Regulating Cold Energy from the Universe by Bifunctional Phase Change Materials for Sustainable Cooling

IF 24.4 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Advanced Energy Materials Pub Date : 2024-09-23 DOI:10.1002/aenm.202402667

Siqi Wang, Minqiang Wu, Han Han, Ruxue Du, Zhengchuang Zhao, Wenjia Liu, Si Wu, Ruzhu Wang, Tingxian Li

引用次数: 0

Abstract

Harvesting cold energy from the universe by radiative cooling (RC) is a promising zero-carbon route for green cooling. However, low power density and spatiotemporal energy mismatch of RC are great challenges for realizing efficient space cooling. Herein, a facile strategy for regulating cold energy from the universe by bifunctional phase change materials (PCM) for sustainable cooling is proposed. A bifunctional phase-change composite film (PCCF) by integrating RC coating with PCM for 24-h cold energy harvesting, storage, and utilization is demonstrated. The bifunctional PCCF can harvest cold energy from the universe and regulate the redundant cold energy generated by nighttime RC to compensate for the cold shortage of daytime RC, realizing flexible regulation of all-day RC and setting new records of cooling power up to 180 W m⁻² with sub-ambient temperature drop of 11.95 °C. The work offers a promising strategy for zero-carbon sustainable cooling by maximizing RC with cold energy storage.

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利用双功能相变材料调节来自宇宙的冷能，实现可持续冷却

通过辐射冷却（RC）从宇宙中收集冷能是一条很有前景的零碳绿色冷却途径。然而，辐射冷却的低功率密度和时空能量不匹配是实现高效空间冷却的巨大挑战。本文提出了一种利用双功能相变材料（PCM）调节宇宙冷能的简便策略，以实现可持续冷却。通过集成 RC 涂层和 PCM，展示了一种双功能相变复合膜（PCCF），可实现 24 小时冷能收集、存储和利用。该双功能 PCCF 可从宇宙中收集冷能，并调节夜间 RC 产生的多余冷能，以弥补白天 RC 的冷能不足，从而实现全天候 RC 的灵活调节，并创下了制冷功率高达 180 W m-2 且亚环境温度下降 11.95 ℃ 的新纪录。这项工作通过最大限度地利用 RC 进行冷能储存，为零碳可持续制冷提供了一种前景广阔的战略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advanced Energy Materials CHEMISTRY, PHYSICAL-ENERGY & FUELS

CiteScore

41.90

自引率

4.00%

发文量

889

审稿时长

1.4 months

期刊介绍： Established in 2011, Advanced Energy Materials is an international, interdisciplinary, English-language journal that focuses on materials used in energy harvesting, conversion, and storage. It is regarded as a top-quality journal alongside Advanced Materials, Advanced Functional Materials, and Small. With a 2022 Impact Factor of 27.8, Advanced Energy Materials is considered a prime source for the best energy-related research. The journal covers a wide range of topics in energy-related research, including organic and inorganic photovoltaics, batteries and supercapacitors, fuel cells, hydrogen generation and storage, thermoelectrics, water splitting and photocatalysis, solar fuels and thermosolar power, magnetocalorics, and piezoelectronics. The readership of Advanced Energy Materials includes materials scientists, chemists, physicists, and engineers in both academia and industry. The journal is indexed in various databases and collections, such as Advanced Technologies & Aerospace Database, FIZ Karlsruhe, INSPEC (IET), Science Citation Index Expanded, Technology Collection, and Web of Science, among others.