Highly efficient solar anti-icing/deicing: Via a hierarchical structured surface

Chenyang Wu; Hongya Geng; Sicong Tan; Jianyong Lv; Haiqiao Wang; Zhiyuan He; Jianjun Wang

doi:10.1039/d0mh00636j

Highly efficient solar anti-icing/deicing: Via a hierarchical structured surface

Chenyang Wu, Hongya Geng, Sicong Tan, Jianyong Lv, Haiqiao Wang^*, Zhiyuan He^*, Jianjun Wang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

136 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	2097-2104
Number of pages	8
Journal	Materials Horizons
Volume	7
Issue number	8
DOIs	https://doi.org/10.1039/d0mh00636j
Publication status	Published - Aug 2020
Externally published	Yes

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title = "Highly efficient solar anti-icing/deicing: Via a hierarchical structured surface",

abstract = "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.",

author = "Chenyang Wu and Hongya Geng and Sicong Tan and Jianyong Lv and Haiqiao Wang and Zhiyuan He and Jianjun Wang",

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year = "2020",

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T1 - Highly efficient solar anti-icing/deicing

T2 - Via a hierarchical structured surface

AU - Wu, Chenyang

AU - Geng, Hongya

AU - Tan, Sicong

AU - Lv, Jianyong

AU - Wang, Haiqiao

AU - He, Zhiyuan

AU - Wang, Jianjun

PY - 2020/8

Y1 - 2020/8

N2 - 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.

AB - 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.

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Highly efficient solar anti-icing/deicing: Via a hierarchical structured surface

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