Self-assembly of one-dimensional cobalt-carbon to turn dielectric properties for electromagnetic attenuation

Carbon, Год журнала: 2025, Номер unknown, С. 120103 - 120103

Опубликована: Фев. 1, 2025

Язык: Английский

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Hierarchical core-shell transitional metal chalcogenides Co9S8/ CoSe2@C nanocube embedded into porous carbon for tunable and efficient microwave absorption

Carbon, Год журнала: 2024, Номер 232, С. 119824 - 119824

Опубликована: Ноя. 12, 2024

Язык: Английский

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A Pomegranate‐Like Nanolayer Featuring A Core‐Shell Architectural Design for Thermal‐Mechanical‐Electromagnetic Responses and Sensor

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Дек. 12, 2024

Abstract Multifunctional electromagnetic wave (EMW) absorbing materials are attracting attention because of their potential applications in medical, livelihood, and military. In this study, a pomegranate‐like nanolayer featuring core‐shell architecture (PNCS) is prepared using confinement strategy. Introducing metal atoms into unique design (M‐PNCS, M = Mn, Fe, Co, Ni, Cu) effectively tuned the response improved functions. The Mn‐PNCS composite exhibited highest absorption. Its reflection loss ( RL ) reached −62.39 dB with an effective absorption bandwidth (EAB) at 1.8 mm 6.0 GHz. As charge transport capacity increases, its can be transformed shielding, green shielding index up to 3.54. On basis, used fabricate multifunctional film new strain sensor. This integrated absorption, thermal insulation, hydrophobicity, flexibility, sensing, thus showing for use wearable protective clothing. addition, sensors simulation achieved sensing through coupling effect between patterns. These findings demonstrate that excellent material technical fields EMW devices.

Язык: Английский

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Pyramid-like magnetic carbon composites device toward tunable and adaptive radar-visible compatible properties

Carbon, Год журнала: 2024, Номер 231, С. 119737 - 119737

Опубликована: Окт. 21, 2024

Язык: Английский

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Recent advances of MXene-based nanocomposites towards microwave absorption: a review

Advanced Composites and Hybrid Materials, Год журнала: 2025, Номер 8(1)

Опубликована: Янв. 21, 2025

Язык: Английский

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Construction of 0D/2D heterojunction in 3D MXene/GQDs hybrid aerogels for enhanced broad electromagnetic wave absorption

Journal of Alloys and Compounds, Год журнала: 2025, Номер 1016, С. 179021 - 179021

Опубликована: Фев. 1, 2025

Язык: Английский

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Flexible multifunctional MXene/polyimide films with Janus structure for superior electromagnetic interference shielding

Advanced Composites and Hybrid Materials, Год журнала: 2024, Номер 8(1)

Опубликована: Дек. 6, 2024

Язык: Английский

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Recent progress in MXene fiber: Materials, fabrication techniques, and potential applications

Chemical Engineering Journal, Год журнала: 2024, Номер 503, С. 158320 - 158320

Опубликована: Дек. 9, 2024

Язык: Английский

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A sandwiched SiBCN@CF/CNTs film with electrically conductive network for electromagnetic interference shielding

Applied Surface Science, Год журнала: 2025, Номер unknown, С. 162294 - 162294

Опубликована: Янв. 1, 2025

Язык: Английский

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Electronic Structure Design in High-Entropy Oxides: Enabling Frequency-Dependent Dielectric Behavior for Advanced Applications

ACS Applied Electronic Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 8, 2025

This study investigates the design of an electronic structure in a defect-engineered (MgCoNiCuZn)O high-entropy oxide (HEO), demonstrating distinct frequency-dependent dielectric behavior enabled by complex microstructure. Detailed structural analysis reveals phase transformation from multiphase mixture at lower calcination temperatures to stable, single-phase rock-salt 1000 °C. Scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) mapping show unique elemental domain segregation, with p-type (Cu, Ni, Co) n-type (Zn, Mg) semiconductor domains forming multiple internal interfaces. These interfaces facilitate two key polarization mechanisms: (1) interfacial (Maxwell–Wagner–Sillars) within grains, driven charge accumulation boundaries, (2) space across grain boundaries. Dielectric measurements reveal strong frequency dependence, high properties low frequencies suitable for charging applications reduced values frequencies, beneficial discharging processes such as regenerative braking electric vehicles. work demonstrates potential HEOs tailor advanced applications, including tunable radio (RF) devices, wireless communication, adaptive energy storage systems, vehicle technologies.

Язык: Английский

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