A synergistic coordination-reduction interface for electrochemical reductive extraction of uranium with low impurities from seawater.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 40016212.
- Also identified by DOI 10.1038/s41467-025-57113-0 and PMC identifier 11868504.
- Licence recorded as CC BY-NC-ND.
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Abstract
Electrochemical extraction of uranium from seawater is a promising strategy for the sustainable supply of nuclear fuel, whereas the current progress suffers from the co-deposition of impurities. Herein, we construct a synergistic coordination-reduction interface in CMOS@NSF, achieving electrochemical extraction of black UO<sub>2</sub> product from seawater. The internal sulfur of CoMoOS tailors the electron distribution, resulting in the electron accumulation of terminal O sites for strong uranyl binding. Meanwhile, the interfacial connection of CoMoOS with Ni<sub>3</sub>S<sub>2</sub> accelerates the electron transfer and promoted the reductive properties. Such synergistic coordination-reduction interface ensures the formation and preservation of tetravalent uranium, preventing the co-deposition of alkalis in crystalline transformation. From natural seawater, CMOS@NSF exhibits an electrochemical extraction capacity of 2.65 mg g<sup>-1</sup> d<sup>-1</sup> with black UO<sub>2</sub> solid products as final products. This work provides an efficient strategy for the electrochemical uranium extraction from seawater with low impurities.