Scalable Hierarchical‐Colored Passive Cooling Metapaint for Outdoor Facility

ABSTRACT The temperature of metal‐based facilities rises significantly under high outdoor solar irradiation, leading to serious safety accidents. The application of active cooling technology poses challenges due to its high energy consumption, especially in complex outdoor environments. Passive cool...

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Main Authors: Maiping Yang, Zikang Zhou, Mingxiang Liu, Jiawei Wu, Jiaxin Li, Jun Liang, Shiliang Zhang, Mingyue Chen, Hongtao Zeng, Xiaofeng Li, Hao Han, Chong Hou, Guangming Tao
Format: Article
Language:English
Published: Wiley 2025-01-01
Series:EcoMat
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Online Access:https://doi.org/10.1002/eom2.12509
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author Maiping Yang
Zikang Zhou
Mingxiang Liu
Jiawei Wu
Jiaxin Li
Jun Liang
Shiliang Zhang
Mingyue Chen
Hongtao Zeng
Xiaofeng Li
Hao Han
Chong Hou
Guangming Tao
author_facet Maiping Yang
Zikang Zhou
Mingxiang Liu
Jiawei Wu
Jiaxin Li
Jun Liang
Shiliang Zhang
Mingyue Chen
Hongtao Zeng
Xiaofeng Li
Hao Han
Chong Hou
Guangming Tao
author_sort Maiping Yang
collection DOAJ
description ABSTRACT The temperature of metal‐based facilities rises significantly under high outdoor solar irradiation, leading to serious safety accidents. The application of active cooling technology poses challenges due to its high energy consumption, especially in complex outdoor environments. Passive cooling devices with high solar reflection and thermal emission can continuously cool objects under sunlight. However, the white or silvery passive cooling devices do not meet the need for aesthetics and specific demands. Here, we present a hierarchical metapaint for outdoor facilities that simultaneously achieve vibrant color and passive cooling ability. The top layer selectively absorbs visible wavelengths to display desired colors, while the underlayer boosts the reflection of near‐to‐short wavelength infrared (NSWIR) light to prevent solar heating. The metapaint‐coated metal is resistant to high and low temperatures, acidic and alkaline environments, and simulated seawater. It also has satisfactory anti‐fouling properties. When compared to metal coated without commercial paint, the hierarchical passive cooling paint (metapaint) coated metal can cool up to 9.7°C and 17.1°C. The metapaint has excellent passive cooling performance, attributed to its broad‐spectrum selective regulation function. Our work offers a simple, inexpensive, and scalable approach to reduce cooling energy usage and promote a low‐carbon lifestyle.
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institution Kabale University
issn 2567-3173
language English
publishDate 2025-01-01
publisher Wiley
record_format Article
series EcoMat
spelling doaj-art-4261b66f4373440b8ab526adf42b8f9f2025-01-16T00:02:33ZengWileyEcoMat2567-31732025-01-0171n/an/a10.1002/eom2.12509Scalable Hierarchical‐Colored Passive Cooling Metapaint for Outdoor FacilityMaiping Yang0Zikang Zhou1Mingxiang Liu2Jiawei Wu3Jiaxin Li4Jun Liang5Shiliang Zhang6Mingyue Chen7Hongtao Zeng8Xiaofeng Li9Hao Han10Chong Hou11Guangming Tao12Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan ChinaSchool of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan ChinaWuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan ChinaWuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan ChinaWuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan ChinaWuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan ChinaWuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan ChinaReguLambda Inc Wuhan ChinaSchool of Physical Education Huazhong University of Science and Technology Wuhan ChinaHubei Dongcheng Technology Co. Ltd Wuhan ChinaState Grid Hubei Electric Power Co. Ltd. Ultra High Voltage Company Wuhan ChinaWuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan ChinaWuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan ChinaABSTRACT The temperature of metal‐based facilities rises significantly under high outdoor solar irradiation, leading to serious safety accidents. The application of active cooling technology poses challenges due to its high energy consumption, especially in complex outdoor environments. Passive cooling devices with high solar reflection and thermal emission can continuously cool objects under sunlight. However, the white or silvery passive cooling devices do not meet the need for aesthetics and specific demands. Here, we present a hierarchical metapaint for outdoor facilities that simultaneously achieve vibrant color and passive cooling ability. The top layer selectively absorbs visible wavelengths to display desired colors, while the underlayer boosts the reflection of near‐to‐short wavelength infrared (NSWIR) light to prevent solar heating. The metapaint‐coated metal is resistant to high and low temperatures, acidic and alkaline environments, and simulated seawater. It also has satisfactory anti‐fouling properties. When compared to metal coated without commercial paint, the hierarchical passive cooling paint (metapaint) coated metal can cool up to 9.7°C and 17.1°C. The metapaint has excellent passive cooling performance, attributed to its broad‐spectrum selective regulation function. Our work offers a simple, inexpensive, and scalable approach to reduce cooling energy usage and promote a low‐carbon lifestyle.https://doi.org/10.1002/eom2.12509colored paintpassive coolingselective spectral regulationthermal management
spellingShingle Maiping Yang
Zikang Zhou
Mingxiang Liu
Jiawei Wu
Jiaxin Li
Jun Liang
Shiliang Zhang
Mingyue Chen
Hongtao Zeng
Xiaofeng Li
Hao Han
Chong Hou
Guangming Tao
Scalable Hierarchical‐Colored Passive Cooling Metapaint for Outdoor Facility
EcoMat
colored paint
passive cooling
selective spectral regulation
thermal management
title Scalable Hierarchical‐Colored Passive Cooling Metapaint for Outdoor Facility
title_full Scalable Hierarchical‐Colored Passive Cooling Metapaint for Outdoor Facility
title_fullStr Scalable Hierarchical‐Colored Passive Cooling Metapaint for Outdoor Facility
title_full_unstemmed Scalable Hierarchical‐Colored Passive Cooling Metapaint for Outdoor Facility
title_short Scalable Hierarchical‐Colored Passive Cooling Metapaint for Outdoor Facility
title_sort scalable hierarchical colored passive cooling metapaint for outdoor facility
topic colored paint
passive cooling
selective spectral regulation
thermal management
url https://doi.org/10.1002/eom2.12509
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