Published December 2018 | Version v1
Book Metadata-only

The UO2- MeO2 (Me = Th, Pu, Zr) cathode crystalline deposits formation during the melts electrolysis

Creators

  • 1. Institute of High-Temperature Electrochemistry, Ural Branch of RAS, Akademicheskaya 20, Yekaterinburg 620137 (Russian Federation)
  • 2. Ural Federal University, Mira st.19, Yekaterinburg 620002 (Russian Federation)

Description

The crystalline UO2-ThO2 (30-50 mol. %), UO2-PuO2 (6 - 72 mol. %), UO2-ZrO2 (0.1 - 98 mol. %) cathode deposits were obtained at the electrolysis of the (NaCl-KCl)-UO2Cl2-MeCl4 melt, where Me=Th, Pu, Zr. The mechanism of their formation was analyzed. The influence of the MeCl4 concentration in the melt and the initial electrolysis current density on the average MeO2 concentration in the UO2-MeO2 cathode deposits was studied. The MeO2 fraction concentration decreased consistently as the MeCl4 concentration decreased and the electrolysis current density increased. The electrolytic crystalline UO2-MeO2 cathode deposit is formed by two simultaneous reactions at the electrode: electrolytic reduction of UO22+ to UO2 and exchange reaction between UO2 and Me4+ ions, which are present in the molten (NaCl-KCl) -UO2Cl2-MeCl4 electrolyte. (author)

Part of:
Fast Reactors and Related Fuel Cycles: Next Generation Nuclear Systems for Sustainable Development (FR17). Proceedings of an International Conference. Companion CD-ROM

Additional details

Identifiers

URL
https://www-pub.iaea.org/books/IAEABooks/13414/Fast-Reactors-and-Related-Fuel-Cycles-Next-Generation-Nuclear-Systems-for-Sustainable-Development-FR17; http://www.iaea.org/books;

Publishing Information

Publisher
IAEA
Imprint Place
Vienna (International Atomic Energy Agency (IAEA))
ISBN
978-92-0-108618-1
Imprint Title
Fast Reactors and Related Fuel Cycles: Next Generation Nuclear Systems for Sustainable Development (FR17). Proceedings of an International Conference. Companion CD-ROM
Imprint Pagination
[1 CD-ROM]
Series
Proceedings Series
Journal Page Range
8 p.
ISSN
0074-1884

Conference

Title
International Conference on Fast Reactors and Related Fuel Cycles: Next Generation Nuclear Systems for Sustainable Development
Acronym
FR17
Dates
26-29 Jun 2017
Place
Yekaterinburg (Russian Federation)

INIS

Country of Publication
International Atomic Energy Agency (IAEA)
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
51006243
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S11: NUCLEAR FUEL CYCLE AND FUEL MATERIALS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CATHODES; CONCENTRATION RATIO; CURRENT DENSITY; DEPOSITS; ELECTROLYSIS; ELECTROLYTES; MELTING; PLUTONIUM IONS; PLUTONIUM OXIDES; POTASSIUM CHLORIDES; REDUCTION; SODIUM CHLORIDES; THORIUM IONS; THORIUM OXIDES; URANIUM DIOXIDE; URANYL CHLORIDES; ZIRCONIUM IONS; ZIRCONIUM OXIDES
Descriptors DEC
ACTINIDE COMPOUNDS; ALKALI METAL COMPOUNDS; CHALCOGENIDES; CHARGED PARTICLES; CHEMICAL REACTIONS; CHLORIDES; CHLORINE COMPOUNDS; DIMENSIONLESS NUMBERS; ELECTRODES; HALIDES; HALOGEN COMPOUNDS; IONS; LYSIS; OXIDES; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; PLUTONIUM COMPOUNDS; POTASSIUM COMPOUNDS; POTASSIUM HALIDES; SODIUM COMPOUNDS; SODIUM HALIDES; THORIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSURANIUM COMPOUNDS; URANIUM COMPOUNDS; URANIUM OXIDES; URANYL COMPOUNDS; URANYL HALIDES; ZIRCONIUM COMPOUNDS

Optional Information

Notes
3 figs., 19 refs., 2 tabs. Imprint:refs., figs., tabs.
Secondary number(s)
IAEA-CN--245-379