Cathodic processes of platinum electrodes during Na/sub 2/MoO/sub 3/-MoO/sub 3/ melt electrolysis
Journal Article
·
· Sov. Electrochem. (Engl. Transl.); (United States)
OSTI ID:5263955
It has been shown previously that during polarization of a platinum cathode in the Na/sub 2/MoO/sub 4/-MoO/sub 3/ system the evolution of molybdenum dioxide is preceded by a wave which, in the authors' opinion, can be attributed to changes in ionic composition of the melt layer next to the cathode, and in particular to the appearance of lower, reduced forms of the ions. In tungstate melts, the evolution of bronze or other products is preceded by alloy electrolysis of molybdate melts. The present work was undertaken in order to elucidate the conditions under which a platinum electrode can be used as an indicator electrode for electrochemical investigations in molybdate melts. The experiments used ''chemically pure'' MoO/sub 3/ and ''analytically pure'' Na/sub 2/MoO/sub 4/.2H/sub 2/O. On the basis of the investigation it is concluded that alloys of platinum with molybdenum are formed at the cathode when the melt contains relatively small amounts of MoO/sub 3/.
- Research Organization:
- Institute of Electrochemistry, Ural Scientific Center, Academy of Sciences of the USSR, Sverdlovsk
- OSTI ID:
- 5263955
- Journal Information:
- Sov. Electrochem. (Engl. Transl.); (United States), Journal Name: Sov. Electrochem. (Engl. Transl.); (United States) Vol. 21:3; ISSN SOECA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400* -- Electrochemistry
ALKALI METAL COMPOUNDS
ALLOYS
CATHODES
CHALCOGENIDES
CHEMICAL REACTION KINETICS
ELECTRODES
ELECTROLYSIS
ELECTROMETALLURGY
ELEMENTS
INTERMETALLIC COMPOUNDS
KINETICS
LYSIS
METALLURGY
METALS
MOLTEN SALTS
MOLYBDATES
MOLYBDENUM ALLOYS
MOLYBDENUM COMPOUNDS
MOLYBDENUM OXIDES
OXIDES
OXYGEN COMPOUNDS
PLATINUM
PLATINUM ALLOYS
PLATINUM METAL ALLOYS
PLATINUM METALS
POTENTIOMETRY
REACTION KINETICS
REFRACTORY METAL COMPOUNDS
SALTS
SODIUM COMPOUNDS
TITRATION
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
VOLTAMETRY
400400* -- Electrochemistry
ALKALI METAL COMPOUNDS
ALLOYS
CATHODES
CHALCOGENIDES
CHEMICAL REACTION KINETICS
ELECTRODES
ELECTROLYSIS
ELECTROMETALLURGY
ELEMENTS
INTERMETALLIC COMPOUNDS
KINETICS
LYSIS
METALLURGY
METALS
MOLTEN SALTS
MOLYBDATES
MOLYBDENUM ALLOYS
MOLYBDENUM COMPOUNDS
MOLYBDENUM OXIDES
OXIDES
OXYGEN COMPOUNDS
PLATINUM
PLATINUM ALLOYS
PLATINUM METAL ALLOYS
PLATINUM METALS
POTENTIOMETRY
REACTION KINETICS
REFRACTORY METAL COMPOUNDS
SALTS
SODIUM COMPOUNDS
TITRATION
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
VOLTAMETRY