A study on the effect of ultrasound on electrochemical phenomena.
We have employed microelectrodes in order to resolve single transient cavitation events. High time resolution studies of individual current time transients were shown. Distance and temperature dependencies proved to be in agreement with both the acoustic pressure field generated by the ultrasonic horn and cavitation bubble collapse violence with decreasing vapour pressure within the bubble, respectively. Measurements of electrode kinetics at the point of impact of the transient events were shown for the first time by the employment of sampled voltammetry.
Electrochemistry Group, Department of Chemistry, University of Southampton, Highfield, UK. prb2@soton.ac.uk
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Birkin
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Silva-Martinez