Self-Propelled Detachment upon Coalescence of Surface Bubbles

  title={Self-Propelled Detachment upon Coalescence of Surface Bubbles},
  author={Pengyu Lv and Pablo Pe{\~n}as and Hai Le The and Jan C. T. Eijkel and Albert van den Berg and Xuehua Zhang and Detlef Lohse},
  journal={Physical Review Letters},
The removal of microbubbles from substrates is crucial for the efficiency of many catalytic and electrochemical gas evolution reactions in liquids. The current work investigates the coalescence and detachment of bubbles generated from catalytic decomposition of hydrogen peroxide. Self-propelled detachment, induced by the coalescence of two bubbles, is observed at sizes much smaller than those determined by buoyancy. Upon coalescence, the released surface energy is partly dissipated by the… 
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