Advantageous synergistic strategy to construct Ni@C/PC composites for efficient electromagnetic wave absorption

Carbon, Год журнала: 2025, Номер unknown, С. 120010 - 120010

Опубликована: Янв. 1, 2025

Язык: Английский

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Synergistic Enhancement of Defect-Induced Polarization and Built-In Electric Field Effect in Carbon Hybrids towards Efficient Electromagnetic Wave Absorption

Carbon, Год журнала: 2025, Номер unknown, С. 120037 - 120037

Опубликована: Янв. 1, 2025

Язык: Английский

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MoS2-based Composites for Microwave Absorption Mechanism-Oriented Structural Optimization and Design Perspectives

Carbon, Год журнала: 2025, Номер unknown, С. 120233 - 120233

Опубликована: Март 1, 2025

Язык: Английский

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0D/1D Hollow Heterogeneous Structure to Induce Self-assembly of CNTs for Optimized Self-anticorrosion and Electromagnetic Wave Absorption Performance

Carbon, Год журнала: 2025, Номер unknown, С. 120310 - 120310

Опубликована: Апрель 1, 2025

Язык: Английский

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Mineral-based electromagnetic wave absorbers and shields: Latest progress and perspectives

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 179884 - 179884

Опубликована: Март 1, 2025

Язык: Английский

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Antimony‐Hybridization Engineering in p‐n Heterojunctions for Optimized Electromagnetic Wave Absorption

Small, Год журнала: 2025, Номер unknown

Опубликована: Май 8, 2025

Abstract The Sb‐hybridization strategy enables the precise construction of p‐n heterojunctions, which significantly enhances electromagnetic wave (EMW) absorption performance by optimizing interface polarization. In this study, an innovative in situ ion‐exchange method is developed to implement Sb hybridization, establishing built‐in electric fields within CoS 2 /Sb S 3 @CNFs that amplify polarization relaxation loss. This structural design synergistically combines a carbon‐skeleton‐induced conductive network with magnetic loss mechanisms , ultimately yielding exceptional EMW absorber. optimized composite demonstrates remarkable attenuation capabilities, achieving minimum reflection (RL min ) −57.53 dB at mm and effective bandwidth (EAB max 7.28 GHz (covering X‐band (8–12 GHz) Ku‐band (12–18 GHz)). study not only provides novel for designing advanced absorbers but also highlights significance heterojunction engineering functional composites.

Язык: Английский

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Preparation of ZnAl layered double hydroxides supported by silica for the treatment of Cr(VI) and Cu(II) in aqueous solution

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Янв. 20, 2025

A novel adsorbent ZnAl–LDHs/SiO2 (ZA/SiO2) was prepared by blending urea mixture of ZnSO4 and Al2(SO4)3 while using SiO2 as a support form. The adsorption properties ZA/SiO2 for the removal toxic metal ions (Cu(II) Cr(VI)) from water were evaluated. By batch experiment method to investigate Cu(II) Cr(VI) solution treatment effect. sorption kinetics curves on L-shaped. What's more, solid concentration effect found in process kinetics. Langmuir Freundlich isotherm models used analyze data. results showed that conforms models. However, capacity compounds is greatly improved. 158 mg·g−1 176 mg·g−1, which 3.6 1.8 times ZnAl-LDHs (ZA), respectively. Density functional theory (DFT) utilized analysis intrinsic mechanism specific pathways. primary removing mainly included intercalation Cr2O72− exchange between OH−, excluding Cr(OH)3 precipitation. Regarding eliminating water, it involves isomorphic substitution predominant process, except formation Cu(OH)2 precipitates.

Язык: Английский

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Hierarchical Nanoengineered NiCo LDH@Fe2O3 Heterostructures for Optimized Electrochemical Capacitive Performance

Materials Chemistry and Physics, Год журнала: 2025, Номер unknown, С. 130822 - 130822

Опубликована: Март 1, 2025

Язык: Английский

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Rationally Designed Ppy-Coated Fe2O3 Nanoneedles Anchored on N-C Nanoflakes as a High-Performance Anode for Aqueous Supercapacitors

Crystals, Год журнала: 2025, Номер 15(4), С. 346 - 346

Опубликована: Апрель 7, 2025

Flexible supercapacitors have emerged as pivotal energy storage components in wearable smart electronic systems, owing to their exceptional electrochemical performance. However, the widespread application of flexible devices is significantly hindered by developmental bottleneck high-performance anode materials. In this study, a novel electrode composed surface-modified Fe2O3 nanoneedles uniformly coated with polypyrrole (PPy) film and anchored on Co-MOF-derived N-C nanoflake arrays (PPy/Fe2O3/N-C) designed. This composite electrode, grown situ carbon cloth (CC), demonstrated outstanding specific capacity, rate performance, mechanical flexibility, attributed its unique hierarchical 3D arrayed structure protective PPy layer. The fabricated PPy/Fe2O3/N-C@CC (P-FONC) exhibited an excellent capacitance 356.6 mF cm−2 (143 F g−1) at current density 2 mA cm−2. increased 20 cm−2, material preserved 278 (112 g−1). Furthermore, assembled quasi-solid-state Mn/Fe asymmetric supercapacitor, configured P-FONC negative MnO2/N-C@CC positive robust chemical stability notable flexibility. study sheds fresh light creation three-dimensional materials for highly efficient, systems.

Язык: Английский

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Component-Based Modulation Engineering to Improve Magnetoelectric Coupling for Self-Anticorrosion Broadband Absorption

Carbon, Год журнала: 2025, Номер unknown, С. 120325 - 120325

Опубликована: Апрель 1, 2025

Язык: Английский

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