Xu Muchen, Liu Chunxiao Tracy, Kim Chang-Jin
Langmuir. 2020 Jul 21;36(28):8193-8198. doi: 10.1021/acs.langmuir.0c01289. Epub 2020 Jul 10.
Gas-trapping-typically superhydrophobic (SHPo)-surfaces are useful for underwater applications only while their plastron lasts. Because the plastron unfortunately disappears under most practical conditions, various active approaches to supply ample gas have been reported, including the semiactive SHPo surface based on self-regulated electrolysis. Here, we report two major advances: (i) a self-powered plastron restoration mechanism that obviates the need for external power; (ii) a one-step molding process to mass-manufacture semiactive SHPo surfaces. The advances clear major hurdles for real-world implementation.
气体捕获——通常是超疏水（SHPo）——表面仅在其气膜持续存在时对水下应用有用。不幸的是，在大多数实际条件下气膜会消失，因此已报道了各种供应充足气体的主动方法，包括基于自调节电解的半主动SHPo表面。在此，我们报告了两项主要进展：（i）一种无需外部电源的自供电气膜恢复机制；（ii）一种大规模制造半主动SHPo表面的一步成型工艺。这些进展清除了实际应用中的主要障碍。
