ABSTRACT
The many benefits of power ultrasound in chemical processes are well documented and have been investigated and exploited in a variety of fields in chemical synthesis including electrosynthesis. A number of experimental arrangements have been used for the introduction of ultrasound into an electrosynthetic system. The most straight forward way of sonoelectrosynthesis can be realized by immersion of an electrochemical cell into an ultrasonic cleaning bath. The description of mass transport phenomena in electrochemical processes under ultrasonication has been the subject of many papers and a stepwise development of better understanding. Three major contributions to the mass transport were macroscopic acoustic streaming and more localized microjetting resulting from cavitational collapse of bubbles near the electrode surface. In the case for the preparative electrosynthesis, the overall mass transfer promotion by ultrasonication provides an increase in the current efficiency and/or the yield.
