Lu Tonghui, Li Xianglin, Lu Mengying, Lv Wenhao, Liu Wenzhuo, Dong Xuanchen, Liu Zhe, Xie Shangzhen, Lv Song
School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063, China.
School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430063, China.
iScience. 2024 Oct 10;27(11):111086. doi: 10.1016/j.isci.2024.111086. eCollection 2024 Nov 15.
Anti-icing and de-icing are vital for infrastructure maintenance. While carbon-based materials with photothermal or electrothermal effects have advanced, they face challenges like environmental dependence, poor resistance, high energy consumption, and complex manufacturing. Here, we developed a scalable, hybrid metamaterial driven by photothermal/electrothermal for all-weather anti-icing/de-icing. Its nanostructured surface delays icing by 360 s at -30°C, breaking records across a wide temperature range. The porous structure enhances light absorption, achieving a delayed icing time of 2500 s at -20°C under one sunlight. The graphene film's high conductivity allows rapid de-icing with 1.6W power. After 720 h of outdoor exposure, the metamaterial retained a contact angle above 150°, confirming durability. More critically, we have demonstrated that the metamaterial can be manufactured on a large scale, which is essential for improving the economics of the anti-icing/de-icing sector.
防冰和除冰对于基础设施维护至关重要。虽然具有光热或电热效应的碳基材料已经取得了进展，但它们面临着诸如环境依赖性、抗性差、能耗高和制造复杂等挑战。在此，我们开发了一种可扩展的、由光热/电热驱动的混合超材料，用于全天候防冰/除冰。其纳米结构表面在-30°C时可将结冰延迟360秒，在很宽的温度范围内打破了记录。多孔结构增强了光吸收，在一个太阳光下-20°C时实现了2500秒的延迟结冰时间。石墨烯薄膜的高导电性允许以1.6W的功率快速除冰。经过720小时的户外暴露后，超材料的接触角保持在150°以上，证实了其耐久性。更关键的是，我们已经证明这种超材料可以大规模制造，这对于提高防冰/除冰行业的经济性至关重要。
