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Title: Protecting ice from melting under sunlight via radiative cooling

Journal Article · · Science Advances

As ice plays a critical role in various aspects of life, from food preservation to ice sports and ecosystem, it is desirable to protect ice from melting, especially under sunlight. The fundamental reason for ice melt under sunlight is related to the imbalanced energy flows of the incoming sunlight and outgoing thermal radiation. Therefore, radiative cooling, which can balance the energy flows without energy consumption, offers a sustainable approach for ice protection. Here, we demonstrate that a hierarchically designed radiative cooling film based on abundant and eco-friendly cellulose acetate molecules versatilely provides effective and passive protection to various forms/scales of ice under sunlight. This work provides inspiration for developing an effective, scalable, and sustainable route for preserving ice and other critical elements of ecosystems.

Research Organization:
Stanford University, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC); National Key Research and Development Program of China; National Natural Science Foundation of China; Natural Science Foundation of Jiangsu Province; Central Universities; Minister of Science and Technology of China
Grant/Contract Number:
FG02-07ER46426
OSTI ID:
1904634
Journal Information:
Science Advances, Journal Name: Science Advances Journal Issue: 6 Vol. 8; ISSN 2375-2548
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
English

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