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.

引用

页码：159 / 163

页数：5

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