Controllable fiberization engineering of cobalt anchored mesoporous hollow carbon spheres for positive feedback to electromagnetic wave absorption

Carbon, Год журнала: 2024, Номер 228, С. 119339 - 119339

Опубликована: Июнь 13, 2024

Язык: Английский

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Porous Structure Fibers Based on Multi‐Element Heterogeneous Components for Optimized Electromagnetic Wave Absorption and Self‐Anticorrosion Performance

Small, Год журнала: 2024, Номер 20(47)

Опубликована: Авг. 11, 2024

Abstract The excellent performance of electromagnetic wave absorbers primarily depends on the coordination among components and rational design structure. In this study, a series porous fibers with carbon nanotubes uniformly distributed in shape pine leaves are prepared through electrospinning technique, one‐pot hydrothermal synthesis, high‐temperature catalysis method. impedance matching nanofibers structure is optimized by incorporating melamine into spinning solution, as it undergoes gas decomposition during calcination. Moreover, electronic can be modulated controlling NH 4 F content synthesis process. Ultimately, Ni/Co/CrN/CNTs‐CF specimen (P3C NiCrN12) exhibited superior performance, while achieving minimum reflection loss (RL min ) −56.18 dB at thickness 2.2 mm maximum absorption bandwidth (EAB max 5.76 GHz 2.1 mm. This study presents an innovative approach to fabricating lightweight, thin materials exceptional properties wide optimizing three key factors influencing performance.

Язык: Английский

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Multifunctional electromagnetic wave absorbing carbon fiber/Ti3C2TX MXene fabric with ultra-wide absorption band

Carbon, Год журнала: 2024, Номер 230, С. 119594 - 119594

Опубликована: Авг. 31, 2024

Язык: Английский

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Enhancing Defect-Induced Dipole Polarization Strategy of SiC@MoO3 Nanocomposite Towards Electromagnetic Wave Absorption

Nano-Micro Letters, Год журнала: 2024, Номер 16(1)

Опубликована: Авг. 16, 2024

Defect engineering in transition metal oxides semiconductors (TMOs) is attracting considerable interest due to its potential enhance conductivity by intentionally introducing defects that modulate the electronic structures of materials. However, achieving a comprehensive understanding relationship between micro-structures and electromagnetic wave absorption capabilities remains elusive, posing substantial challenge advancement TMOs absorbers. The current research describes process for deposition MoO

Язык: Английский

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Preparation of cellulose derived carbon/reduced graphene oxide composite aerogels for broadband and efficient microwave dissipation

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 675, С. 401 - 410

Опубликована: Июль 5, 2024

Язык: Английский

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Hierarchical Engineering on Built‐In Electric Field of Bimetallic Zeolitic Imidazolate Derivatives Towards Amplified Dielectric Loss

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 7, 2024

Abstract Construction of built‐in electric field (BIEF) in nanohybrids has been demonstrated as an efficacious strategy to boost the dielectric loss by facilitating oriented transfer and transition charges, thus optimizing electromagnetic wave absorption property. However, specific influence BIEF on interface polarization needs explore thoroughly strength should be further augmented. Herein, several systems incorporated Mott–Schottky heterojunctions hollow structures are designed constructed, where bimetallic zeolitic imidazolate framework employed derive Cu‐ZnO heterojunctions, hierarchical enriched introducing structure reduced graphene oxide. The well‐established “double” verified theoretical calculation engineering can regulate conductivity, enhance relaxation effectively. Especially, there always coexisted both enhanced charge separation reversed distribution this BIEF, boosting polarization. Attributing synergy well‐matched impedance amplified loss, obtained hybrids exhibited superior (reflection −46.29 dB ultra‐wide effective bandwidth 7.6 GHz at only 1.6 mm). This work proves innovative model for dissecting mechanisms pioneers a novel advanced absorbers through enhancing BIEF.

Язык: Английский

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Enhanced electromagnetic wave absorption of bacterial cellulose/ reduced graphene oxide aerogel by eco-friendly in-situ construction

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 678, С. 648 - 655

Опубликована: Авг. 26, 2024

Язык: Английский

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Zeolite imidazolate framework derived efficient absorbers: from morphology modulation to component regulation

Journal of Alloys and Compounds, Год журнала: 2024, Номер 1010, С. 177092 - 177092

Опубликована: Окт. 16, 2024

Язык: Английский

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Transition metal carbides towards electromagnetic wave absorption application: State of the art and perspectives

Composites Communications, Год журнала: 2024, Номер 48, С. 101954 - 101954

Опубликована: Май 28, 2024

Язык: Английский

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

Carbon, Год журнала: 2024, Номер 230, С. 119613 - 119613

Опубликована: Сен. 7, 2024

Язык: Английский

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