Conferences

Particularities of Electrochemical Production of Nano-Coating and Nano-Powders of Metals, Oxides, and Nitrides by Electrolysis of Acetonitrile at High Voltage Gradient

V.Lavrenko,
 
V.Lavrenko,
 
.Chekhovskiy
 

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Krzhizhanovsky str., 3, Kyiv, 03142, Ukraine
Powder Metallurgy - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2014, #07/08
http://www.materials.kiev.ua/article/1247

Abstract

In this study the CdО, Cd3N2, Cu, Cu2O, α-C3N4, α-Si3N4 and β- Si3N4 nano-coatings and (or) nano-powders have been obtained using the organic solvent (acetonitrile) as an electrolyte in the activated non-equlibrium electrochemical system with the use of Cd–Ni, Cu–Cu and Si–Si as corresponding cathode – anode pairs at the high voltage of electric field (400–2000 V). At the discussion of cathodic and anodic reactions mechanism with the participation of HCOOH formic acide as an electrolyte, the Khristiansen–Kramers conception of the Semenov–Hinshelwood classic kinetic theory as well as the results of previous investigations for the appropriate organic systems have been used, the latter being fulfilled by authors in the similar organic media using the methods of mass-spectroscopy and secondary ion-ion emission. It has been established that in some cases, parallel to the electrolysis reactions, on the corresponding electrodes the secondary reactions have been carried out, the latter taking place according to the mechanism of heterogeneous catalysis.


ACETONITRILE, ACTIVATION OF NON-EQULIBRIUM PROCESSES ON THE ELECTRODE–ELECTROLYTE BOUNDARIES, ELECTROLYSIS, HIGH VOLTAGES OF ELECTRIC FIELD, RECEIVING OF NANO-COATINGS AND (OR) NANO-POWDERS OF METALS, OXIDES AND NITRIDES