Статья

Bioinspired Hierarchical Radiative‐Phase Change Hybrid Cooling Composite with Record‐Breaking Cooling Power

Xinpeng HuKey Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education Hubei Key Laboratory of Material Chemistry and Service Failure and Hubei Engineering Research Center for Biomaterials and Medical Protective Materials School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan Hubei 430074 P. R. ChinaBingqing QuanKey Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education Hubei Key Laboratory of Material Chemistry and Service Failure and Hubei Engineering Research Center for Biomaterials and Medical Protective Materials School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan Hubei 430074 P. R. ChinaZhanjin ShiKey Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education Hubei Key Laboratory of Material Chemistry and Service Failure and Hubei Engineering Research Center for Biomaterials and Medical Protective Materials School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan Hubei 430074 P. R. ChinaXiangyu ZhaoKey Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education Hubei Key Laboratory of Material Chemistry and Service Failure and Hubei Engineering Research Center for Biomaterials and Medical Protective Materials School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan Hubei 430074 P. R. ChinaGangchen LuKey Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education Hubei Key Laboratory of Material Chemistry and Service Failure and Hubei Engineering Research Center for Biomaterials and Medical Protective Materials School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan Hubei 430074 P. R. ChinaYang DingKey Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education Hubei Key Laboratory of Material Chemistry and Service Failure and Hubei Engineering Research Center for Biomaterials and Medical Protective Materials School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan Hubei 430074 P. R. ChinaJian‐Cheng LaiTachin Technology Co., Ltd Beijing 100094 P. R. ChinaJinping QuKey Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education Hubei Key Laboratory of Material Chemistry and Service Failure and Hubei Engineering Research Center for Biomaterials and Medical Protective Materials School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan Hubei 430074 P. R. ChinaY. PengDepartment of Energy and Resources Engineering College of Engineering Peking University Beijing 100871 P. R. ChinaXiang LuKey Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education Hubei Key Laboratory of Material Chemistry and Service Failure and Hubei Engineering Research Center for Biomaterials and Medical Protective Materials School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan Hubei 430074 P. R. China

2025en

ABI

Аннотация

Abstract Passive daytime radiative cooling (PDRC) offers a sustainable route to reducing cooling energy consumption and greenhouse gas emissions. However, conventional PDRC materials exhibit limited cooling power (<150 W m −2 ), insufficient for growing cooling demands. While integrating phase change materials enhances cooling capacity, to balance radiative cooling, latent heat, and heat transfer performances remains challenging due to their conflicting requirements. Inspired by the light scattering mechanism of nacre‐pearl systems, hierarchically microstructured radiative‐phase change hybrid cooling (RPHC) composites with a homogeneous morphology are developed via a water pre‐removal strategy. The composite combines a multilayered microfibrillated cellulose (MFC) matrix with core–shell phase change capsules (PCCs), achieving solar reflectivity of 0.969 and mid‐infrared emissivity of 0.958. Efficient PCC integration provides a high latent heat of 132.1 J g −1 . This nacre‐pearl‐inspired design enables a record‐high PRHC power of 226 W m −2 and an average temperature reduction of 10.1 °C below ambient. Applied to building envelopes, the MFC/PCC composite reduces cooling energy use by up to 4.4%, potentially cutting global CO 2 emissions by 1.22 billion metric tons annually. Overall, this work provides innovative energy‐saving materials for energy savings and carbon neutrality.

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Идентификаторы

DOI: 10.1002/adma.202510988

Цитирования и источники

Цитирований: 2Использованных источников: 0

Показатели — AkademScholar