Redox equilibrium of the UO22+/UO2+ couple in Li2MoO4-Na2MoO4 eutectic melt at 550 °C

被引：1
|
作者：
Nagai, Takayuki [1 ]
Uehara, Akihiro [2 ]
Fujii, Toshiyuki [2 ]
Sato, Nobuaki [3 ]
Kofuji, Hirohide [1 ]
Myochin, Munetaka [1 ]
Yamana, Hajimu [2 ]
机构：
[1] Japan Atom Energy Agcy, Nucl Fuel Cycle Engn Lab, Naka, Ibaraki 3191194, Japan
[2] Kyoto Univ, Inst Res Reactor, Sen Nan, Osaka 5900494, Japan
[3] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Aoba Ku, Sendai, Miyagi 9808577, Japan
来源：
JOURNAL OF NUCLEAR MATERIALS | 2014年 / 454卷 / 1-3期
关键词：
MOLYBDATE MELTS; MOLYBDENUM OXIDES; URANYL MOLYBDATE; URANIUM-OXIDES; RECRYSTALLIZATION; GLASSES; ELECTROLYSIS; ABSORPTION; IONS; FUEL;
D O I：
10.1016/j.jnucmat.2014.07.070
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The redox equilibrium of UO22+/UO2+ couple was measured in Li2MoO4-Na2MoO4 eutectic melt at 550 degrees C by cyclic voltammetry and absorption spectrophotometry. The standard redox potential of UO22+/UO2+ couple was approximately evaluated by cyclic voltammetry. Further, the absorption spectrum and equilibrium potential were measured, repeatedly adding Lie source material into the melt containing UO2+. From the correlation between the equilibrium potential of the melt and the concentration ratio [UO22+]/[UO2+] spectrophotometrically evaluated, the standard redox potential of UO22+/UO2+ couple was determined to be -0.847 +/- 0.010 V vs. O-2/O2-. (C) 2014 Elsevier B.V. All rights reserved.
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收藏
页码：159 / 163
页数：5
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