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- Publisher Website: 10.1002/smll.202306530
- Scopus: eid_2-s2.0-85173486033
- PMID: 37803923
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Article: Binder-Free LiMn2O4 Nanosheets on Carbon Cloth for Selective Lithium Extraction from Brine via Capacitive Deionization
Title | Binder-Free LiMn2O4 Nanosheets on Carbon Cloth for Selective Lithium Extraction from Brine via Capacitive Deionization |
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Authors | |
Keywords | binder-free electrodes capacitive deionization LiMn2O4 lithium extraction selective electrosorption |
Issue Date | 6-Oct-2023 |
Publisher | Wiley |
Citation | Small, 2023, v. 20, n. 9 How to Cite? |
Abstract | In this study, a three-step strategy including electrochemical cathode deposition, self-oxidation, and hydrothermal reaction is applied to prepare the LiMn2O4 nanosheets on carbon cloth (LMOns@CC) as a binder-free cathode in a hybrid capacitive deionization (CDI) cell for selectively extracting lithium from salt-lake brine. The binder-free LMOns@CC electrodes are constructed from dozens of 2D LiMn2O4 nanosheets on carbon cloth substrates, resulting in a uniform 2D array of highly ordered nanosheets with hierarchical nanostructure. The charge/discharge process of the LMOns@CC electrode demonstrates that visible redox peaks and high pseudocapacitive contribution rates endow the LMOns@CC cathode with a maximum Li+ ion electrosorption capacity of 4.71 mmol g−1 at 1.2 V. Moreover, the LMOns@CC electrode performs outstanding cycling stability with a high-capacity retention rate of 97.4% and a manganese mass dissolution rate of 0.35% over ten absorption–desorption cycles. The density functional theory (DFT) theoretical calculations verify that the Li+ selectivity of the LMOns@CC electrode is attributed to the greater adsorption energy of Li+ ions than other ions. Finally, the selective extraction performance of Li+ ions in natural Tibet salt lake brine reveals that the LMOns@CC has selectivity ((Formula presented.) = 7.48) and excellent cycling stability (100 cycles), which would make it a candidate electrode for lithium extraction from salt lakes. |
Persistent Identifier | http://hdl.handle.net/10722/346163 |
ISSN | 2023 Impact Factor: 13.0 2023 SCImago Journal Rankings: 3.348 |
DC Field | Value | Language |
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dc.contributor.author | Ma, Guangqiang | - |
dc.contributor.author | Xu, Yingsheng | - |
dc.contributor.author | Cai, Anjiang | - |
dc.contributor.author | Mao, Hengjian | - |
dc.contributor.author | Zhang, Xinyuan | - |
dc.contributor.author | Shin, Dong Myeong | - |
dc.contributor.author | Wang, Lei | - |
dc.contributor.author | Zhou, Hongjian | - |
dc.date.accessioned | 2024-09-12T00:30:36Z | - |
dc.date.available | 2024-09-12T00:30:36Z | - |
dc.date.issued | 2023-10-06 | - |
dc.identifier.citation | Small, 2023, v. 20, n. 9 | - |
dc.identifier.issn | 1613-6810 | - |
dc.identifier.uri | http://hdl.handle.net/10722/346163 | - |
dc.description.abstract | In this study, a three-step strategy including electrochemical cathode deposition, self-oxidation, and hydrothermal reaction is applied to prepare the LiMn2O4 nanosheets on carbon cloth (LMOns@CC) as a binder-free cathode in a hybrid capacitive deionization (CDI) cell for selectively extracting lithium from salt-lake brine. The binder-free LMOns@CC electrodes are constructed from dozens of 2D LiMn2O4 nanosheets on carbon cloth substrates, resulting in a uniform 2D array of highly ordered nanosheets with hierarchical nanostructure. The charge/discharge process of the LMOns@CC electrode demonstrates that visible redox peaks and high pseudocapacitive contribution rates endow the LMOns@CC cathode with a maximum Li+ ion electrosorption capacity of 4.71 mmol g−1 at 1.2 V. Moreover, the LMOns@CC electrode performs outstanding cycling stability with a high-capacity retention rate of 97.4% and a manganese mass dissolution rate of 0.35% over ten absorption–desorption cycles. The density functional theory (DFT) theoretical calculations verify that the Li+ selectivity of the LMOns@CC electrode is attributed to the greater adsorption energy of Li+ ions than other ions. Finally, the selective extraction performance of Li+ ions in natural Tibet salt lake brine reveals that the LMOns@CC has selectivity ((Formula presented.) = 7.48) and excellent cycling stability (100 cycles), which would make it a candidate electrode for lithium extraction from salt lakes. | - |
dc.language | eng | - |
dc.publisher | Wiley | - |
dc.relation.ispartof | Small | - |
dc.subject | binder-free electrodes | - |
dc.subject | capacitive deionization | - |
dc.subject | LiMn2O4 | - |
dc.subject | lithium extraction | - |
dc.subject | selective electrosorption | - |
dc.title | Binder-Free LiMn2O4 Nanosheets on Carbon Cloth for Selective Lithium Extraction from Brine via Capacitive Deionization | - |
dc.type | Article | - |
dc.identifier.doi | 10.1002/smll.202306530 | - |
dc.identifier.pmid | 37803923 | - |
dc.identifier.scopus | eid_2-s2.0-85173486033 | - |
dc.identifier.volume | 20 | - |
dc.identifier.issue | 9 | - |
dc.identifier.eissn | 1613-6829 | - |
dc.identifier.issnl | 1613-6810 | - |