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Kinetics and mechanism of Ce deposition in LiCl–KCl molten salt: a computational and experimental study

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Abstract

The present study developed a finite element model to study the electrodeposition process of Ce(III) from LiCl–KCl eutectic molten salt for pyroprocessing of spent nuclear fuel. The input parameters for the model were extracted experimentally through electrochemical testing, including cyclic voltammetry, open circuit potential, linear polarization, etc. Based on the developed model, the electric field, current density, concentration and deposition thickness of Ce on the electrode during electrodeposition process were investigated. This study visualized the electrochemical deposition process of Ce in molten salt, which will not only benefit the optimization of the pyroprocessing system, but also help achieve its application into industry scale.

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Acknowledgements

The authors gratefully acknowledge the financial support from Project Number 12305395 by the National Natural Science Foundation of China, Project Number 21ZR1435400 by the Science and Technology Commission of Shanghai Municipality, and Young Elite Scientists Sponsorship Program (YESS20200327) by China Association for Science and Technology.

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Authors and Affiliations

  1. School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China

    Yuncong Ding, **nyu Zhang, **aorui Xu, Yuan Yin, Wentao Zhou & Yafei Wang

  2. Shaanxi Key Laboratory of Advanced Nuclear Energy and Technology, School of Nuclear Science and Technology, **’an Jiao Tong University, **’an, 710049, China

    Shaoqiang Guo

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  1. Yuncong Ding
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  2. **nyu Zhang
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  3. **aorui Xu
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  6. Wentao Zhou
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Correspondence to Wentao Zhou or Yafei Wang.

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Ding, Y., Zhang, X., Xu, X. et al. Kinetics and mechanism of Ce deposition in LiCl–KCl molten salt: a computational and experimental study. J Radioanal Nucl Chem (2024). https://doi.org/10.1007/s10967-024-09567-7

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