International Journal of Minerals Metallurgy and Materials, Год журнала: 2024, Номер 31(11), С. 2508 - 2517
Опубликована: Окт. 9, 2024
Язык: Английский
Journal of Material Science and Technology, Год журнала: 2024, Номер 206, С. 211 - 220
Опубликована: Апрель 25, 2024
Язык: Английский
Процитировано
47
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
Процитировано
37
Composites Communications, Год журнала: 2024, Номер 49, С. 101976 - 101976
Опубликована: Июнь 19, 2024
Язык: Английский
Процитировано
22
Nano-Micro Letters, Год журнала: 2024, Номер 17(1)
Опубликована: Окт. 18, 2024
Abstract Developing effective strategies to regulate graphene's conduction loss and polarization has become a key expanding its application in the electromagnetic wave absorption (EMWA) field. Based on unique energy band structure of graphene, regulating bandgap electrical properties by introducing heteroatoms is considered feasible solution. Herein, metal-nitrogen doping reduced graphene oxide (M–N-RGO) was prepared embedding series single metal atoms M–N 4 sites (M = Mn, Fe, Co, Ni, Cu, Zn, Nb, Cd, Sn) RGO using an N-coordination atom-assisted strategy. These composites had adjustable conductivity optimize dielectric impedance matching for efficient EMWA performance. The results showed that minimum reflection ( RL min ) Fe–N-RGO reaches − 74.05 dB (2.0 mm) maximum bandwidth (EAB max 7.05 GHz (1.89 even with low filler loading only 1 wt%. Combined X-ray spectra (XAFS), atomic force microscopy, density functional theory calculation analysis, Fe–N can be used as center increase dipole polarization, interface defect-induced due d-p orbital hybridization structural distortion. Moreover, electron migration within Fe further leads loss, thereby synergistically promoting attenuation. This study demonstrates effectiveness graphene′s properties, which provides important basis investigation mechanism.
Язык: Английский
Процитировано
21
Chemical Engineering Journal, Год журнала: 2024, Номер 501, С. 157556 - 157556
Опубликована: Ноя. 16, 2024
Язык: Английский
Процитировано
21
Nano-Micro Letters, Год журнала: 2025, Номер 17(1)
Опубликована: Фев. 26, 2025
Abstract The previous studies mainly focused on improving microwave absorbing (MA) performances of MA materials. Even so, these designed materials were very difficult to be employed in complex and changing environments owing their single-functionalities. Herein, a combined Prussian blue analogues derived catalytical chemical vapor deposition strategy was proposed produce hierarchical cubic sea urchin-like yolk–shell CoNi@N-doped carbon (NC)-CoNi@carbon nanotubes (CNTs) mixed-dimensional multicomponent nanocomposites (MCNCs), which composed zero-dimensional CoNi nanoparticles, three-dimensional NC nanocubes one-dimensional CNTs. Because good impedance matching attenuation characteristics, the CoNi@NC-CoNi@CNTs MCNCs exhibited excellent performances, achieved minimum reflection loss ( RL min ) −71.70 dB at 2.78 mm Radar Cross section value −53.23 m 2 . More importantly, acquired results demonstrated that presented photothermal, antimicrobial anti-corrosion properties structure, highlighting potential multifunctional applications. It could seen this finding not only generalizable route magnetic NC-CNTs-based MCNCs, but also provided an effective develop improve environmental adaptabilities.
Язык: Английский
Процитировано
12
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 31, 2025
Abstract Aerospace vehicles and electronic devices are often operated in elevated temperature environments, which has led to an increased demand for high‐temperature microwave absorbing materials (MAMs). The absorption properties of MAMs influenced not only by the intrinsic material characteristics but also micro‐, meso‐, macro‐structural configurations composites. This paper reviews recent advancements through a multiscale design approach. Due sensitivity permittivity, tend exhibit reflection behavior at temperatures. Strategies aimed regulating conductivity polarization can enhance impedance matching under these conditions; however, this results unavoidable reduction loss capability. In contrast traditional methodologies, constructed from subwavelength‐scale functional units achieve remarkable anti‐reflection effects discrete unit distribution, thereby significantly optimizing both dielectric capacity matching. Furthermore, equivalent electromagnetic parameters metacomposites intrinsically linked their physical structural attributes. relationship offers novel strategy enhancing performance. It is anticipated that review will provide insightful guidance future explorations into innovative highly efficient MAMs.
Язык: Английский
Процитировано
8
Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160354 - 160354
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
6
Journal of Material Science and Technology, Год журнала: 2025, Номер 229, С. 223 - 234
Опубликована: Фев. 16, 2025
Язык: Английский
Процитировано
4
Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160488 - 160488
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
3