Visualization Of Self-Limiting Electrochemical Gas Generation To Recover Underwater Superhydrophobicity
2015 TRANSDUCERS - 2015 18TH INTERNATIONAL CONFERENCE ON SOLID-STATE SENSORS, ACTUATORS AND MICROSYSTEMS (TRANSDUCERS)(2015)
摘要
We develop a transparent superhydrophobic (SHPo) surface with an imbedded electrode to investigate the self-limiting gas recovery mechanism reported for a long-term SHPo state underwater [1]. The surface is made from two Teflon sheets by two hot-embossing steps that embed a metal strip in between. The self-initiation of electrochemical gas generation at liquid impalement and self-termination at full gas recovery of a microtrench is directly visualized. Furthermore, we develop a high-pressure chamber to study the mechanism at elevated hydrostatic pressures (up to 4 atm tested).
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关键词
Superhydrophobic, Electrolysis, Drag Reduction
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