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AC Electrokinetic Phenomena Generated by Microelectrode Structures
Published on: July 28, 2008
Ultrasonic effects on electroorganic processes. Part 27. Electroreduction of acrylonitrile at suspended lead
Ryosuke Asami1, Mahito Atobe, Toshio Fuchigami
1Department of Electronic Chemistry, Interdisciplinary Graduate School of Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan. atobe@echem.titech.ac.jp
Abstract:
Ultrasonic effect on the electroreduction of acrylonitrile at suspended lead particle-electrode was examined. The product selectivity for adiponitrile, which was formed as the corresponding hydrodimeric product along with propionitrile as the hydromonomeric one in the cathodic reduction of acrylonitrile, was increased by addition of lead particles as a particle-electrode, and moreover the selectivity was further increased under ultrasonication. This ultrasonic effect is rationalized as due to not only mass transport of lead particles to the feeder cathode but also an increase in the effective surface area of particle-electrode by ultrasonic dispersion. A mechanism for the ultrasonic effect is discussed in detail on the basis of the reaction system.
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