Advances in radiative sky cooling based on the promising electrospinning

Renewable and Sustainable Energy Reviews, Год журнала: 2024, Номер 200, С. 114533 - 114533

Опубликована: Май 17, 2024

Язык: Английский

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Manipulating Hetero‐Nanowire Films for Flexible and Multifunctional Thermoelectric Devices

Advanced Materials, Год журнала: 2024, Номер 36(25)

Опубликована: Март 13, 2024

Abstract Flexible thermoelectric devices hold significant promise in wearable electronics owing to their capacity for green energy generation, temperature sensing, and comfortable wear. However, the simultaneous achievement of excellent multifunctional sensing power generation poses a challenge these devices. Here, ordered tellurium‐based hetero‐nanowire films are designed flexible by optimizing Seebeck coefficient factor. The obtained can efficiently detect both object environment temperature, thermal conductivity, heat proximity, airflow. In addition, combining units with radiative cooling materials exhibits remarkable management capabilities, preventing device overheating avoiding degradation generation. Impressively, this resistance extreme low earth orbit environments. fabrication such provides innovative insights into multimodal harvesting.

Язык: Английский

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Recent advancements in radiative cooling textiles for personal thermal management

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(25), С. 14866 - 14884

Опубликована: Янв. 1, 2024

This review provides a comprehensive overview of radiative cooling textiles from fundamentals, advanced structures and construction strategies to emerging applications.

Язык: Английский

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Bioinspired Durable Daytime Radiative Cooling Wood: Realizing Outdoor Longtime Use

Nano Letters, Год журнала: 2025, Номер unknown

Опубликована: Март 7, 2025

Daytime radiative cooling dissipates heat from surfaces by reflecting sunlight and emitting infrared radiation to outer space, featuring zero-energy consumption. Wood-based coolers have received more attention due their high emissivity, sustainability, low cost. However, they often degrade under ultraviolet (UV) exposure, resulting in a poor efficiency. Herein, inspired the structure-functionality relationship Saharan silver ants, an outdoor durable wood (DCW) is developed that achieves excellent comprehensive performance via assembly of photonic structure Mica@TiO2 on delignified wood, including both solar reflectance (0.958), emittance (0.95), mechanical strength (47 MPa), UV resistance. The unique can prevent breaking C-O-C skeleton direct sunlight; daytime efficiency DCW maintain 4.5 °C after 720 h exposure. This work paves way for development materials energy savings.

Язык: Английский

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Elevating Low-Grade Heat Harvesting with Daytime Radiative Cooling and Solar Heating in Thermally Regenerative Electrochemical Cycles

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер unknown

Опубликована: Апрель 22, 2024

Thermal radiation control has garnered growing interest for its ability to provide localized cooling and heating without energy consumption. However, direct application harvesting remains largely underexplored. In this work, we demonstrate a novel system that leverages daytime radiative solar technologies continuously power charging-free thermally regenerative electrochemical cycle (TREC) devices, turning ubiquitous low-grade ambient heat into electricity. Notably, by harnessing substantial 35 °C temperature differential solely through passive effects, the integrated exhibits cell voltage of 50 mV specific capacity exceeding 20 mAh g–1 PB. This work unlocks potential readily available sustainable electricity generation.

Язык: Английский

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Nano-Engineered Versatile Janus Natural-Skin with Sandwich Structure for Wearable All-Season Personal Thermal Management

Composites Part B Engineering, Год журнала: 2024, Номер 281, С. 111573 - 111573

Опубликована: Май 16, 2024

Язык: Английский

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Experimental and numerical investigation of the effects of passive radiative cooling-based cool roof on building energy consumption

Applied Energy, Год журнала: 2024, Номер 376, С. 124161 - 124161

Опубликована: Авг. 18, 2024

Язык: Английский

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Boosting Self-powered Wearable Thermoelectric Generator with Solar Absorber and Radiative Cooler

Nano Energy, Год журнала: 2024, Номер unknown, С. 110381 - 110381

Опубликована: Окт. 1, 2024

Язык: Английский

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A high-performance all-day vertical thermoelectric generator based on a double-sided reflective structure

Case Studies in Thermal Engineering, Год журнала: 2024, Номер unknown, С. 105333 - 105333

Опубликована: Окт. 1, 2024

Язык: Английский

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Comprehensive Study on the Thermoelectric Properties and Influencing Factors of Wearable Spiral Bracelets Enhanced by Radiation Cooling

ACS Omega, Год журнала: 2025, Номер 10(2), С. 2150 - 2159

Опубликована: Янв. 6, 2025

Wearable thermoelectric generator (TEG) can collect human body heat and convert it into electrical energy, achieving self-powering of the device thus becoming a hot research topic at present. By utilization three-dimensional spiral thin-film structures passive radiation cooling methods, transfer area be increased power generation enhanced. In order to study effect outdoor on performance heating, as well TEG output under different external environments circuit loads, this paper proposes new coupled numerical model wristband system with multiple physical fields. The considers comprehensive influence mechanism system, including effects seasonal changes, frictional heat, transfer. has good accuracy various conditions. potential wearable motion states environmental climate conditions were studied by model. results indicate that presence radiative (RC) promotes maximum increase 181.8% in power. winter, wristbands have best performance. winter is 1.92 μW, open-circuit voltage are 13.88 mV, which approximately 25 5.2 times summer, respectively. This may contribute development high-performance TEGs for flexible applications.

Язык: Английский

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