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Sonoelectrochemistry: The effects of ultrasound on organic electrochemical reduction

✍ Scribed by Alex Durant; Hélène François; Jacques Reisse; Andrée Kirsch-DeMesmaeker

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
771 KB
Volume
41
Category
Article
ISSN
0013-4686

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✦ Synopsis

The influence of ultrasound on benzaldehyde and benzoquinone electroreduction in various solvents has been investigated with a new type of sonoelectroreactor characterized by the working electrode acting also as the sonotrode. Both cyclic voltammetry and electrolysis at constant applied potential suggest that the electrode-solution interface and the mass transport rate are considerably affected by ultrasonic irradiation. Rates of production of reduced organic compounds are generally enhanced oiu an increase of current intensity but no switch of reaction mechanism due to ultrasound is observed.

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Organic electrochemical mechanisms—II. Effects of tetra-n-alkylammonium ions on the polarographic reductions of organic depolarizers
✍ J.P. Petrovich 📂 Article 📅 1967 🏛 Elsevier Science 🌐 English ⚖ 453 KB

The reduction potentials, Ells, of ethyl cinnamate, ethyl crotonate, triphenylcyanopropylphosphonium bromide and cycle-octatetraene have been determined polarographically in dimethylfor-man-ride solvent as a function of the size of the tetra-n-alkylammonium cation used as a supporting electrolyte.