Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 155729 - 155729
Опубликована: Сен. 1, 2024
Язык: Английский
ACS Nano, Год журнала: 2023, Номер 17(18), С. 18308 - 18317
Опубликована: Сен. 13, 2023
Climate change has recently caused more and severe temperatures, inducing a growing demand for personal thermal management at outdoors. However, designing textiles that can achieve thermoregulation without energy consumption in severely hot cold environments remains huge challenge. Herein, hierarchically nanofibrous (HNF) textile with improved insulation radiative functions is fabricated efficient temperatures. The consists of cooling layer, an intermediate heating wherein the porous lignocellulose aerogel membrane (LCAM) as layer low conductivity (0.0366 W·m-1·K-1), ensuring less heat loss weather blocking external weather. introduction polydimethylsiloxane (PDMS) increases emissivity (90.4%) atmospheric window also endows it perfect self-cleaning performance. Solar absorptivity (80.1%) dramatically increased by adding only 0.05 wt% carbon nanotubes (CNTs) into polyacrylonitrile. An outdoor test demonstrates HNF temperature drop 7.2 °C compared white cotton environment be high 12.2 warmer than black environment. In addition, possesses excellent moisture permeability, breathability, directional perspiration performances, making promising environments.
Язык: Английский
Процитировано
89
Advanced Functional Materials, Год журнала: 2023, Номер 34(11)
Опубликована: Дек. 6, 2023
Abstract Passive radiative cooling without energy consumption is increasingly being explored as an eco‐friendly alternative to electric for mitigating heat stress caused by global warming. Incorporating into personal thermal management has garnered widespread interest. However, existing sub‐ambient textiles face challenges related inferior solar reflectance, poor outdoor durability, or health concerns. Here, a durable multilayer silk textile (MST) developed that achieves excellent comprehensive performance the first time, including both ultrahigh reflectance (96.5%) and infrared emittance (97.1%), safety, air moisture permeability, high mechanical strength, washability, abrasion resistance, surface hydrophobicity, UV resistance. The MST remarkable temperature drop of 5.1 °C under 892.4 W m −2 ultra‐strong radiation surpasses commercial cotton at noon with reductions 6.0 8.3 °C, respectively. For proof concept, hat using fabricated, which shows improved compared hats. Considering its outstanding performance, zero consumption, abundant raw materials, scalable production ability, it believed holds great promise practical applications in daytime management.
Язык: Английский
Процитировано
47
Progress in Materials Science, Год журнала: 2024, Номер 144, С. 101291 - 101291
Опубликована: Апрель 4, 2024
Язык: Английский
Процитировано
31
Results in Chemistry, Год журнала: 2024, Номер 8, С. 101552 - 101552
Опубликована: Май 22, 2024
The need for effective and sustainable thermal management systems is expanding across a variety of industries, phase change materials (PCMs) have become flexible alternative to meet this demand. ability store significant amounts heat during their transition over constrained temperature range make them attractive candidates regulation or energy storage applications in several industrial sectors. This review paper examines recent developments PCM effects on including building construction, solar storage, electronics, automobiles, pharma health care, waste recovery, electricity generation, water treatment, food beverages, textiles. article starts off by giving basic overview PCMs explaining distinctive properties, classification, operating principles. It then delves into the in-depth study, covering advancements applications. extensive assessment covers both prospective directions further study development as well crucial elements influencing practical application PCMs. Overall, provides thorough summary emphasizing enormous potential improve efficiency, lower carbon emissions, promote development. useful resource scientists, engineers, decision-makers working domains engineering, management, science. encourages greater innovation more efficient world.
Язык: Английский
Процитировано
28
Renewable and Sustainable Energy Reviews, Год журнала: 2024, Номер 200, С. 114533 - 114533
Опубликована: Май 17, 2024
Язык: Английский
Процитировано
21
Advanced Materials, Год журнала: 2024, Номер unknown
Опубликована: Июль 29, 2024
Abstract Passive radiative cooling is a promising technology for heat dissipation that does not consume energy. However, current materials can only exhibit subambient under atmospheric conditions and struggle to process specific accumulation. Thus, passive thermal regulation mechanism adapted wide‐temperature‐range applications required match device heating systems. Herein, heteroporous nanocomposite film (HENF) with thermo‐adaptive radiation performance reported. Compared conventional porous films limited scattering efficiencies, the HENFs multistage have strong emissivity of 96.5% (8–13 µm) high reflectivity 97.3% (0.3–2.5 µm), resulting in an ultrahigh power 114 W m −2 . In such HENFs, theoretical analyses confirmed spectrum management superiority unit terms efficiency strength, their cascading effect enhancing overall film‐cooling efficiency. The mechanical performance, phase‐transition features, environmental adaptive properties are also exhibited. Importantly, synergistically couple absorption effectively accumulation counteract shock devices. It anticipated will act as platform surface over wide temperature range.
Язык: Английский
Процитировано
21
Advanced Functional Materials, Год журнала: 2024, Номер unknown
Опубликована: Сен. 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.
Язык: Английский
Процитировано
21
Nano-Micro Letters, Год журнала: 2025, Номер 17(1)
Опубликована: Фев. 17, 2025
Abstract Rapid population growth in recent decades has intensified both the global energy crisis and challenges posed by climate change, including warming. Currently, increased frequency of extreme weather events large fluctuations ambient temperature disrupt thermal comfort negatively impact health, driving a growing dependence on cooling heating sources. Consequently, efficient management become central focus research. Traditional systems consume substantial energy, further contributing to greenhouse gas emissions. In contrast, emergent radiant technologies that rely renewable have been proposed as sustainable alternatives. However, achieving year-round without additional input remains formidable challenge. Recently, dynamic radiative emerged most promising solution, offering potential for energy-efficient adaptation across seasonal variations. This review systematically presents advancements management, covering fundamental principles, switching mechanisms, primary materials, application areas. Additionally, key hindering broader adoption are discussed. By highlighting their transformative potential, this provides insights into design industrial scalability these innovations, with ultimate aim promoting integration applications.
Язык: Английский
Процитировано
3
Advanced Functional Materials, Год журнала: 2023, Номер 34(16)
Опубликована: Дек. 28, 2023
Abstract Textiles can be promising next‐generation wearable thermal management systems by exhibiting tunable infrared emissivity for dual‐mode control of cooling/warming, yet textiles often exhibit constant emission. Herein, a dynamic thermoregulatory textile is woven from scalable‐manufactured radiative electrochromic fibers and easily driven low voltage in manner that results modulated Δɛ≈0.35. Through synergistic combination the spiral outer electrode electrochemically carbon nanotube layer, excellent electrochemical controllability achieved over 100‐m length within 5s because decreased internal resistance with increasing length. As result, suppresses substantial temperature variation ensures regulation ≈1.6 °C simulated skin (much better than traditional textiles: ≈2.9 °C) under an ambient fluctuation 11.2 °C. Finally, camouflage invisible displays are also demonstrated weaving or embroidering onto clothing.
Язык: Английский
Процитировано
25
Advanced Fiber Materials, Год журнала: 2024, Номер 6(4), С. 1241 - 1252
Опубликована: Май 3, 2024
Язык: Английский
Процитировано
16