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A novel molten-salt electrochemical cell for investigating the reduction of uranium dioxide to uranium metal by lithium using in situ synchrotron radiation

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 UO(2) to U metal in LiCl–KCl at 500°C. The electrochemical cell contains a recessed well at the bottom of the cell into which the working elec...

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Autores principales: Brown, Leon D., Abdulaziz, Rema, Jervis, Rhodri, Bharath, Vidal, Mason, Thomas J., Atwood, Robert C., Reinhard, Christina, Connor, Leigh D., Inman, Douglas, Brett, Daniel J. L., Shearing, Paul R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5330291/
https://www.ncbi.nlm.nih.gov/pubmed/28244437
http://dx.doi.org/10.1107/S1600577517000625
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author Brown, Leon D.
Abdulaziz, Rema
Jervis, Rhodri
Bharath, Vidal
Mason, Thomas J.
Atwood, Robert C.
Reinhard, Christina
Connor, Leigh D.
Inman, Douglas
Brett, Daniel J. L.
Shearing, Paul R.
author_facet Brown, Leon D.
Abdulaziz, Rema
Jervis, Rhodri
Bharath, Vidal
Mason, Thomas J.
Atwood, Robert C.
Reinhard, Christina
Connor, Leigh D.
Inman, Douglas
Brett, Daniel J. L.
Shearing, Paul R.
author_sort Brown, Leon D.
collection PubMed
description 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 UO(2) to U metal in LiCl–KCl at 500°C. The electrochemical cell contains a recessed 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 UO(2) 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 UO(2) 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.
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spelling pubmed-53302912017-03-01 A novel molten-salt electrochemical cell for investigating the reduction of uranium dioxide to uranium metal by lithium using in situ synchrotron radiation Brown, Leon D. Abdulaziz, Rema Jervis, Rhodri Bharath, Vidal Mason, Thomas J. Atwood, Robert C. Reinhard, Christina Connor, Leigh D. Inman, Douglas Brett, Daniel J. L. Shearing, Paul R. J Synchrotron Radiat Research Papers 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 UO(2) to U metal in LiCl–KCl at 500°C. The electrochemical cell contains a recessed 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 UO(2) 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 UO(2) 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. International Union of Crystallography 2017-02-16 /pmc/articles/PMC5330291/ /pubmed/28244437 http://dx.doi.org/10.1107/S1600577517000625 Text en © Leon D. Brown et al. 2017 http://creativecommons.org/licenses/by/2.0/uk/ This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.http://creativecommons.org/licenses/by/2.0/uk/
spellingShingle Research Papers
Brown, Leon D.
Abdulaziz, Rema
Jervis, Rhodri
Bharath, Vidal
Mason, Thomas J.
Atwood, Robert C.
Reinhard, Christina
Connor, Leigh D.
Inman, Douglas
Brett, Daniel J. L.
Shearing, Paul R.
A novel molten-salt electrochemical cell for investigating the reduction of uranium dioxide to uranium metal by lithium using in situ synchrotron radiation
title A novel molten-salt electrochemical cell for investigating the reduction of uranium dioxide to uranium metal by lithium using in situ synchrotron radiation
title_full A novel molten-salt electrochemical cell for investigating the reduction of uranium dioxide to uranium metal by lithium using in situ synchrotron radiation
title_fullStr A novel molten-salt electrochemical cell for investigating the reduction of uranium dioxide to uranium metal by lithium using in situ synchrotron radiation
title_full_unstemmed A novel molten-salt electrochemical cell for investigating the reduction of uranium dioxide to uranium metal by lithium using in situ synchrotron radiation
title_short A novel molten-salt electrochemical cell for investigating the reduction of uranium dioxide to uranium metal by lithium using in situ synchrotron radiation
title_sort novel molten-salt electrochemical cell for investigating the reduction of uranium dioxide to uranium metal by lithium using in situ synchrotron radiation
topic Research Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5330291/
https://www.ncbi.nlm.nih.gov/pubmed/28244437
http://dx.doi.org/10.1107/S1600577517000625
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