LiMn 2 O 4 Nanoparticles In Situ Embedded in Carbon Networks for Lithium Extraction from Brine via Hybrid Capacitive Deionization
Highly selective and efficient extraction of lithium from brine is considered a promising strategy to alleviate the imbalance between supply and demand of lithium resources. However, it is still challenging for lithium ions (Li ) recovery from brine. In this work, LiMn O nanoparticles embedded in si...
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Veröffentlicht in: | ACS applied materials & interfaces 2025-01 |
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Hauptverfasser: | , , , , , , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Highly selective and efficient extraction of lithium from brine is considered a promising strategy to alleviate the imbalance between supply and demand of lithium resources. However, it is still challenging for lithium ions (Li
) recovery from brine. In this work, LiMn
O
nanoparticles embedded in situ in carbon networks (LMO-C) derived from metal-organic frameworks by incomplete calcination have been developed for lithium extraction from brine via the hybrid capacitive deionization (HCDI) process. The adsorption capacity of the obtained LMO-C for Li
is 3.5 mmol g
, while the separation factor reaches 24.5 at a high Mg:Li ratio of 20. The extraction and insertion of Li atoms in the LiMn
O
lattice were visually confirmed. In addition, it is found that the synergistic effect between the LMO and the carbon networks is retained in the surface of LMO-C, and the above effect effectively promotes the migration of Li
and the sustainability of the HCDI process. This work is believed to provide a guidance for the design and synthesis of high-performance HCDI materials for the practical lithium extraction from brine. |
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ISSN: | 1944-8244 1944-8252 |
DOI: | 10.1021/acsami.4c16382 |