Materials Today Physics, Год журнала: 2023, Номер 31, С. 100962 - 100962
Опубликована: Янв. 7, 2023
Язык: Английский
Materials Today Physics, Год журнала: 2023, Номер 31, С. 100962 - 100962
Опубликована: Янв. 7, 2023
Язык: Английский
Nano-Micro Letters, Год журнала: 2023, Номер 16(1)
Опубликована: Ноя. 23, 2023
The utilization of eco-friendly, lightweight, high-efficiency and high-absorbing electromagnetic interference (EMI) shielding composites is imperative in light the worldwide promotion sustainable manufacturing. In this work, magnetic poly (butyleneadipate-co-terephthalate) (PBAT) microspheres were firstly synthesized via phase separation method, then PBAT composite foams with layered structure was constructed through supercritical carbon dioxide foaming scraping techniques. merits integrating ferroferric oxide-loaded multi-walled nanotubes (Fe
Язык: Английский
Процитировано
176Nano-Micro Letters, Год журнала: 2022, Номер 14(1)
Опубликована: Ноя. 15, 2022
High‑efficiency electromagnetic interference (EMI) shielding materials are of great importance for electronic equipment reliability, information security and human health. In this work, bidirectional aligned Ti3C2Tx@Fe3O4/CNF aerogels (BTFCA) were firstly assembled by freezing freeze-drying technique, the BTFCA/epoxy nanocomposites with long-range lamellar structures then prepared vacuum-assisted impregnation epoxy resins. Benefitting from successful construction three-dimensional conductive networks synergistic effect, when mass fraction Ti3C2Tx Fe3O4 2.96 1.48 wt%, show outstanding EMI effectiveness 79 dB, about 10 times that blended Ti3C2Tx@Fe3O4/epoxy (8 dB) same loadings Fe3O4. Meantime, corresponding also present excellent thermal stability (Theat-resistance index 198.7 °C) mechanical properties (storage modulus 9902.1 MPa, Young's 4.51 GPa hardness 0.34 GPa). Our fabricated would greatly expand applications MXene resins in fields security, aerospace weapon manufacturing, etc.
Язык: Английский
Процитировано
173Nano Research, Год журнала: 2023, Номер 16(5), С. 7820 - 7828
Опубликована: Март 15, 2023
Язык: Английский
Процитировано
168Advanced Functional Materials, Год журнала: 2023, Номер 33(18)
Опубликована: Фев. 8, 2023
Abstract Multifunctional films with integrated temperature adjustment, electromagnetic interference (EMI) shielding, and thermal camouflage are remarkably desirable for wearable products. Herein, a novel Janus‐type multifunctional ultra‐flexible film is fabricated via continuous electrospinning followed by spraying. Interestingly, in the polyvinyl alcohol (PVA)/phase change capsules (PCC) layer (P 1 ), PCC strung on PVA fibers to form stable “candied haws stick” structure that obviates slipping or falling off. The sufficient melting enthalpy (141.4 J g −1 ) guarantees its thermoregulation capability. Simultaneously, high mid‐IR emissivity (90.15%) endows radiative cooling properties (reducing 10.13 °C). Mechanical strength significantly improved superimposing polylactic acid (PLA) 2 surface. By spraying thin MXene PLA surface of P film, obtained (MXene/P MP endowed satisfactory low‐voltage heating, photo‐thermal superior performance, achieving all‐season comfort. Impressively, flexible achieves enhanced EMI shielding effect from 50.3 87.8 dB through simple origami process, which simplifies manufacturing process high‐performance materials. In brief, an attractive candidate future products personalized management anti‐electromagnetic radiation.
Язык: Английский
Процитировано
151Nano-Micro Letters, Год журнала: 2023, Номер 15(1)
Опубликована: Май 28, 2023
Although multifunctional aerogels are expected to be used in applications such as portable electronic devices, it is still a great challenge confer multifunctionality while maintaining their inherent microstructure. Herein, simple method proposed prepare NiCo/C with excellent electromagnetic wave absorption properties, superhydrophobicity, and self-cleaning by water-induced NiCo-MOF self-assembly. Specifically, the impedance matching of three-dimensional (3D) structure interfacial polarization provided CoNi/C well defect-induced dipole primary contributors broadband absorption. As result, prepared have width 6.22 GHz at 1.9 mm. Due presence hydrophobic functional groups, improve stability humid environments obtain hydrophobicity large contact angles > 140°. This aerogel has promising absorption, resistance water or environments.
Язык: Английский
Процитировано
146Small, Год журнала: 2023, Номер 19(41)
Опубликована: Июнь 8, 2023
Transition metal carbide (Ti3 C2 Tx MXene), with a large specific surface area and abundant functional groups, is promising candidate in the family of electromagnetic wave (EMW) absorption. However, high conductivity MXene limits its EMW absorption ability, so it remains challenge to obtain outstanding attenuation ability pure MXene. Herein, by integrating HF etching, KOH shearing, high-temperature molten salt strategies, layered (L-MXene), network-like nanoribbons (N-MXene NRs), porous monolayer (P-MXene ML), layer L) are rationally constructed favorable microstructures states for HF, KOH, KCl/LiCl used functionalize tune microstructure state (F- , OH- Cl- terminals), thereby improving capacity MXene-based nanostructures. Impressively, unique structure, proper electrical conductivity, area, defects, nanostructures achieve good impedance matching, dipole polarization, conduction loss, thus inheriting excellent performance. Consequently, L-MXene, N-MXene NRs, P-MXene ML, L enable reflection loss (RL ) value -43.14, -63.01, -60.45, -56.50 dB matching thickness 0.95, 1.51, 3.83, 4.65 mm, respectively.
Язык: Английский
Процитировано
142Journal of Material Science and Technology, Год журнала: 2023, Номер 175, С. 115 - 124
Опубликована: Сен. 11, 2023
Язык: Английский
Процитировано
137Science Bulletin, Год журнала: 2023, Номер 68(17), С. 1938 - 1953
Опубликована: Авг. 1, 2023
Язык: Английский
Процитировано
135Journal of Material Science and Technology, Год журнала: 2023, Номер 148, С. 150 - 170
Опубликована: Янв. 6, 2023
Язык: Английский
Процитировано
129Nano-Micro Letters, Год журнала: 2023, Номер 15(1)
Опубликована: Авг. 25, 2023
The development of wearable multifunctional electromagnetic protective fabrics with multifunctional, low cost, and high efficiency remains a challenge. Here, inspired by the unique flower branch shape "Thunberg's meadowsweet" in nature, nanofibrous composite membrane hierarchical structure was constructed. Integrating sophisticated 0D@2D@1D structures multiple heterointerfaces can fully unleash application potential membrane. targeted induction method used to precisely regulate formation site morphology metal-organic framework precursor, intelligently integrate heterostructures enhance dielectric polarization, which improves impedance matching loss mechanisms wave absorbing materials. Due synergistic enhancement electrospinning-derived carbon nanofiber "stems", MOF-derived nanosheet "petals" transition metal selenide nano-particle "stamens", CoxSey/NiSe@CNSs@CNFs (CNCC) obtains minimum reflection value (RLmin) -68.40 dB at 2.6 mm maximum effective absorption bandwidth (EAB) 8.88 GHz thin thickness 2.0 filling amount only 5 wt%. In addition, multi-component heterostructure endow fibrous excellent flexibility, water resistance, thermal management, other properties. This work provides perspectives for precise design rational fabrics.
Язык: Английский
Процитировано
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