Chemical Stability of Conductive Ceramic Anodes in LiCl-Li2O Molten Salt for Electrolytic Reduction in Pyroprocessing

被引：10

作者：

Kim, Sung-Wook ^{[1
,2
]}

Kang, Hyun Woo ^{[1
]}

Jeon, Min Ku ^{[1
,2
]}

Lee, Sang-Kwon ^{[1
]}

Choi, Eun-Young ^{[1
]}

Park, Wooshin ^{[1
]}

Hong, Sun-Seok ^{[1
]}

Oh, Seung-Chul ^{[1
]}

Hur, Jin-Mok ^{[1
]}

机构：

[1] Korea Atom Energy Res Inst, Nucl Fuel Cycle Proc Dev Grp, 989-111 Daedeok Daero, Daejeon 34057, South Korea

[2] Univ Sci & Technol, Dept Quantum Energy Chem Engn, 217 Gajeong Ro, Daejeon 34113, South Korea

来源：

NUCLEAR ENGINEERING AND TECHNOLOGY | 2016年 / 48卷 / 04期

基金：

新加坡国家研究基金会;

关键词：

Anode; Conductive Ceramics; Electrolytic Reduction; Lanthanum Strontium Manganese Oxide; Molten Salt; Pyroprocessing; Spent Oxide Fuels; ELECTROCHEMICAL REDUCTION;

D O I：

10.1016/j.net.2016.03.002

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Conductive ceramics are being developed to replace current Pt anodes in the electrolytic reduction of spent oxide fuels in pyroprocessing. While several conductive ceramics have shown promising electrochemical properties in small-scale experiments, their long-term stabilities have not yet been investigated. In this study, the chemical stability of conductive La0.33Sr0.67MnO3 in LiCl-Li2O molten salt at 650 degrees C was investigated to examine its feasibility as an anode material. Dissolution of Sr at the anode surface led to structural collapse, thereby indicating that the lifetime of the La0.33Sr0.67MnO3 anode is limited. The dissolution rate of Sr is likely to be influenced by the local environment around Sr in the perovskite framework. Copyright (C) 2016, Published by Elsevier Korea LLC on behalf of Korean Nuclear Society.

引用

页码：997 / 1001

页数：5

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