...
首页> 外文期刊>Electroanalysis >Spectroelectrochemistry of EuCl3 in Four Molten Salt Eutectics; 3 LiCl-NaCl, 3 LiCl-2 KCl, LiCl-RbCl, and 3 LiCl-2 CsCl; at 873 K
【24h】

Spectroelectrochemistry of EuCl3 in Four Molten Salt Eutectics; 3 LiCl-NaCl, 3 LiCl-2 KCl, LiCl-RbCl, and 3 LiCl-2 CsCl; at 873 K

机译:四种熔融盐共晶中EuCl3的光谱电化学3 LiCl-NaCl,3 LiCl-2 KCl,LiCl-RbCl和3 LiCl-2 CsCl;在873 K

获取原文
获取原文并翻译 | 示例
           

摘要

Key electrochemical properties affecting pyroprocessing of nuclear fuel were examined in four eutectic melts using Eu3+/2+ as a representative probe. We report the electrochemical and spectroelectrochemical behavior of EuCl3 in four molten salt eutectics (3 LiCl-NaCl, 3 LiCl-2 KCl, LiCl @ RbCl and 3 LiCl-2 CsCl) at 873 K. Cyclic voltammetry was used to determine the reduction potential for Eu3+/2+ and the applied potentials for spectroelectrochemistry. Single step chronoabsorptometry and thin-layer spectroelectrochemistry were used to obtain the number of electrons transferred, reduction potentials and diffusion coefficients for Eu3+ in each eutectic melt. The reduction potentials determined by thin-layer spectroelectrochemistry were essentially the same as those obtained using cyclic voltammetry. The diffusion coefficient for Eu3+ was the largest in the 3 LiCl-NaCl melt, showed a negative shift in the 3 LiCl-2 KCl melt, and was the smallest in the LiCl-RbCl and 3 LiCl-2 CsCl eutectic melts. The basic one-electron reversible electron transfer for Eu3+/2+ was not affected by melt composition.
机译:使用Eu3 + / 2 +作为代表性探针,在四种低共熔熔体中研究了影响核燃料热解的关键电化学性能。我们报告了873 K下EuCl3在四种熔融盐共晶(3 LiCl-NaCl,3 LiCl-2 KCl,LiCl @ RbCl和3 LiCl-2 CsCl)中的电化学和光谱电化学行为。循环伏安法用于确定Eu3 + / 2 +以及光谱电化学的施加电势。单步计时吸收法和薄层光谱电化学用于获得转移的电子数量,每个共晶熔体中Eu3 +的还原电势和扩散系数。通过薄层光谱电化学测定的还原电位与使用循环伏安法获得的还原电位基本相同。 Eu 3+的扩散系数在3 LiCl-NaCl熔体中最大,在3 LiCl-2 KCl熔体中显示负向偏移,在LiCl-RbCl和3 LiCl-2 CsCl共熔体中最小。 Eu3 + / 2 +的基本单电子可逆电子转移不受熔体组成的影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号