par Reisse, Jacques 
;Caulier, Thibaud ;Deckerkheer, C.;Fabre, Omer ;Vandercammen, Juliana ;Delplancke, Jean-Luc ;Winand, René
Référence Ultrasonics sonochemistry, 3, 3, page (S147-S151)
Publication Publié, 1996
;Caulier, Thibaud ;Deckerkheer, C.;Fabre, Omer ;Vandercammen, Juliana ;Delplancke, Jean-Luc ;Winand, René Référence Ultrasonics sonochemistry, 3, 3, page (S147-S151)
Publication Publié, 1996
Article révisé par les pairs
| Résumé : | The measurement of a sonochemical effect requires a comparison of the reaction rates with and without ultrasound when all other parameters remain constant. Various artefacts make this last condition difficult to fulfil. Some of them are discussed in the case of the Diels-Alder reaction. To evidence a frequency effect in sonochemistry, the reaction rates have to be compared by changing the frequency alone and maintaining all the other parameters constant. The major difficulty in fulfilling this condition led us to use a relative method where a couple of reactions were studied at 20 kHz and 1.7 MHz. The third topic concerns the effect of ultrasound on various electrochemical reactions for the purpose of producing nano- to microparticles of metals, oxides and semiconductors. |
