SC6 Serguei Kuznetsov

Short Course on 

“Electrochemistry for Synthesis of Functional Materials in Molten Salts”
by Sergey Kuznetsov
Apatity, Russia

10:00 – 10:30 Registration
10:30 – 11:30 Session 1. Molten Salts. Preparation of halide melts. Determination of impurities in melts. Container materials. Working and counter electrodes. Reference electrodes. The electrochemical cell design.
11:30 – 11:45 Coffee break
11:45 – 12:45 Session 2. Electrochemistry and Chemistry. Electrochemical transient techniques. Diagnostic criteria for electrochemical processes. Determination of electrochemical and thermodynamic properties in molten salts. Electrochemical methods for study of chemical reactions. Reactions of metal-salt and disproportionation. Basicity of molten salts and stabilization of highest oxidation states of d and f-elements. Electrochemistry of lanthanides and actinides and recycling of spent nuclear fuel.
12:45 – 14:00 Lunch break (lunch not included)
14:00 – 15:00 Session 3. Refractory metals. Electrochemistry of refractory metals. Electrowinning and electrorefining of refractory metals. Electrochemical synthesis of novel compounds of niobium and tantalum. Materials for oil, chemical and medicine industries: corrosion resistance coatings from niobium and tantalum obtained by stationary and pulse electrolysis.
15:00 – 15:15 Coffee break
15:15 – 16:15 Session 4. Functional Materials. Materials for aerospace industry: heat resistant coatings from hafnium and niobium-hafnium alloys on borosiliconizing graphite with the temperature of exploitation 1700-20000C, long conductors from copper alloy with niobium coating, high temperature solder copper-hafnium.
Multifunctional materials: carbides, borides and silicides of refractory metals.
Materials for hydrogen power: new generation of catalytic coatings and novel microstructured reactor for the water-gas reaction, alloys on the base of titanium for hydrogen storage, composite material MoSi2-MoB4 for protection of molybdenum microreactor from oxidation in an air-water mixture.
Material for powder metallurgy: titanium and niobium coatings on the glass- ceramic shells for hot isostatic pressing.
Nanomaterials.

 Speaker

Prof., Dr. Sergey Kuznetsov is a head of the laboratory High Temperature Chemistry and Electrochemistry at the Institute Chemistry, Kola Science Centre RAS. He is a professor of Murmansk Technical University.

Sergey Kuznetsov holds a PhD degree in metallurgical engineering (Leningrad, Russia) and a DSc degree in Electrochemistry (Institute of High Temperature Electrochemistry RAS, Ekaterinburg). His research interests include electrochemistry of refractory and rare-earth metals in molten salts, chemical reactions in melts, electrometallurgy, recycling of spent nuclear fuel, electrochemical synthesis, nanotechnology. He served as a visiting scientist and professor in the Universities and Institutes of Hungary (1995-1998), Norway (1997), Germany (1999-2000), Japan (2001), France (1998-2008). He read invited lectures in the Universities of many countries and for NATO-ASI students (Turkey, 2001) and has joint publications with scientists from 12 countries.