Electrochromic Harvester for All-Day Energy Savings in Buildings

IF 18.2 1区材料科学 Q1 CHEMISTRY, PHYSICAL

ACS Energy Letters Pub Date : 2025-06-13 DOI:10.1021/acsenergylett.5c01153

Wenhao Wang, Long Wang, Shenghao Jin, Tao Xie, Gu Liu, Zhen Meng, Tonghao Liu, Yina Cui, Haoyuan Zhang, Weiguo Liu, Zhenyi Gao, Boxiang Wang, Liuying Wang

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引用次数: 0

Abstract

Technologies that can simultaneously capture energy from outer space and the sun have garnered extensive interest in recent years. However, the utilization of these two energy sources is challenged by their conflicting spectral requirements, making it difficult to capture both in a single device or material. Here, an adaptive energy harvester coupling photothermal conversion and radiative cooling utilizing photonic metastructure electrodes in conjunction with reversible metal electrodeposition technology for all-day continuous energy harnessing is reported. The harvester demonstrates sustained bistability for over 30 days with large emissivity contrast (0.82 at 3–5 μm, 0.66 at 7.5–13 μm), robust environmental durability, and scalability (100 cm²) for switching between heating and cooling states. World-wide energy simulations show that it can significantly reduce energy consumption in buildings by up to 21.4%, amounting to a savings of 95.8 GJ year-round. This harvester offers a promising method to utilize heat source and heat sink, sun and outer space, to improve sustainability and reduce carbon foot print of the Earth.

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用于建筑物全天节能的电致变色收割机

近年来，能够同时从外太空和太阳获取能量的技术引起了广泛的兴趣。然而，这两种能源的利用受到它们相互冲突的光谱要求的挑战，使得难以在单个设备或材料中捕获这两种能源。本文报道了一种利用光子元结构电极结合可逆金属电沉积技术，将光热转换和辐射冷却耦合在一起的自适应能量收集器，用于全天连续的能量利用。该收割机具有30天以上的持续双稳定性，具有高发射率对比度（3-5 μm为0.82,7.5-13 μm为0.66），强大的环境耐久性和可扩展性（100 cm2），可在加热和冷却状态之间切换。世界范围内的能源模拟表明，它可以显著降低建筑能耗高达21.4%，相当于全年节省95.8吉焦。这种收割机提供了一种很有前途的方法，利用热源和散热器，太阳和外太空，以提高可持续性和减少地球的碳足迹。

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

ACS Energy Letters Energy-Renewable Energy, Sustainability and the Environment

CiteScore

31.20

自引率

5.00%

发文量

469

审稿时长

1 months

期刊介绍： ACS Energy Letters is a monthly journal that publishes papers reporting new scientific advances in energy research. The journal focuses on topics that are of interest to scientists working in the fundamental and applied sciences. Rapid publication is a central criterion for acceptance, and the journal is known for its quick publication times, with an average of 4-6 weeks from submission to web publication in As Soon As Publishable format. ACS Energy Letters is ranked as the number one journal in the Web of Science Electrochemistry category. It also ranks within the top 10 journals for Physical Chemistry, Energy & Fuels, and Nanoscience & Nanotechnology. The journal offers several types of articles, including Letters, Energy Express, Perspectives, Reviews, Editorials, Viewpoints and Energy Focus. Additionally, authors have the option to submit videos that summarize or support the information presented in a Perspective or Review article, which can be highlighted on the journal's website. ACS Energy Letters is abstracted and indexed in Chemical Abstracts Service/SciFinder, EBSCO-summon, PubMed, Web of Science, Scopus and Portico.