Solar Deicing Nanocoatings Adaptive to Overhead Power Lines

被引：116
作者：
Li, Yang [1 ]
Ma, Wei [1 ]
Kwon, Ye Seul [1 ]
Li, Weihong [1 ]
Yao, Shuhuai [1 ]
Huang, Baoling [1 ,2 ,3 ]
机构：
[1] Hong Kong Univ Sci & Technol, Dept Mech & Aerosp Engn, Kowloon, Clear Water Bay, Hong Kong 999077, Peoples R China
[2] Hong Kong Univ Sci & Technol, Foshan Res Inst Smart Mfg, Kowloon, Clear Water Bay, Hong Kong 999077, Peoples R China
[3] HKUST Shenzhen Hong Kong Collaborat Innovat Res I, Shenzhen 518048, Peoples R China
来源：
ADVANCED FUNCTIONAL MATERIALS | 2022年 / 32卷 / 25期
关键词：
deicing; nanocoating; photo-thermal; power lines; superhydrophobic; SURFACES; ICE;
D O I：
10.1002/adfm.202113297
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In frigid winter, the ice and snow built-up on high-voltage overhead power lines may seriously risk the reliability of electric power transmission and telecommunication systems. Green technologies for power line deicing that can effectively remove the accumulated ice or snow on the cables in a gentle way are highly desired but technically challenging due to the complex cable surfaces. Herein, this work reports a scalable solar-thermal icephobic nanocoating compatible with both flat and complex curved surfaces. The spray-coated nanocoating comprises a titanium nitride nanoparticle layer as a low-emissivity photo-thermal medium and dual-scale silica particles as a water-repellent layer even at low temperatures. Enabled by the collective effects of high-efficiency solar-thermal conversion and temperature-insensitive superhydrophobicity, the nanocoating realizes effective deicing/defrosting on power lines at frigid temperatures down to -15 degrees C. The versatility of this coating and its compatibility with mass-production processes render passive solar-driven deicing technologies promising for practical applications on most outdoor exposed surfaces.
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页数：9
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