ORALS

SESSION: MoltenWedAM-R11	Kipouros International Symposium (8th Intl. Symp. on Sustainable Molten Salt, Ionic & Glass-forming Liquids & Powdered Materials)
Wed. 30 Nov. 2022 / Room: Game
Session Chairs: Amr Henni; Session Monitor: TBA

12:45: [MoltenWedAM04] OS
Electrochemical Behaviour of Cobalt Oxide in Carbamide Melts
Sergei Devyatkin¹ ; Svetlana Kochetova² ; Alexandr Pisanenko¹ ; Ludmila Bogdanovich¹ ; ¹Institute of General and Inorganic Chemistry, Kiev, Ukraine; ²V.I. Vernadsky Institute of General and Inorganic Chemistry of the National Academy of Sciences of Ukraine, Kyiv, Ukraine;
Paper Id: 12 [Abstract]

Carbamide melts have found applications as electrolytes for electrochemical treatment of metals [1, 2]. The possibility of electrodeposition of cobalt from carbamide melts at 408 K has been examined for tungsten as an example. When studying the electrochemical behaviour of cobalt oxide in molten carbamide, it can be concluded that maximum limiting currents are typical of the system (NH2)2CO-CoO. Cobalt coatings on nickel cathodes have been obtained by the electrolysis of the molten system (NH2)2CO-CoO at current densities of 20-30 mA/cm².

References:
[1] Klochko M.A., Strelnikov A.A. 1960. Study of electrical conductivity and viscosity in the
system ammonium nitrate – urea. In: Russian Journal of Inorganic Chemistry. Volume
10. p. 2483-2490.
[2] Tumanova N.Kh., Devyatkin C.V. Boiko O.I. 2004. Refractory metals electrochemistry
in ion and ion–organic melts. In: Ukrainian Chemical Journal. Volume 7/8. p. 78-84.