Electrochemical behavior and electronic absorption spectra of uranium trivalent ions in molten LiCl-CsCl mixtures

T. Nagai, A. Uehara, T. Fujii, Nobuaki Sato, H. Yamana

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5 Citations (Scopus)

Abstract

The redox reactions and coordination circumstances of uranium trivalent ions in molten LiCl-CsCl mixtures were investigated by cyclic voltammetry and spectrophotometry. The formal redox potential, E°′(U3+|U), in LiCl-CsCl mixtures with the CsCl mole fraction of 0.2 was more positive than that in LiCl melt. The CsCl system showed the most negative E°′(U 3+|U). The electronic absorption spectra of U3+ in LiCl-CsCl mixtures showed that the intensities of absorption peaks decreased with the increase of CsCl mole fraction. The oscillator strength of the hypersensitive f-f transition, f, decreased with the increase of CsCl mole fraction.

Original languageEnglish
Pages (from-to)226-231
Number of pages6
JournalJournal of Nuclear Materials
Volume414
Issue number2
DOIs
Publication statusPublished - 2011 Jul 15

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Nuclear Energy and Engineering

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