Decomposition of uranyl peroxo-carbonato complex ion in the presence of metal oxides in carbonate media

被引：5

作者：

Chung, Dong-Yong ^{[1
]}

Park, Min-Sung ^{[1
]}

Lee, Keun-Young ^{[1
]}

Lee, Eil-Hee ^{[1
]}

Kim, Kwang-Wook ^{[1
]}

Moon, Jei-Kwon ^{[1
]}

机构：

[1] Korea Atom Energy Res Inst, Decontaminat & Decommissioning Res Div, Taejon 305353, South Korea

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2015年 / 306卷 / 03期

基金：

新加坡国家研究基金会;

关键词：

Decomposition; Hydrogen peroxide; Uranyl peroxo-carbonato complex; Metal oxide; Carbonate solution; HYDROGEN-PEROXIDE; CATALYTIC DECOMPOSITION; NUCLEAR-FUEL; URANIUM; KINETICS; DISSOLUTION; PRECIPITATION; STABILITY; OXIDATION; RECOVERY;

D O I：

10.1007/s10967-015-4196-0

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Uranium oxide was dissolved in the form of the uranyl peroxo-carbonato complex ion, UO2(O-2)(CO3) (2) (4-) in carbonate solutions with hydrogen peroxide. When UO2(O-2)(CO3) (2) (4-) ions lose their peroxide component, they become a stable species of uranyl tricarbonato complex ion, UO2(O-2)(CO3) (2) (4-) . The uranyl peroxo-carbonato complex self-decomposed more rapidly into the uranyl tricarbonato complex ion in the presence of a metal oxide in the carbonate solution. In this study, decomposition of the uranyl peroxo-carbonato complex in a carbonate solution was investigated in the presence of several metal oxides using absorption spectroscopy.

引用

页码：761 / 768

页数：8

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