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Activating Molecules, Ions, and Solid Particles with Acoustic Cavitation
Published on: April 11, 2014
Influence of ultrasound on the kinetic parameters of electrochemical redox reactions
C G Jung1, F Chapelle, A Fontana
1Service de Chimie Générale et Carbochimie, Université Libre de Bruxelles, Brussels, Belgium.
Abstract:
The aim of this work is to determine the Tafel parameters with and without ultrasound. The total overvoltage has been corrected for diffusion by using rotating disk technique and potentiostatic extrapolation to infinite rotating speed. Three well known redox systems have been selected regardless to their different electrochemical behaviour: the quinone-hydroquinone, the Fe(II)Fe(III) chlorides and Fe(II)-Fe(III) cyanide systems. This work shows that the reversibility is higher with ultrasound only in the case of the quinone-hydroquinone system.
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