Renewable Energy, Journal Year: 2024, Volume and Issue: unknown, P. 121658 - 121658
Published: Oct. 1, 2024
Language: Английский
Science, Journal Year: 2024, Volume and Issue: 386(6723), P. 788 - 794
Published: Nov. 14, 2024
Subambient daytime radiative cooling enables temperatures to passively reach below ambient temperature, even under direct sunlight, by emitting thermal radiation toward outer space. This technology holds promise for numerous exciting applications. However, previous demonstrations of subambient require surfaces that directly face the sky, and these cannot be applied vertical are ubiquitous in real-world scenarios such as buildings vehicles. Here, we demonstrate peak sunlight using a hierarchically designed, angularly asymmetric, spectrally selective emitter. Under about 920 watts per square meter, our emitter reaches temperature is 2.5°C corresponding reduction 4.3° 8.9°C compared with silica-polymer hybrid cooler commercial white paint, respectively.
Language: Английский
Citations
32
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 12, 2024
Abstract Personal radiative cooling fabrics are a promising zero‐energy solution for creating cool and comfortable microclimate outdoor crowds. Despite significant progress, achieving efficient under some extreme situations, such as thermal shock intensive physical activity, remains challenge. Herein, bioinspired metafabric with dual‐gradient Janus design is reported personal evaporative cooling. The hierarchical fiber structure allows an excellent solar reflectance of 99.4% mid‐infrared emittance 0.94, inducing skin temperature drop 17.8 °C intense sunlight. Mesoporous silica nanoparticles fixed in the fibrous network can store capacity by atmospheric moisture‐absorption mild humid nighttime release moisture‐desorption hot daytime, providing additional 2.5 °C. Dual‐gradient endows outstanding sweat‐wicking effect high‐performance sweat capacity. In steady‐state evaporation tests, maximum consumption only 0.5 ml h −1 to temperature, preventing harmful excessive sweating. Additionally, also possesses favorable wearability color expansibility. Given these first‐rate features, will pave way development advanced functional fabrics.
Language: Английский
Citations
21
Advanced Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 5, 2025
Textiles have played a pivotal role in human development, evolving from basic fibers into sophisticated, multifunctional materials. Advances material science, nanotechnology, and electronics propelled next-generation textiles beyond traditional functionalities, unlocking innovative possibilities for diverse applications. Thermal management incorporate ultralight, ultrathin insulating layers adaptive cooling technologies, optimizing temperature regulation dynamic extreme environments. Moisture utilize advanced structures unidirectional transport breathable membranes, ensuring exceptional comfort activewear outdoor gear. Protective exhibit enhanced features, including antimicrobial, antiviral, anti-toxic gas, heat-resistant, radiation-shielding capabilities, providing high-performance solutions healthcare, defense, hazardous industries. Interactive integrate sensors monitoring physical, chemical, electrophysiological parameters, enabling real-time data collection responses to various environmental user-generated stimuli. Energy leverage triboelectric, piezoelectric, hygroelectric effects improve energy harvesting storage wearable devices. Luminous display textiles, electroluminescent fiber optic systems, enable visual applications fashion communication. These advancements position at the forefront of materials significantly expanding their potential across wide range
Language: Английский
Citations
8
Light Science & Applications, Journal Year: 2025, Volume and Issue: 14(1)
Published: March 26, 2025
Abstract With the development of space exploration and exploitation, it is imperative to address potential threats posed objects, particularly ground-based infrared observation. However, in extreme environment, achieving camouflage across different bands with simultaneous thermal management challenging has so far slipped out concern. Here, we propose space-to-ground strategy, compatible radiative heat dissipation. Camouflage H, K, mid-wave-infrared (MWIR), long-wave-infrared (LWIR) achieved through a multilayer structure, dissipation very-long-wave-infrared (VLWIR) band. High absorptivity (0.839/0.633) H/K minimizes reflected signal solar radiation low emissivity (0.132/0.142) MWIR/LWIR suppresses signal. Additionally, high (0.798) VLWIR band ensures efficient management, resulting temperature decrement 39.8 °C metal reference simulated environment (with 1200 W m − 2 input). This work inspires sophisticated spectral manipulation environments guides techniques for objects.
