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DOE OSTI · 2421949

Selective heterogeneous capture and release of actinides using carborane-functionalized electrodes

Mattejat, Maxwell·Ménard, Gabriel
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Abstract

Here we report the heterogenization of molecular, electrochemically switchable ortho-substituted carboranes ( PO Cb, PO Cb-Pyr) for selective metal capture. Films of PO Cb and PO Cb-Pyr on glassy carbon and carbon fiber (CF) electrodes demonstrated heterogeneous electrochemical behaviour that was enhanced by the inclusion of single-walled carbon nanotubes (CNTs). Galvanostatically charged CF|CNT| PO Cb and CF|CNT| PO Cb-Pyr electrodes selectively captured and released actinides (Th 4+ , UO 2 2+ ) from mixed solutions containing alkali (Cs + ), lanthanide (Nd 3+ , Sm 3+ ) and actinide (Th 4+ , UO 2 2+ ) metal ions.

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Mattejat, Maxwell, Ménard, Gabriel. 2023-07-20. Selective heterogeneous capture and release of actinides using carborane-functionalized electrodes. https://doi.org/10.1039/d3cc02135a

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