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Highly efficient solar anti-icing/deicing via hierarchical structured surface


Solar anti-icing/deicing (SADI) is an economically-efficient method of harvesting solar energy as heat for melting and removing ice. However, the SADI materials with superior sunlight harvesting performances and high deicing rate remain elusive. Herein, successful preparation of hierarchically macro/micro-structured polydimethylsiloxane (PDMS)/reduced graphene oxide (rGO) films was demonstrated based on a facile dual-template method. The as-fabricated film exhibited efficient broadband solar light absorption and high energy transfer efficiency (90.4%). When employed as anti-icing/deicing materials, these SADI films exhibited excellent anti-icing/deicing performances under one sun illumination (qi = 1.0 kW m−2), i.e., long freezing delay time (tD > 2 h) and ultra-low deicing strength (τice ~ 0.2 kPa) even at ultra-low temperature of −40 ℃. The SADI surfaces showed a high deicing rate (> 1.05 Kg m−2 h−1) under various simulated realistic conditions over a wide range of geographical differences. Moreover, all the frost, rime, and glaze (ice thickness < 2 mm) could be easily removed within 300 s.

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Article information

17 Apr 2020
22 May 2020
First published
23 May 2020

Mater. Horiz., 2020, Accepted Manuscript
Article type

Highly efficient solar anti-icing/deicing via hierarchical structured surface

C. Wu, H. Geng, S. Tan, H. Wang, J. Lv, Z. He and J. Wang, Mater. Horiz., 2020, Accepted Manuscript , DOI: 10.1039/D0MH00636J

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