Details

Autor(en) / Beteiligte

• Li, Tian
• Zhai, Yao
• He, Shuaiming
• Gan, Wentao
• Wei, Zhiyuan
• Heidarinejad, Mohammad
• Dalgo, Daniel
• Mi, Ruiyu
• Zhao, Xinpeng
• Song, Jianwei
• Dai, Jiaqi
• Chen, Chaoji
• Aili, Ablimit
• Vellore, Azhar
• Martini, Ashlie
• Yang, Ronggui
• Srebric, Jelena
• Yin, Xiaobo
• Hu, Liangbing

Titel

A radiative cooling structural material

Ist Teil von

• Science (American Association for the Advancement of Science), 2019-05, Vol.364 (6442), p.760-763

Ort / Verlag

United States: The American Association for the Advancement of Science

Erscheinungsjahr

2019

Quelle

Science Online_科学在线

Beschreibungen/Notizen

• Reducing human reliance on energy-inefficient cooling methods such as air conditioning would have a large impact on the global energy landscape. By a process of complete delignification and densification of wood, we developed a structural material with a mechanical strength of 404.3 megapascals, more than eight times that of natural wood. The cellulose nanofibers in our engineered material backscatter solar radiation and emit strongly in mid-infrared wavelengths, resulting in continuous subambient cooling during both day and night. We model the potential impact of our cooling wood and find energy savings between 20 and 60%, which is most pronounced in hot and dry climates.