The application of the spectroelectrochemical method in the studies of molybdenum, tungsten, and uranium in chloride melts

Volkovich, Vladimir A.; Vasin, B. D.; Danilov, D. A.; Aleksandrov, Denis E.

doi:10.1134/s1023193510060078

Cited by 2 publications

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“…This additional selectivity comes from the spectroscopic change that is often associated with a change in oxidation state that occurs in the electrochemical window of interest ,. Most of the research that involves spectroelectrochemistry on actinides and lanthanides in molten salts has been performed on U ,, Np ,, Pu and Eu ,; it has also been used to monitor the formation of oxychloride species . Spectroelectrochemistry is also capable of determining the diffusion coefficients of species in solution by monitoring the absorbance change over time during electrolysis.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2016

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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.

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Section: Introductionmentioning

confidence: 99%

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

et al. 2016

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Determination of coordination form of tungsten ion in molten alkali chloride by electrochemical method

Feng

Zhang

et al. 2022

Journal of Molecular Liquids

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The application of the spectroelectrochemical method in the studies of molybdenum, tungsten, and uranium in chloride melts

Cited by 2 publications

References 4 publications

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

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

Determination of coordination form of tungsten ion in molten alkali chloride by electrochemical method

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The application of the spectroelectrochemical method in the studies of molybdenum, tungsten, and uranium in chloride melts

Cited by 2 publications

References 4 publications

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

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

Determination of coordination form of tungsten ion in molten alkali chloride by electrochemical method

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Product

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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

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