Magnetic media synergistic carbon fiber@Ni/NiO composites for high-efficiency electromagnetic wave absorption

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 492, P. 152245 - 152245

Published: May 14, 2024

Language: Английский

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Fabrication of nitrogen-doped reduced graphene oxide/porous magnesium ferrite@silica dioxide composite with excellent dual-band electromagnetic absorption performance

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 473, P. 145224 - 145224

Published: Aug. 7, 2023

Language: Английский

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Tailored heterogeneous interface based on porous hollow In-Co-C nanorods to construct adjustable multi-band microwave absorber

Journal of Material Science and Technology, Journal Year: 2023, Volume and Issue: 181, P. 128 - 137

Published: Oct. 26, 2023

Language: Английский

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Enhancing electromagnetic wave absorption with core‐shell structured SiO₂@MXene@MoS₂ nanospheres

Carbon Energy, Journal Year: 2024, Volume and Issue: 6(8)

Published: Feb. 15, 2024

Abstract Material composition and structural design are important factors influencing the electromagnetic wave (EMW) absorption performance of materials. To alleviate impedance mismatch attributed to high dielectric constant Ti 3 C 2 T x MXene, we have successfully synthesized core‐shell structured SiO @MXene@MoS nanospheres. This architecture, comprising as core, MXene intermediate layer, MoS outer shell, is achieved through an electrostatic self‐assembly method combined with a hydrothermal process. complex structure not only provides variety loss mechanisms that effectively dissipate energy but also prevents self‐aggregation nanosheets. Notably, synergistic combination highly conductive enables suitable composites, ensuring optimal matching. Therefore, nanospheres exhibit excellent EMW performance, featuring remarkable minimum reflection (RL min ) −52.11 dB (2.4 mm). It noteworthy these achieve ultra‐wide effective bandwidth (EAB) 6.72 GHz. work novel approach for designing synthesizing high‐performance absorbers characterized by “wide strong loss.”

Language: Английский

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Construction of core-shell structured SiO2@MoS2 nanospheres for broadband electromagnetic wave absorption

Applied Surface Science, Journal Year: 2023, Volume and Issue: 628, P. 157355 - 157355

Published: April 27, 2023

Language: Английский

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Self-assembly tungsten selenide hybrid ternary MOF derived magnetic alloys via multi-polarization to boost microwave absorption

Nano Research, Journal Year: 2023, Volume and Issue: 17(3), P. 1625 - 1635

Published: Nov. 4, 2023

Language: Английский

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Phase Engineering on MoS₂ to Realize Dielectric Gene Engineering for Enhancing Microwave Absorbing Performance

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(32)

Published: March 28, 2024

Abstract Polarization relaxation loss caused by defects and interfaces has become a fascinating electromagnetic wave (EMW) mechanism. However, the logical relationship between impedance matching various mechanisms requires further elucidation to facilitate more comprehensive in‐depth research. Herein, phase engineering on molybdenum disulfide (MoS 2 ) is proposed as main controller of permittivity, offering straightforward highly effective method for regulating permittivity. Through control engineering, small gradient, monotonic change permittivity across substantial area achieved, leading gradual transition material system from strong but mismatching weak EMW transparent phase. Thanks fundamental regulation characteristic attenuation capacity dielectric gene controlled combined with ingenious coordination sulfur vacancy‐induced polarization interfacial polarization, t‐60 harvests an absorption band 6.8 GHz minimum reflection −59.8 dB. This study effectively expands pool improves research logic mechanisms, valuable insights development advanced absorbing materials.

Language: Английский

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3D-printed conical structure absorber based on NFG/Fe3Si/SiCnw ternary composites for multifunctional integrated electromagnetic microwave absorption

Composites Part B Engineering, Journal Year: 2024, Volume and Issue: 274, P. 111243 - 111243

Published: Feb. 2, 2024

Language: Английский

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Built‐In Electric Field Enhancement Strategy Induced by Cross‐Dimensional Nano‐Heterointerface Design for Electromagnetic Wave Absorption

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: July 1, 2024

Abstract Nano‐heterointerface engineering has been demonstrated to influence interfacial polarization by expanding the interface surface area and constructing a built‐in electric field (BEF), thus regulating electromagnetic (EM) wave absorption. However, dielectric‐responsive mechanism of BEF needs further exploration enhance comprehensive understanding polarization, particularly in terms quantifying optimizing strength. Herein, “1D expanded 2D structure” carbon matrix is designed, semiconductor ZnIn 2 S 4 (ZIS) introduced construct carbon/ZIS heterostructure. The cross‐dimensional nano‐heterointerface design increases coupling sites induces an increase Fermi level difference on both sides modulate distribution charges, thereby strengthening at interface. synergistic effect leads excellent EM absorption performance (minimum reflection coefficient RC min = −67.4 dB, effective bandwidth EAB 6.0 GHz) This work introduces general modification model for enhancing inspires development new strategies functional materials with unique electronic behaviors through heterointerface engineering.

Language: Английский

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Hollow spherical SiC@Ni composites towards the tunable wideband electromagnetic wave absorption

Composites Part B Engineering, Journal Year: 2024, Volume and Issue: 276, P. 111361 - 111361

Published: March 6, 2024

Language: Английский

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