Language: Английский
Citations
5
ACS Nano, Journal Year: 2025, Volume and Issue: unknown
Published: March 8, 2025
Solar-driven interfacial evaporation (SDIE) has emerged as a promising technology for addressing global water scarcity by utilizing solar-thermal conversion and at the air/material/water interface. The exceptional performance of these systems attracted significant interest; it is imperative to establish rigorous scientific standards evaluating effectiveness, optimizing system design, ensuring efficient practical applications. In this Review, we propose consensus criteria accurately assessing guiding future advancements. We then explore fundamental mechanisms driving synergy, emphasizing how material compositions, microscopic hierarchical structures, macroscopic three-dimensional spatial architecture designs enhance solar absorption photothermal conversion; balance heat confinement with pathway optimization; manage salt resistance; regulate enthalpy during vaporization. These matched coordination strategies are crucial maximizing target SDIE efficiency. Additionally, investigate applications technologies, focusing on cutting-edge progress versatile purification, combined atmospheric harvesting, collection, electric generation, deicing. Finally, highlight challenges exciting opportunities advancing research, efforts integrate principles, system-level collaboration, application-driven approaches boost sustainable highly energy technologies. By linking evaluation optimization influencing factors, offer comprehensive overview field outlook that promotes clean production synergistic
Language: Английский
Citations
4
ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 1, 2025
Radiative cooling textiles designed to reflect incoming sunlight and enhance mid-infrared (MIR) emissivity show great potential for ensuring personal thermal comfort. Thus, these are gaining prominence as a means of combating the heat stress induced by global warming. Nonetheless, integrating radiative effects into scalable textile materials thermoregulation remains formidable challenge. To achieve optimal performance, must exhibit finely tuned optical properties spectral selectivity. In this study, smart was devised drawing inspiration from structure greater flamingo (Phoenicopterus roseus) feathers, which have effective thermoregulatory properties. Specifically, nanoporous nonwoven material fabricated polyacrylonitrile alumina particles integrated with cellulosic cotton knit fabric through an efficient electrospinning hot pressing process produce metafabric (PAC@T) superior wearer PAC@T exhibited average fiber diameter 501.6 nm pore size 857.6 nm, resulting in solar reflectance 95 ± 1.2% MIR 91.8 0.98%. It also demonstrated enhanced water vapor transmission rate (5.5 kg/m2/24 h), evaporation (334 2.2 mg/h), significant leading temperatures 6.1 °C cooler than those achieved traditional knitted textile. offers several distinct advantages, namely efficiency, long-term durability, energy-free operation. addition, it is formed accessible raw via potentially that likely substantial applications industrial generation thermoregulation.
Language: Английский
Citations
2
Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)
Published: March 10, 2025
Lightweight, nanoporous aerogel fibers are crucial for personal thermal management and specialized heat protection. However, wet-spinning methods, exemplified by aramid aerogels, inevitably form a dense outer layer, significantly reducing the volume fraction of efficient barrier nanovoids limiting development ultimate resistance in fibers. Herein, we develop microfluidic spinning method to prepare gradient all-nanostructure (GAFs). Benefiting from simultaneous shear alignment diffusion dilution good solvent within channels, precursor gel assemble into structure with sparse exterior interior, which reverses during supercritical drying sheath core layers average pore diameters 150 nm 600 nm, respectively. Experiments simulations reveal that nanostructure creates high interfacial at transfer interfaces, resulting radial conductivity as low 0.0228 W m–1 K–1, far below air wet-spun Moreover, GAF's unique nano-entangled network efficiently dissipates stress, achieving exceptionally tensile strength (29.5 MPa) fracture strain (39.2%). This work establishes correlation between multiscale nanostructures superlative performance, thereby expanding scope applications intricate environments. The authors demonstrate process varied size, creating m−1 K−1
Language: Английский
Citations
2
Solar Energy Materials and Solar Cells, Journal Year: 2025, Volume and Issue: 286, P. 113577 - 113577
Published: March 14, 2025
Language: Английский
Citations
2
ACS Nano, Journal Year: 2024, Volume and Issue: 18(45), P. 31085 - 31097
Published: Oct. 31, 2024
Due to their good wearability, smart fabrics have gradually developed into one of the important components multifunctional flexible electronics. Nevertheless, function integration is typically accomplished through intricate stacking diverse modules, which inevitably compromises comfort and elevates processing complexities. The these discrete functional modules a unified design for represents superior solution. Here, we put forward rational approach typical challenges thermal management, energy supply, surface contamination in fabrics. This sandwich-structured multilayer fabric (MLF) obtained by continuous electrospinning two layer P(VDF-HFP) functionalized with core–shell SiO2/ZnO/ZIF-8 (SZZ) nanoparticles. Specifically, MLFs achieve effective stable harvesting triboelectric nanogenerators (TENGs) hydrophobicity antibacterial properties. Meanwhile, also high mid-infrared emissivity sunlight reflectivity, successfully realizing radiative cooling under different climates, been applied wearing clothing, roof shading, car covers. work may contribute manufacturing next-generation wearable electronics, particularly terms devices.
Language: Английский
Citations
16
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(49)
Published: Aug. 23, 2024
Abstract Individuals are easily threatened by heat stress or hypothermia in outdoor environments. Therefore, there is a pressing necessity for thermal regulation materials capable of adapting to temperature shocks. Herein, an aerogel‐functionalized textile as passive regulator (AT‐PTR) designed and demonstrated, comprising heating side composed carbon nanotube‐modified cotton fabric cooling built silica poly(vinylidene‐co‐hexafluoropropene) P(VdF‐HFP) nanofibers. The AT‐PTR demonstrates exceptional solar absorption on the side, achieving warming performance 23.2 °C cold winter. On its high reflectance infrared emissivity facilitate sub‐ambient effect 12.7 during hot summer. Moreover, field tests conducted across various regions seasons demonstrate all‐seasonal human management capability. Additionally, exhibits outstanding wind‐proof moisture permeability, flow can be simply attained flipping AT‐PTR, ensuring sustained comfort individuals
Language: Английский
Citations
13