Carbonization Tuned Core‐Shell Fe3O4@C Nanostructures with Enhanced Electromagnetic Wave Absorption

Advanced Materials Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Март 12, 2025

Abstract With the advent of high‐power electronic devices, communication satellites, and military radar systems, electromagnetic (EM) waves have caused significant pollution. In this work, hollow Fe 3 O 4 @C (H‐FO@C) composites are synthesized by employing an in situ polymerization carbonization treatment. Effects temperature on wave absorption core‐shell structured H‐FO@C symmetrically analyzed, impedance matching attenuation ability improved significantly controlling temperature. The reflection loss (RL) effective bandwidth (EAB) carbonized at 650 °C to −51.85 dB 5.36 GHz (thickness 2.1 mm), respectively. When thickness increases from 2.4 mm, EAB reaches 6.24 GHz. According CST Studio Suit, cross section (RCS) reduction value can be 24.26 m 2 for composites. Both experiment simulation results confirm that possess excellent EWA performance. This work provides a new way advancing materials.

Язык: Английский

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Recent Advances in the Tunable Optoelectromagnetic Properties of PEDOTs

Molecules, Год журнала: 2025, Номер 30(1), С. 179 - 179

Опубликована: Янв. 4, 2025

Conducting polymers represent a crucial class of functional materials with widespread applications in diverse fields. Among these, poly(3,4-ethylenedioxythiophene) (PEDOT) and its derivatives have garnered significant attention due to their distinctive optical, electronic, magnetic properties, as well exceptional tunability. These properties often exhibit intricate interdependencies, manifesting synergistic, concomitant, or antagonistic relationships. In optics, PEDOTs are renowned for high transparency unique photoelectric responses. From an electrical perspective, they display conductivity, thermoelectric, piezoelectric performance, along notable electrochemical activity stability, enabling wide array electronic applications. terms demonstrate outstanding electromagnetic shielding efficiency microwave absorption capabilities. Moreover, these can be precisely tailored through molecular structure modifications, chemical doping, composite formation suit various application requirements. This review systematically examines the mechanisms underlying optoelectromagnetic PEDOTs, highlights tunability, outlines prospective research directions. By providing critical theoretical insights technical references, this aims advance landscape PEDOTs.

Язык: Английский

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The numerical manifold method for piezoelectric materials with hole flaws under electro-mechanical loadings

Engineering Analysis with Boundary Elements, Год журнала: 2025, Номер 173, С. 106149 - 106149

Опубликована: Фев. 11, 2025

Язык: Английский

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Highly polarized piezoelectret embedded versatile haptic devices for immersive human-robot interactions

Nano Energy, Год журнала: 2025, Номер unknown, С. 110775 - 110775

Опубликована: Фев. 1, 2025

Язык: Английский

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Thin and Flexible Breeze-Sense Generators for Non-Contact Haptic Feedback in Virtual Reality

Nano-Micro Letters, Год журнала: 2025, Номер 17(1)

Опубликована: Фев. 13, 2025

Abstract In the realm of virtual reality (VR), haptic feedback is integral to enhance immersive experience; yet, existing wearable devices predominantly rely on skin contact feedback, lacking options for compact and non-contact breeze-sense feedback. Herein, we propose a working model piezoelectret actuator providing gentle safe breeze sensation. This easy-fabricated flexible generator with thickness around 1 mm generates air flow pressure up ~ 163 Pa, which significantly sensed by human skin. typical demonstration, generators array showcases its versatility employing multiple coded modes information transmitting. The thin thinness good flexibility facilitate seamless integration VR setups, arrays empower volunteers precisely perceive continuous sudden senses in environments. work expected inspire developing new that play pivotal roles human–machine interfaces applications.

Язык: Английский

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Controlled ion immigration in MXene-PVA composites for self-powered pressure sensor

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 161039 - 161039

Опубликована: Фев. 1, 2025

Язык: Английский

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Force-Electric Biomaterials and Devices for Regenerative Medicine

Biomaterials, Год журнала: 2025, Номер unknown, С. 123288 - 123288

Опубликована: Март 1, 2025

Язык: Английский

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Wireless programmable patterns of electro-hydraulic haptic electronic skins able to create surface morphology

Chemical Engineering Journal, Год журнала: 2024, Номер 500, С. 156612 - 156612

Опубликована: Окт. 11, 2024

Язык: Английский

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3D printing enhanced piezoelectricity of MXene/P(VDF-TrFE) composites for energy harvesting and force sensing

Composites Science and Technology, Год журнала: 2024, Номер 258, С. 110881 - 110881

Опубликована: Сен. 27, 2024

Язык: Английский

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Self-powered highly stretchable ferroelectret nanogenerator towards intelligent sports

Nano Trends, Год журнала: 2024, Номер unknown, С. 100053 - 100053

Опубликована: Сен. 1, 2024

Язык: Английский

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