 /TiO 2 /Mo TiC T x hybrids were prepared annealing-treated Mo MXene uniform TiO oxides in-situ grew on layers. At annealing temperature 300 °C, minimum reflection (RL min ) value reaches −30.76 dB (2.3 mm) at 10.18 GHz with a significantly broadening effective bandwidth (EAB) 8.6 (1.8 mm). The generated creating numerous defects heterogeneous interfaces enhance dipolar interfacial polarizations optimize matching . Considering excellent overall performance, can be promising candidate EMA.

Language: Английский

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Controllable seeding of nitrogen-doped carbon nanotubes on three-dimensional Co/C foam for enhanced dielectric loss and microwave absorption characteristics

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 450, P. 138160 - 138160

Published: July 21, 2022

Language: Английский

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Magnetic manganese-based composites with multiple loss mechanisms towards broadband absorption

Nano Research, Journal Year: 2022, Volume and Issue: 15(6), P. 5590 - 5600

Published: March 29, 2022

Language: Английский

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