Abstract
A new sono-electrode geometry is discussed in this paper, in which a square electrode of millimetre dimensions is placed perpendicular to a 20 KHz ultrasonic horn probe, its centre being some 30-40 mm distant from the surface of the tip of the ultrasonic horn. It is shown that the mass transport of electroactive material to the electrode can be approximately described by that of a convective flow over a stationary plate through comparison of the experimental results with theoretical data obtained via the analytical solution of the mass transport equations describing this model. This novel sono-electrode geometry is compared with other more popular geometries introduced in the recent sonoelectrochemical literature and the relative merits of these sonotrodes are discussed with respect to their mass transport characteristics.
| Original language | English |
|---|---|
| Pages (from-to) | 1541-1547 |
| Number of pages | 7 |
| Journal | Electrochimica Acta |
| Volume | 41 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 30 Jun 1996 |
Funding
Acknowledgements-We thank the EPSRC for a student-ship for JCE and the EC for financials upport (Contract No. CHRX CT94 0475)u nder the Human Capital and Mobility Scheme. We wish to thank Dr David Walton for his valued advice. JCE thanks St Hugh’s College, Oxford for a Senior Scholarship.
Keywords
- Electrode geometries
- Flow over a plate
- Mass transport effects
- Sono-electrode
- Sonoelectrochemistry
ASJC Scopus subject areas
- General Chemical Engineering
- Electrochemistry