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Highly efficient solar anti-icing/deicing via a hierarchical structured surface
Materials Horizons ( IF 12.2 ) Pub Date : 2020-05-23 , DOI: 10.1039/d0mh00636j Chenyang Wu 1, 2, 3, 4, 5 , Hongya Geng 4, 5, 6, 7, 8 , Sicong Tan 4, 7, 8, 9, 10 , Jianyong Lv 4, 5, 6, 7, 8 , Haiqiao Wang 1, 2, 3, 4 , Zhiyuan He 4, 5, 6, 7, 8 , Jianjun Wang 4, 5, 6, 7, 8
Materials Horizons ( IF 12.2 ) Pub Date : 2020-05-23 , DOI: 10.1039/d0mh00636j Chenyang Wu 1, 2, 3, 4, 5 , Hongya Geng 4, 5, 6, 7, 8 , Sicong Tan 4, 7, 8, 9, 10 , Jianyong Lv 4, 5, 6, 7, 8 , Haiqiao Wang 1, 2, 3, 4 , Zhiyuan He 4, 5, 6, 7, 8 , Jianjun Wang 4, 5, 6, 7, 8
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Solar anti-icing/deicing (SADI) is an economically-efficient method of harvesting solar energy as heat for melting and removing ice. However, SADI materials with superior sunlight harvesting performances and high deicing rate remain elusive. Herein, the 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 films exhibited efficient broadband solar light absorption and high energy transfer efficiency (90.4%). When used 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 (∼0.2 kPa) even at an ultra-low temperature of −40 °C. 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.
中文翻译：
通过分层结构化表面实现高效的太阳能除冰/除冰
太阳能除冰/除冰（SADI）是一种经济有效的方法，可以收集太阳能作为热量来融化和除冰。然而，具有优异的日光收集性能和高除冰率的SADI材料仍然难以捉摸。在此，基于简便的双模板方法证明了成功制备分层的宏观/微观结构的聚二甲基硅氧烷（PDMS）/氧化石墨烯（rGO）薄膜。制成的薄膜表现出有效的宽带太阳光吸收和高能量转移效率（90.4％）。当用作防冰/除冰材料时，这些SADI膜在一种阳光照射下（q i = 1.0 kW m -2）表现出优异的防冰/除冰性能，即长的冷冻延迟时间（t D > 2 h）和超低除冰强度（〜0.2 kPa），即使在-40°C的超低温下也是如此。在各种模拟的现实条件下，SADI表面在很大的地理差异范围内都表现出很高的除冰率（> 1.05 kg m -2 h -1）。此外，所有的霜，霜和釉（冰厚度<2 mm）都可以在300 s内轻松清除。
更新日期：2020-05-23
中文翻译：
通过分层结构化表面实现高效的太阳能除冰/除冰
太阳能除冰/除冰（SADI）是一种经济有效的方法，可以收集太阳能作为热量来融化和除冰。然而，具有优异的日光收集性能和高除冰率的SADI材料仍然难以捉摸。在此，基于简便的双模板方法证明了成功制备分层的宏观/微观结构的聚二甲基硅氧烷（PDMS）/氧化石墨烯（rGO）薄膜。制成的薄膜表现出有效的宽带太阳光吸收和高能量转移效率（90.4％）。当用作防冰/除冰材料时，这些SADI膜在一种阳光照射下（q i = 1.0 kW m -2）表现出优异的防冰/除冰性能，即长的冷冻延迟时间（t D > 2 h）和超低除冰强度（〜0.2 kPa），即使在-40°C的超低温下也是如此。在各种模拟的现实条件下，SADI表面在很大的地理差异范围内都表现出很高的除冰率（> 1.05 kg m -2 h -1）。此外，所有的霜，霜和釉（冰厚度<2 mm）都可以在300 s内轻松清除。
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