Enhanced microwave absorption using multiple heterostructures derived from in-situ grown Sn-metal-organic framework on La-doped Fe3O4

Carbon, Journal Year: 2024, Volume and Issue: 230, P. 119613 - 119613

Published: Sept. 7, 2024

Language: Английский

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Integrating nitrogen doping with multi-heterogeneous interfaces of NRGO/ZnFe2O4@PPy composite aerogels for efficient and wideband electromagnetic wave absorption

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159819 - 159819

Published: Jan. 1, 2025

Language: Английский

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In-situ growth of MCo2O4 nanospheres (M: Mn, Ni) over g-C3N4@PPy as high-performance and novel composites for sustainable supercapacitors

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 90, P. 111727 - 111727

Published: May 3, 2024

Language: Английский

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Modulating morphologies and electromagnetic wave absorption performances of 3d-4f PBA derivatives with transition metal ions

Carbon, Journal Year: 2024, Volume and Issue: 228, P. 119315 - 119315

Published: June 6, 2024

Language: Английский

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A Comparative Study of the Linear/Nonlinear Optical, and Dielectric Properties of PVA/CMC/(1-x)ZnWO4-xPbS Blended Polymers for Optoelectronic Applications

ECS Journal of Solid State Science and Technology, Journal Year: 2024, Volume and Issue: 13(10), P. 103009 - 103009

Published: Oct. 1, 2024

An analysis was conducted on the optical, structural, and dielectric characteristics of PVA/CMC/(1−x)ZnWO 4/x PbS blends. The structures filler samples, undoped, doped blends were examined using X-ray diffraction. crystallite sizes various phases in samples are affected by amount nanocomposite. morphologies different explored scanning electron microscopy. blend exhibited superior absorption Ultraviolet A (UVA) B (UVB) types addition to visible spectrum. optical band gaps minimized (5.37, 5.56, 4.11) (4.76, 3.14, 2.92) eV for direct indirect transitions, respectively, when PVP/CMC with nanocomposite had 10% PbS. highest refractive index, constant,and nonlinear parameter values achieved loaded ZnWO4 only while conductivity obtained as contained 15% fluorescence intensity observed fillers did not contain PbS, it decreased concentration increased.

Language: Английский

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Controllable Fabrication of MnCo₂O₄@Polypyrrole@MXene Ternary Composites for Electromagnetic Wave Absorption

Journal of Applied Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 9, 2025

ABSTRACT Nowadays, excessive microwave radiation has become one of the urgent factors affecting human health. To solve negative effects, electromagnetic wave‐absorbing materials have gradually indispensable applications. Here, MnCo 2 O 4 @polypyrrole (PPy)@MXene (MPM) ternary composites are successfully synthesized by combination hydrothermal synthesis, high‐temperature sintering, in situ polymerization method, and low‐temperature freeze drying. The synergistic effect between dielectric loss magnetic , Ppy, MXene is studied detail, showing prepared excellent absorption properties. MPM‐1 exhibits minimum reflection (RL min ) −62.99 dB at 16.04 GHz under ultra‐thin thickness (1.21 mm, 50 wt%), effective bandwidth (EAB) 3.94 (13.44–17.38 GHz) 1.28 mm (50 wt%). MPM thickness, wide bandwidth, properties, which ascribed to loss, multiple scattering effects core–shell structure. These can be used as a significant wave absorbing material, provide new research idea for application composite materials.

Language: Английский

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The C@FeCo Coaxial Composite Fibers with Enhanced Interface Polarization and Magnetic Response toward Outstanding Electromagnetic Wave Absorption

Carbon, Journal Year: 2025, Volume and Issue: unknown, P. 120271 - 120271

Published: March 1, 2025

Language: Английский

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Constructing Magnetic Carbon Nanofiber Composites with Magnetic-Electric Synergistic Loss Effects for Efficient Microwave Absorption

Composites Part B Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 112551 - 112551

Published: April 1, 2025

Language: Английский

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Fabrication of Fe₃O₄@Polypyrrole@Sulfamic Acid Composite for Efficient Adsorption of Four Cationic Dyes in Aqueous Solution

Applied Organometallic Chemistry, Journal Year: 2025, Volume and Issue: 39(2)

Published: Jan. 14, 2025

ABSTRACT With the continuous development of industry, issue industrial wastewater emissions is increasing. Adsorption, as an effective means possessing features no pollution, high efficiency, and easy operation, has become one methods to treat wastewater. Fe 3 O 4 @polypyrrole@sulfamic acid (Fe @PPy@SA) composite successfully prepare by hydrothermal method, in situ polymerization, modification. Its adsorption behaviors on MG, MB, CV, RhB are investigated UV–Vis, impacts temperature, dye concentration, contact time between dyes efficiency researched. The kinetics isotherms exhibit that these four more accordance with pseudo‐second‐order kinetic model Langmuir isotherm model, diffusion affected through combined effect intraparticle Boyd membrane diffusion, thermodynamic studies display all spontaneous heat absorption behaviors. prepared @PPy@SA efficient adsorbent field applications.

Language: Английский

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Synergistic Microstructure-driven Polarization and Conductive Loss in 3D Chrysanthemum-like MoC@NiCo LDH Composite for Ultra-high Microwave Absorption Performance

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 25, 2025

The development of efficient electromagnetic wave (EMW) absorbing materials relies on rational microstructures and loss mechanisms. This study innovatively proposes a design strategy based micronano structural regulation─heterogeneous interface construction─synergistic optimization fabricates MoC@NiCo layered double hydroxide (LDH) composite material with 3D chrysanthemum-like morphology. petal-like microstructure enhances the multiple reflection scattering effects incident EMWs, while heterogeneous interfaces further stimulate polarization. Meanwhile, density functional theory (DFT) guides regulation polarization conduction synergy for EMW energy attenuation. Experimental results show that material, thickness only 2.4 mm, has minimum (RLmin) -57.9 dB, an maximum effective absorption bandwidth (EABmax) covering 5.4 GHz, encompassing entire C, X, Ku frequency bands. Radar cross-sectional (RCS) testing verifies potential to effectively attenuate EMWs in practical applications. provides theoretical basis method guidance through synergistic conductivity lays foundation meet more stringent application requirements.

Language: Английский

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