Nano Today, Journal Year: 2025, Volume and Issue: 62, P. 102719 - 102719
Published: March 22, 2025
Language: Английский
Advanced Science, Journal Year: 2024, Volume and Issue: 11(17)
Published: Feb. 25, 2024
MXene-based thermal camouflage materials have gained increasing attention due to their low emissivity, however, the poor anti-oxidation restricts potential applications under complex environments. Various modification methods and strategies, e.g., addition of antioxidant molecules fillers been developed overcome this, but realization long-term, reliable using MXene network (coating) with excellent comprehensive performance remains a great challenge. Here, hybrid comodified hyaluronic acid (HA) hyperbranched polysiloxane (HSi) is designed fabricated. Notably, presence appreciated HA oxidation sheets without altering infrared stealth performance, superior other water-soluble polymers; while HSi can act as efficient cross-linking agents generate strong interactions between molecules. The optimized MXene/HA/HSi composites exhibit mechanical flexibility (folded into crane structure), good water/solvent resistance, long-term stable capability (with emissivity ≈0.29). reliability (≈8 months) various outdoor weathers scalable coating MXene-coated textile enable them disguise IR signal targets in environments, indicating promise achieved material for camouflage, stealth, counter surveillance.
Language: Английский
Citations
54
Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)
Published: June 17, 2024
Abstract Lightweight infrared stealth and absorption-dominant electromagnetic interference (EMI) shielding materials are highly desirable in areas of aerospace, weapons, military wearable electronics. Herein, lightweight high-efficiency dual-functional segregated nanocomposite foams with microcellular structures developed for integrated EMI via the efficient scalable supercritical CO 2 (SC-CO ) foaming combined hydrogen bonding assembly compression molding strategy. The obtained exhibit superior performances benefitting from synergistic effect effective thermal insulation low emissivity, outstanding attributed to synchronous construction structures. Particularly, present a large radiation temperature reduction 70.2 °C at object 100 °C, significantly improved EM wave absorptivity/reflectivity ( A / R ratio 2.15 an ultralow Ti 3 C T x content 1.7 vol%. Moreover, working reliability stability upon dynamic cycles. results demonstrate that have excellent potentials applications
Language: Английский
Citations
36
Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 17(1)
Published: Oct. 16, 2024
Developing advanced stealth devices to cope with radar-infrared (IR) fusion detection and diverse application scenarios is increasingly demanded, which faces significant challenges due conflicting microwave IR cloaking mechanisms functional integration limitations. Here, we propose a multiscale hierarchical structure design, integrating wrinkled MXene shielding layer flexible Fe
Language: Английский
Citations
29
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 12, 2024
Abstract In contemporary times, radar and infrared‐compatible stealth materials have emerged as a pivotal domain of research globally, aimed at augmenting the survivability military assets. However, current candidates generally exhibit subpar compatibility performance in elevated temperature environments due to imbalanced interplay between two spectral bands. this work, meticulously designed sandwich‐structure SiO 2 /C@SiC/SiO composite is proposed cope with challenge. The middle layer C@SiC composites possesses excellent microwave absorption even high temperatures. outer layers aerogels serve not only inhibit infrared radiation intensity, but also reinforce capacity by optimizing impedance matching reducing heat transferred layer. Based on numerical simulation outcomes, thickness each has been optimized attain harmonious balance properties. Ultimately, sandwich structured demonstrate low RL (reflection loss) values (←5 dB) across nearly entire X band (8–12 GHz), alongside minimal surface temperatures hovering ≈44 °C an ambient 200 °C. comprehensive investigation into impact patterns underlying mechanisms offers invaluable insights develop for high‐temperature applications, which can be applied coatings skin Mach number aircraft.
Language: Английский
Citations
20
Advanced Nanocomposites, Journal Year: 2024, Volume and Issue: 1(1), P. 217 - 239
Published: Jan. 1, 2024
As a member of the two-dimensional materials' family, MXene sheets exhibit unique structure and outstanding functional properties, garnering extensive interest in many emerging fields. Among them, derivatives with low emissivity inorganic feature have positioned them as promising candidates for thermal camouflage fire safety. Nevertheless, present literature still lacks comprehensive comparative review focused on both radiation protection safety advanced MXene-based nanocomposite materials. This paper is dedicated to offering an overview recent advances progress empowering nanocomposites context synthesis operational principle, structural characteristics, multifunctional performance emergent applications. Special emphasis placed reviewing camouflaging (infrared stealth), flame-retardant (passive) early warning (active) understand relationships between material compositions, fabricating process, multi-scale structures multiple functionalities. Finally, future challenge direction applications are discussed analyzed.
