结冰
超压
微流控
航程(航空)
材料科学
纳米技术
机械
毛细管作用
化学物理
物理
气象学
复合材料
热力学
作者
Lizhong Wang,Guochen Jiang,Dongyu Zhu,Ze Tian,Changhao Chen,Xinyu Hu,Rui Peng,Daizhou Li,Hongjun Zhang,Huanyu Zhao,Peixun Fan,Minlin Zhong
出处
期刊:Small
[Wiley]
日期:2023-06-13
卷期号:19 (41)
被引量:2
标识
DOI:10.1002/smll.202302339
摘要
Liquid fluidity is a most key prerequisite for a broad range of technologies, from energy, fluid machineries, microfluidic devices, water, and oil transportation to bio-deliveries. While from thermodynamics, the liquid fluidity gradually diminishes as temperature decreases until completely solidified below icing points. Here, self-driven droplet motions are discovered and demonstrated occurring in icing environments and accelerating with both moving distances and droplet volumes. The self-driven motions, including self-depinning and continuous wriggling, require no surface pre-preparation or energy input but are triggered by the overpressure spontaneously established during icing and then continuously accelerated by capillary pulling of frosts. Such self-driven motions are generic to a broad class of liquid types, volumes, and numbers on various micro-nanostructured surfaces and can be facilely manipulated by introducing pressure gradients spontaneously or externally. The discovery and control of self-driven motions below icing points can greatly broaden liquid-related applications in icing environments.
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