Dimensional Design of Cellulose Aerogels with Schottky Contact for Efficient Microwave Absorption

Small, Год журнала: 2025, Номер unknown

Опубликована: Фев. 5, 2025

Cellulose aerogels, as a novel class of carbon-based materials, exhibit immense potential in the field microwave absorption (MWA) due to their biocompatibility, low density, unique porous structure, and tunable architecture. However, development multi-dimensional components with specialized heterogeneous structures, which are based on cellulose remains significant challenge. This 0D/1D/3D structural configuration facilitates electromagnetic properties favorable impedance matching. The Schottky contact at ZnO/Ni interface, particular, induces strong interfacial polarization, design results multiple heterointerfaces. Density functional theory (DFT) calculations reveal that barrier causes band bending, facilitating directed migration electrons interface formation an internal electric field, thus significantly accelerating multipolar relaxation process. As anticipated, CCMC/ZnO@Ni aerogel exhibits minimum reflection loss (RLmin) value -64.0 dB 13.9 GHz thickness 2.0 mm, its effective bandwidth (EAB) reaches 4.9 GHz. work gives valuable guidance inspiration for materials composed dimensional gradient holds great application wave (EMW) attenuation.

Язык: Английский

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Two birds with one stone: Integrating multidimensional heterointerfaces with abundant nitrogen sites for ultrathin broadband microwave absorber

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 161603 - 161603

Опубликована: Март 1, 2025

Язык: Английский

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Micro-screw extrusion 3D printing of multiscale ternary nanocomposite absorbers – Part I: Comprehensive materials characterization and exceptional microwave absorption performance

Materials & Design, Год журнала: 2025, Номер 251, С. 113694 - 113694

Опубликована: Фев. 5, 2025

Язык: Английский

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A robust hierarchical MXene nanocomposite by valid magnetoelectric coordination for efficient electromagnetic response

Materials Today Nano, Год журнала: 2025, Номер 29, С. 100584 - 100584

Опубликована: Фев. 7, 2025

Язык: 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, Год журнала: 2025, Номер unknown

Опубликована: Фев. 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.

Язык: Английский

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In-situ grown heterophase SiO2/SiCnws in PDCs-SiOC(rGO) for enhancing electromagnetic wave absorption performance in C band

Ceramics International, Год журнала: 2025, Номер unknown

Опубликована: Фев. 1, 2025

Язык: Английский

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Anisotropic Bacterial Cellulose/MXene Aerogel Coated with MoS₂ Nanosheets for Electromagnetic Wave Adsorption

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

Опубликована: Март 17, 2025

Язык: Английский

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Moss-like MXene/Ni@CNTs with strong conductive network enables low-frequency electromagnetic wave absorption

Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2025, Номер unknown, С. 136683 - 136683

Опубликована: Март 1, 2025

Язык: Английский

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High-entropy electromagnetic functional materials: From electromagnetic genes to materials design

Materials Science and Engineering R Reports, Год журнала: 2025, Номер 164, С. 100982 - 100982

Опубликована: Март 28, 2025

Язык: Английский

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Preparation of N-doped reduced graphene oxide/cobalt nickelate composites with excellent electromagnetic wave absorption

Diamond and Related Materials, Год журнала: 2025, Номер unknown, С. 112317 - 112317

Опубликована: Апрель 1, 2025

Язык: Английский

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