Language: Английский
Citations
17
Sustainable materials and technologies, Journal Year: 2024, Volume and Issue: 40, P. e00949 - e00949
Published: April 23, 2024
Language: Английский
Citations
9
Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: 63(25), P. 11030 - 11043
Published: June 11, 2024
Polymer-based shielding materials have garnered attention due to their lightweightness, ease of fabrication, and tailorable performance. However, they tend creep deform when the are exposed external heat, which may cause a catastrophic disaster mechanical failure. In this study, hybrid loading graphite (Gt) boron nitride (BN) fillers was used improve thermal dissipation, neutron shielding, tribological properties ultrahigh molecular weight polyethylene (UHMWPE), demonstrate potential applications in nuclear sectors among others. The results revealed that conductivity UHMWPE/BN 30 wt %/Gt 40 % composite (i.e., BN30Gt40) reached as high 8.43 W/mK, 295% higher than %, 201% UHMWPE/Gt 1700% pure UHMWPE, respectively. Simulation analysis using Geant4 suggested UHMWPE/BN/Gt composites exhibited excellent neutron-shielding performance presence abundant hydrogen elements. addition, demonstrated friction wear combined effects constructing transfer film on surface pair timely removal frictional heat generated at sliding interface.
Language: Английский
Citations
6
Nano Letters, Journal Year: 2024, Volume and Issue: 24(26), P. 8098 - 8106
Published: June 24, 2024
The development of multifunctional MXene-based fabrics for smart textiles and portable devices has garnered significant attention. However, very limited studies have focused on their structure design associated mechanical properties. Here, the supertough MXene fiber felts composed MXene/sodium alginate (SA) fibers were fabricated. fracture strength bending stiffness can be up to 97.8 MPa 1.04 N mm
Language: Английский
Citations
6
Nanoscale, Journal Year: 2024, Volume and Issue: 16(26), P. 12586 - 12598
Published: Jan. 1, 2024
In situ monitoring of H2O2 in cellular microenvironments plays a critical role the early diagnosis and pretreatment cancer, but is limited by lack efficient low-cost strategies for large-scale preparation real-time biosensors. Herein, universal strategy MXene-based composite inks combined with scalable screen-printing process validated manufacturing electrochemical biosensors detection secreted from live cells. Compositing biocompatible carboxymethyl cellulose (CMCS) excellent conductive MXene, water-based ink electrode (MXene/CMCS) tunable viscosity efficiently printed desirable printing accuracy. Subsequently, MXene/CMCS@HRP biosensor exhibits stable performance through HRP nanoflower modification, showing rapid electron transport high electrocatalytic capacity, demonstrating low limit (0.29 μM) wide linear range (0.5 μM-3 mM), superior sensitivity (56.45 μA mM-1 cm-2), long-term stability anti-interference ability. Moreover, this effectively employed HeLa cells, revealing good biocompatibility outstanding biosensing capability. This proposed not only extends possibility biomedical devices, also provides promising approach treatment cancer.
Language: Английский
Citations
5
Advanced Science, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 24, 2024
Abstract Detection and anti‐detection with multispectral camouflage are of pivotal importance, while suffer from significant challenges due to the inherent contradiction between detection conflict microwave infrared (IR) stealth mechanisms. Here, a strategy is proposed asymmetrically control transmitted wavefront under radar‐IR bi‐stealth scheme using composite metasurface. It engineered composed layer (IRSL), absorbing (MAL), asymmetric transmissive structure (AMTS) polarization conversion top bottom. Therein, IR emissivity, reflectivity, transmissivity simultaneously modulated by elaborately designing filling ratio ITO square patches on IRSL, which ensures both efficient transmission camouflage. Furthermore, full‐polarized backward achieved MAL transmitting microwaves x ‐ y polarization, respectively, forward controlled precise curvature phase compensation AMTS according ray‐tracing technology. For verification, proof‐of‐concept metadevice numerically experimentally characterized. Both results coincide well, demonstrating spiral detective manipulation ‐polarized wave excitation effective reduction radar cross section within 8–18 GHz low emissivity (<0.3) for detection. This provides new paradigm integration
Language: Английский
Citations
5