Graphene-like MXene-based microwave absorbers and shields: Latest progress and perspectives

Materials Today Physics, Год журнала: 2024, Номер 43, С. 101400 - 101400

Опубликована: Март 26, 2024

Язык: Английский

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Highly oriented MXene/polyvinyl alcohol films prepared by scalable layer-by-layer blade coating for efficient electromagnetic interference shielding and infrared stealth

Nano Research, Год журнала: 2024, Номер 17(6), С. 5651 - 5660

Опубликована: Фев. 9, 2024

Язык: Английский

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Hollow core-shell structure Fe3O4@Polypyrrole composites for enhanced electromagnetic wave absorption

Composites Science and Technology, Год журнала: 2024, Номер unknown, С. 110917 - 110917

Опубликована: Окт. 1, 2024

Язык: Английский

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Wearable EMI Shielding Composite Films with Integrated Optimization of Electrical Safety, Biosafety and Thermal Safety

Advanced Science, Год журнала: 2024, Номер 11(21)

Опубликована: Апрель 19, 2024

Abstract Biomaterial‐based flexible electromagnetic interference (EMI) shielding composite films are desirable in many applications of wearable electronic devices. However, much research focuses on improving the EMI performance materials, while optimizing comprehensive safety materials has been neglected. Herein, cellulose nanofiber@boron nitride nanosheet/silver nanowire/bacterial (CNF@BNNS/AgNW/BC) with sandwich structure fabricated via a simple sequential vacuum filtration method. For first time, electrical safety, biosafety, and thermal optimized integratedly. Since both sides contain CNF BC insulation layers, CNF@BNNS/AgNW/BC exhibit excellent safety. Furthermore, benefiting from AgNW conductive networks middle layer, effectiveness 49.95 dB ultra‐fast response Joule heating performance. More importantly, antibacterial property ensures biosafety films. Meanwhile, CNF@BNNS layers synergistically enhance conductivity film, reaching high value 8.85 W m ‒1 K , which significantly enhances its when used miniaturized device. This work offers new ideas for fabricating biomaterial‐based

Язык: Английский

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Construction of PI-MXene-MWCNT nanocomposite film integrating conductive gradient with sandwich structure for high-efficiency electromagnetic interference shielding in extreme environments

Carbon, Год журнала: 2024, Номер 228, С. 119328 - 119328

Опубликована: Июнь 12, 2024

Язык: Английский

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Ultrafine Aramid Nanofiber-Assisted Large-Area Dense Stacking of MXene Films for Electromagnetic Interference Shielding and Multisource Thermal Conversion

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(29), С. 38620 - 38630

Опубликована: Июль 10, 2024

Polymers are often used as adhesives to improve the mechanical properties of flexible electromagnetic interference (EMI) shielding layered films, but introduction these insulating inevitably reduces EMI performance. Herein, ultrafine aramid nanofibers (UANF) with a diameter only 2.44 nm were binder effectively infiltrate and minimize gaps in MXene for balancing properties. Combining evaporation-induced scalable assembly assisted by blade coating, large-scale MXene/UANF films highly aligned compact stacking successfully fabricated. Compared conventional ANF larger 7.05 nm, UANF-reinforced film exhibits "brick-mortar" structure higher orientation compacter nanosheets, thus showing properties, electrical conductivity, By optimizing content, can achieve optimal tensile strength 156.9 MPa, toughness 2.9 MJ m

Язык: Английский

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Compressible thermoplastic polyurethane/silver nanorod foams for absorption dominant electromagnetic interference shielding

Journal of Material Science and Technology, Год журнала: 2024, Номер 197, С. 9 - 16

Опубликована: Апрель 23, 2024

Язык: Английский

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Lightweight and robust cellulose/MXene/polyurethane composite aerogels as personal protective wearable devices for electromagnetic interference shielding

International Journal of Biological Macromolecules, Год журнала: 2024, Номер 271, С. 132435 - 132435

Опубликована: Май 16, 2024

Язык: Английский

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Breathable Dual‐Mode Leather‐Like Nanotextile for Efficient Daytime Radiative Cooling and Heating

Advanced Materials, Год журнала: 2024, Номер 36(33)

Опубликована: Июнь 19, 2024

Incorporating passive radiative cooling and heating into personal thermal management has attracted tremendous attention. However, most current materials are usually monofunctional with a narrow temperature regulation range, lack breathability, softness, stretchability, resulting in poor wearer experience limited application scenarios. Herein, breathable dual-mode leather-like nanotextile (LNT) asymmetrical wrinkle photonic microstructures Janus wettability for highly efficient is developed via one-step electrospinning technique. The LNT synthesized by self-bonding hydrophilic layer welding fiber networks onto hydrophobic photothermal layer, constructing bilayer structures that offer remarkable optical properties, wetting gradient, unique textures. resultant exhibits capacity (22.0 °C) (22.1 under sunlight, expanding the zone (28.3 °C wider than typical textiles). Additionally, it possesses favorable sweat-wicking capability. Actual wearing tests demonstrate can provide comfortable microenvironment human body (1.6-8.0 cooler 1.0-7.1 warmer textiles) changing weather conditions. Such wearable presents great potential comfort opens up new possibilities all-weather smart clothing.

Язык: Английский

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Centrifugal Inertia‐Induced Directional Alignment of AgNW Network for Preparing Transparent Electromagnetic Interference Shielding Films with Joule Heating Ability

Advanced Science, Год журнала: 2024, Номер 11(38)

Опубликована: Авг. 8, 2024

Abstract Transparent electromagnetic interference (EMI) shielding is highly desired in specific visual scenes, but the challenge remains balancing their EMI effectiveness (SE) and optical transmittance. Herein, this study proposed a directionally aligned silver nanowire (AgNW) network construction strategy to address requirement of high SE satisfactory light transmittance using rotation spraying technique. The orientation distribution AgNW induced by centrifugal inertia force generated high‐speed rotating roller, which overcomes issue contact resistance random networks achieves conductivity even at low density. Thus, obtained transparent conductive film achieved 72.9% combined with sheet 4.5 Ω sq −1 desirable value 35.2 dB X band, 38.9 K‐band, highest 43.4 20.4 GHz. Simultaneously, excellent endowed outstanding Joule heating performance defogging/deicing ability, ensuring transparency windows when waves. Hence, research presents effective for constructing an network, offering promising solution enhancing optical‐electronic devices.

Язык: Английский

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