A Potentiometric Study of the Interaction of Zr(IV) and O(II) Ions in the LiCl-KCl Eutectic Molten Salt
A Potentiometric Study of the Interaction of Zr(IV) and O(II) Ions in the LiCl-KCl Eutectic Molten Salt
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DOI：
10.1149/1.1779332
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发表时间：
2004-09
影响因子：
3.9
通讯作者：
V. Smolenski;A. Laplace;J. Lacquement
中科院分区：
文献类型：
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作者：
V. Smolenski;A. Laplace;J. Lacquement
在823 K下，用两个铂氧电极和固体电解质膜组成的电化学电池研究了氯化锆在熔融LiCl-KCl共晶中的物理化学性质。第一个用作pO 2-指示电极，第二个用作氧泵，使我们能够通过电解来改变离子熔体的pO 2-。用O2-离子滴定Zr（IV）的氯络合物，证实了ZrOCl 2和ZrO 2的沉淀.计算了这些化合物的溶解度常数。一个Pourbaix型图，它总结了在熔体中的锆物种的属性，被确定。
The physical and chemical properties of zirconium chlorides have been studied in fused LiCl-KCl eutectic at 823 K using an electrochemical cell containing two platinum-oxygen electrodes with a solid electrolyte membrane. The first is used as pO 2- indicator electrode and the second as an oxygen pump which allows us to vary the pO 2- of the ionic melt by electrolysis. Titration of Zr(IV) chlorocomplex by O 2- ions demonstrated the precipitation of ZrOCl 2 and ZrO 2 . The solubility constants of these compounds were calculated. A Pourbaix type diagram, which summarizes the properties of zirconium species in the melt, was determined.