Brown, LD;
Abdulaziz, R;
Jervis, R;
Bharath, V;
Mason, TJ;
Atwood, RC;
Reinhard, C;
... Shearing, PR; + view all
(2017)
A novel molten-salt electrochemical cell for investigating the reduction of uranium dioxide to uranium metal by lithium using in situ synchrotron radiation.
Journal of Synchrotron Radiation
, 24
(2)
pp. 439-444.
10.1107/S1600577517000625.
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Abstract
A novel electrochemical cell has been designed and built to allow for in situ energy-dispersive X-ray diffraction measurements to be made during reduction of UO2 to U metal in LiCl-KCl at 500C. The electrochemical cell contains arecessed well at the bottom of the cell into which the working electrode sits, reducing the beam path for the X-rays through the molten-salt and maximizing the signal-to-noise ratio from the sample. Lithium metal was electrodeposited onto the UO2 working electrode by exposing the working electrode to more negative potentials than the Li deposition potential of the LiCl-KCl eutectic electrolyte. The Li metal acts as a reducing agent for the chemical reduction of UO2 to U, which appears to proceed to completion. All phases were fitted using Le Bail refinement. The cell is expected to be widely applicable to many studies involving molten-salt systems.
| Type: | Article |
|---|---|
| Title: | A novel molten-salt electrochemical cell for investigating the reduction of uranium dioxide to uranium metal by lithium using in situ synchrotron radiation |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1107/S1600577517000625 |
| Publisher version: | https://doi.org/10.1107/S1600577517000625 |
| Language: | English |
| Additional information: | © Leon D. Brown et al. 2017. This work is under Creative Commons Licence CC-BY-2.0 https://creativecommons.org/licenses/by/2.0/uk/ |
| Keywords: | Cell design; molten-salt reduction; spent fuel reprocessing; energy-dispersive X-ray diffraction. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1545033 |
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