Nano Energy, Journal Year: 2024, Volume and Issue: unknown, P. 110361 - 110361
Published: Oct. 1, 2024
Language: Английский
Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 15(1)
Published: Oct. 13, 2023
Firefighting protective clothing is a crucial equipment for firefighters to minimize skin burn and ensure safety firefighting operation rescue mission. A recent increasing concern develop self-powered fire warning materials that can be incorporated into the achieve active protection before catches on fireground. However, it still challenge facilely design manufacture thermoelectric (TE) textile (TET)-based electronics with dynamic surface conformability breathability. Here, we an alternate coaxial wet-spinning strategy continuously produce alternating p/n-type TE aerogel fibers involving n-type Ti3C2Tx MXene p-type MXene/SWCNT-COOH as core materials, tough aramid nanofiber shell, which simultaneously flexibility high-efficiency power generation. With such fibers, TET-based sensors high mechanical stability wearability are successfully fabricated through stitching p-n segment fabric. The results indicate containing 50 pairs open-circuit voltage of 7.5 mV density 119.79 nW cm-2 at temperature difference 300 °C. output signal then calculated corresponding based linear relationship between temperature. alarm response time flame-retardant properties further displayed. Such true textiles offer breathability compatibility body movement, demonstrating their potential application in clothing.
Language: Английский
Citations
84
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(23)
Published: Feb. 12, 2024
Abstract Passive radiative cooling technologies play an integral role in advancing sustainable development. While the potential of polymer‐based materials is increasingly recognized, they often degrade under prolonged ultraviolet (UV) radiation exposure, which undermines both their mechanical and performance. To address this challenge, a coaxial electrospinning method to prepare BST@TPU membrane, with core layer strontium barium titanate nanorods (BST NRs) shell thermoplastic polyurethane (TPU) employed. Capitalizing on UV absorption free radical adsorption properties BST NRs, stability TPU membrane significantly increased. Additionally, inclusion high refractive index NRs compensates for decrease reflectivity caused by absorption. After 216 h continuous 0.7 kW m −2 irradiation, initially exhibits reflectance 97.2%, demonstrated modest decline 92.1%. Its net power maintains 85.78 W from initial 125.21 , extending useful lifetime threefold. This innovation extends promise enhancing efficiency durability materials, contributing solutions across various applications.
Language: Английский
Citations
36
Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)
Published: May 21, 2024
Skin-attachable electronics have garnered considerable research attention in health monitoring and artificial intelligence domains, whereas susceptibility to electromagnetic interference (EMI), heat accumulation issues, ultraviolet (UV)-induced aging problems pose significant constraints on their potential applications. Here, an ultra-elastic, highly breathable, thermal-comfortable epidermal sensor with exceptional UV-EMI shielding performance remarkable thermal conductivity is developed for high-fidelity of multiple human electrophysiological signals. Via filling the elastomeric microfibers thermally conductive boron nitride nanoparticles bridging insulating fiber interfaces by plating Ag (NPs), interwoven conducting network (0.72 W m
Language: Английский
Citations
28
ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(14), P. 5695 - 5704
Published: March 27, 2024
Daytime passive radiative cooling is an effective way to reduce energy consumption for building cooling. However, overcooling might occur in at low-temperature which presents limitations thermal management. Herein, a new SiO2/poly(vinyl alcohol) composite aerogel with nanomicro–multistage porous structure insulation and was fabricated by non-solvent-assisted freeze-drying strategy. In the fabrication process, nonsolvent (acetone) poly(vinyl utilized control proportion size of macro-porous inside aerogel, making conductivity decreased 0.0390 W/mK while spontaneously increasing its solar reflectance infrared (8–13 μm) emissivity 93.70% 98.19%, respectively. The achieved sub-ambient up 14.1 °C during day above-ambient warming 3.8 night, avoiding nighttime overcooling. demonstrates adaptive management compared commercial materials, it suitable intelligent energy-saving buildings.
