Anisotropic Hygroscopic Hydrogels with Synergistic Insulation-Radiation-Evaporation for High-Power and Self-Sustained Passive Daytime Cooling
Highlights Inspired by human skin structure, an anisotropic synergistically performed insulation-radiation-evaporation cooler is developed by leveraging a dual-alignment structure both internal and external to the hydrogel. The coordinated thermal and water transport through multiscale engineering c...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-04-01
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| Series: | Nano-Micro Letters |
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| Online Access: | https://doi.org/10.1007/s40820-025-01766-5 |
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| _version_ | 1849234754096857088 |
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| author | Xiuli Dong Kit-Ying Chan Xuemin Yin Yu Zhang Xiaomeng Zhao Yunfei Yang Zhenyu Wang Xi Shen |
| author_facet | Xiuli Dong Kit-Ying Chan Xuemin Yin Yu Zhang Xiaomeng Zhao Yunfei Yang Zhenyu Wang Xi Shen |
| author_sort | Xiuli Dong |
| collection | DOAJ |
| description | Highlights Inspired by human skin structure, an anisotropic synergistically performed insulation-radiation-evaporation cooler is developed by leveraging a dual-alignment structure both internal and external to the hydrogel. The coordinated thermal and water transport through multiscale engineering contributed to high-power synergistic passive cooling in the day and water self-regeneration at night. The cooler achieved an impressive cooling power of 311 W m−2 and an average sub-ambient cooling temperature of ~8.2 °C under direct sunlight. |
| format | Article |
| id | doaj-art-2e4c13677d4b449e811a21339fa082f3 |
| institution | Kabale University |
| issn | 2311-6706 2150-5551 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nano-Micro Letters |
| spelling | doaj-art-2e4c13677d4b449e811a21339fa082f32025-08-20T04:03:02ZengSpringerOpenNano-Micro Letters2311-67062150-55512025-04-0117112110.1007/s40820-025-01766-5Anisotropic Hygroscopic Hydrogels with Synergistic Insulation-Radiation-Evaporation for High-Power and Self-Sustained Passive Daytime CoolingXiuli Dong0Kit-Ying Chan1Xuemin Yin2Yu Zhang3Xiaomeng Zhao4Yunfei Yang5Zhenyu Wang6Xi Shen7Department of Aeronautical and Aviation Engineering, The Hong Kong Polytechnic UniversityDepartment of Aeronautical and Aviation Engineering, The Hong Kong Polytechnic UniversityDepartment of Aeronautical and Aviation Engineering, The Hong Kong Polytechnic UniversityDepartment of Aeronautical and Aviation Engineering, The Hong Kong Polytechnic UniversityDepartment of Aeronautical and Aviation Engineering, The Hong Kong Polytechnic UniversityDepartment of Aeronautical and Aviation Engineering, The Hong Kong Polytechnic UniversitySchool of Mechanical Engineering, Jiangnan UniversityDepartment of Aeronautical and Aviation Engineering, The Hong Kong Polytechnic UniversityHighlights Inspired by human skin structure, an anisotropic synergistically performed insulation-radiation-evaporation cooler is developed by leveraging a dual-alignment structure both internal and external to the hydrogel. The coordinated thermal and water transport through multiscale engineering contributed to high-power synergistic passive cooling in the day and water self-regeneration at night. The cooler achieved an impressive cooling power of 311 W m−2 and an average sub-ambient cooling temperature of ~8.2 °C under direct sunlight.https://doi.org/10.1007/s40820-025-01766-5Evaporative coolingRadiative coolingThermal insulationHydrogelAerogel |
| spellingShingle | Xiuli Dong Kit-Ying Chan Xuemin Yin Yu Zhang Xiaomeng Zhao Yunfei Yang Zhenyu Wang Xi Shen Anisotropic Hygroscopic Hydrogels with Synergistic Insulation-Radiation-Evaporation for High-Power and Self-Sustained Passive Daytime Cooling Nano-Micro Letters Evaporative cooling Radiative cooling Thermal insulation Hydrogel Aerogel |
| title | Anisotropic Hygroscopic Hydrogels with Synergistic Insulation-Radiation-Evaporation for High-Power and Self-Sustained Passive Daytime Cooling |
| title_full | Anisotropic Hygroscopic Hydrogels with Synergistic Insulation-Radiation-Evaporation for High-Power and Self-Sustained Passive Daytime Cooling |
| title_fullStr | Anisotropic Hygroscopic Hydrogels with Synergistic Insulation-Radiation-Evaporation for High-Power and Self-Sustained Passive Daytime Cooling |
| title_full_unstemmed | Anisotropic Hygroscopic Hydrogels with Synergistic Insulation-Radiation-Evaporation for High-Power and Self-Sustained Passive Daytime Cooling |
| title_short | Anisotropic Hygroscopic Hydrogels with Synergistic Insulation-Radiation-Evaporation for High-Power and Self-Sustained Passive Daytime Cooling |
| title_sort | anisotropic hygroscopic hydrogels with synergistic insulation radiation evaporation for high power and self sustained passive daytime cooling |
| topic | Evaporative cooling Radiative cooling Thermal insulation Hydrogel Aerogel |
| url | https://doi.org/10.1007/s40820-025-01766-5 |
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