抄録
We have demonstrated successfully that direct electrolysis of water-insoluble substrates like n-octylamine proceeded very smoothly in aqueous electrolytes using acoustic emulsification. Ultrasonication of the water-insoluble substrate-aqueous electrolyte mixtures allowed the formation of microemulsions without added surfactants, and smooth electrolysis in the 'emulsions took place via direct electron transfer between the electrode and the water-insoluble substrate droplets. In this kind of biphasic electrontransfer system, the supporting electrolyte should be dissolved not only in the aqueous phase but also in the substrate droplets and should contribute to the formation of an electric bilayer inside the droplets. Hence, when the droplet contained a small amount of supporting electrolytes, direct electron transfer was suppressed and consequently current efficiency decreased drastically.