Language: Английский
Citations
19
Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)
Published: March 21, 2024
Abstract Thermoregulatory textiles, leveraging high-emissivity structural materials, have arisen as a promising candidate for personal cooling management; however, their advancement has been hindered by the underperformed water moisture transportation capacity, which impacts on thermophysiological comfort. Herein, we designed wettability-gradient-induced-diode (WGID) membrane achieving MXene-engineered electrospun technology, could facilitate heat dissipation and moisture-wicking transportation. As result, obtained WGID obtain temperature of 1.5 °C in “dry” state, 7.1 “wet” was ascribed to its high emissivity 96.40% MIR range, superior thermal conductivity 0.3349 W m −1 K (based radiation- conduction-controlled mechanisms), unidirectional property. The proposed design offers an approach meticulously engineering membranes with enhanced transportation, thereby paving way developing more efficient comfortable thermoregulatory textiles high-humidity microenvironment.
Language: Английский
Citations
17
Materials Today, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 1, 2025
Language: Английский
Citations
2
Nano-Micro Letters, Journal Year: 2025, Volume and Issue: 17(1)
Published: Feb. 17, 2025
Abstract As living standards improve, the energy consumption for regulating indoor temperature keeps increasing. Windows, in particular, enhance brightness but also lead to increased loss, especially sunny weather. Developing a product that can maintain while reducing is challenge. We developed facile, spectrally selective transparent ultrahigh-molecular-weight polyethylene composite film address this trade-off. It based on blend of antimony-doped tin oxide and then spin-coated hydrophobic fumed silica, achieving high visible light transmittance (> 70%) shielding rates ultraviolet 90%) near-infrared 70%). When applied acrylic window containers placed outside, cause 10 °C drop compared pure polymer film. Moreover, building simulations, annual savings could be between 14.1% ~ 31.9% per year. The development energy-efficient eco-friendly films crucial promoting sustainability environment.
Language: Английский
Citations
2
Small, Journal Year: 2023, Volume and Issue: 20(18)
Published: Dec. 10, 2023
Abstract Multifunctional wearable heaters have attracted much attention for their effective applications in personal thermal management and medical therapy. Compared to passive heating, Joule heating offers significant advantages terms of reusability, reliable temperature control, versatile coupling. Joule‐heated fabrics make electronics smarter. This review critically discusses recent advances smart fabrics, focusing on various fabrication strategies based material‐structure synergy. Specifically, applicable conductive materials with effect are first summarized. Subsequently, different preparation methods compared, then clothing, healthcare, visual indication discussed. Finally, the challenges faced developing these possible solutions
Language: Английский
Citations
39
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown
Published: June 4, 2024
Abstract Porous photonic structures have greatly advanced large‐scale radiative cooling application owing to its satisfying optical properties, easy‐designation, and low cost. However, current reported porous materials mainly focuses on uniform or random pore distribution structure, which failed achieve precise spectrum control for sunlight mid‐infrared light, thereby weakening the performance. Herein, gradient structural metamaterials (GSPMs) are proposed successfully constructed maximizing effectiveness based step‐by‐step freeze‐casting technology. The designed GSPMs with micro‐nano structure can wide‐range scatter entire solar while possess gradual refractive index transition increase air‐medium interface absorption at regions. Notably, reflectivity emissivity of reach 97.3% 97.6%, achieving maxinum temperature 8.7 °C net power 94.1 W m −2 , presenting a higher effect than materials. Moreover, enable compatibility color aesthetic superiorities due selective spectra response behavior, as well be applied in building materials, realizing efficient energy saving CO 2 emission reduction. This work highly daytime cooling, offering new possibilities design next‐generation
Language: Английский
Citations
16
Advanced Science, Journal Year: 2024, Volume and Issue: 11(32)
Published: June 25, 2024
Abstract Tremendous popularity is observed for multifunctional flexible electronics with appealing applications in intelligent electronic skins, human–machine interfaces, and healthcare sensing. However, the reported sensing electronics, mostly can hardly provide ultrasensitive sensitivity, wider range, robust cycling stability simultaneously, are limited of efficient heat conduction out from contacted skin interface after wearing on human to satisfy thermal comfort skin. Inspired tactile perception microstructure (epidermis/spinosum/signal transmission) skin, a comfortably wearable hereby prepared conductive boron nitride nanosheets‐incorporated polyurethane elastomer matrix MXene nanosheets‐coated surface microdomes as epidermis/spinosum layers assembled interdigitated electrode signal transmission layer. It demonstrates performance sensitivity (≈288.95 kPa −1 ), up 300 20 000 cycles obvious contact area variation between microdome microstructures under external compression. Furthermore, bioinspired present advanced management by timely dissipation meet incorporated nanosheets. Thus, it vitally promising artificial human‐interactive sensing, personal health management.
Language: Английский
Citations
14