Nano Energy, Год журнала: 2024, Номер unknown, С. 110361 - 110361
Опубликована: Окт. 1, 2024
Язык: Английский
Nano-Micro Letters, Год журнала: 2023, Номер 15(1)
Опубликована: Окт. 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.
Язык: Английский
Процитировано
90
Advanced Functional Materials, Год журнала: 2024, Номер 34(23)
Опубликована: Фев. 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.
Язык: Английский
Процитировано
43
Nano-Micro Letters, Год журнала: 2024, Номер 16(1)
Опубликована: Май 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
Язык: Английский
Процитировано
31
ACS Sustainable Chemistry & Engineering, Год журнала: 2024, Номер 12(14), С. 5695 - 5704
Опубликована: Март 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.
Язык: Английский
Процитировано
23
Advanced Functional Materials, Год журнала: 2024, Номер unknown
Опубликована: Июнь 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
Язык: Английский
Процитировано
20
Nano-Micro Letters, Год журнала: 2024, Номер 16(1)
Опубликована: Март 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.
Язык: Английский
Процитировано
19
Materials Today, Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
4
Small, Год журнала: 2023, Номер 20(18)
Опубликована: Дек. 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
Язык: Английский
Процитировано
42
Advanced Science, Год журнала: 2024, Номер 11(32)
Опубликована: Июнь 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.
Язык: Английский
Процитировано
15
Micromachines, Год журнала: 2024, Номер 15(10), С. 1226 - 1226
Опубликована: Сен. 30, 2024
Non-invasive medical nanofiber technology, characterized by its high specific surface area, biocompatibility, and porosity, holds significant potential in various domains, including tissue repair biosensing. It is increasingly becoming central to healthcare offering safer more efficient treatment options for contemporary medicine. Numerous studies have explored non-invasive nanofibers recent years, yet a comprehensive overview of the field remains lacking. In this paper, we provide summary applications electrospun fields, considering multiple aspects perspectives. Initially, introduce electrospinning nanofibers. Subsequently, detail their health, health monitoring, personal protection, thermal regulation, wound care, highlighting critical role improving human health. Lastly, paper discusses current challenges associated with offers insights into future development trajectories.
Язык: Английский
Процитировано
14