Facet-Controlled LiMn2O4/C as Deionization Electrode with Enhanced Stability and High Desalination Performance
Highlights First report of a lithium-ion battery cathode as a deionization electrode for desalination. A novel approach to suppress manganese dissolution by exposing the (111) facet is proposed. Excellent desalination performance by the LiMn2O4/C cathode. The material achieves an ultrahigh desalinat...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2022-08-01
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| Series: | Nano-Micro Letters |
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| Online Access: | https://doi.org/10.1007/s40820-022-00897-3 |
| _version_ | 1811188968618721280 |
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| author | Yuxin Jiang Liyuan Chai Dehe Zhang Fangping Ouyang Xiangyuan Zhou Sikpaam I. Alhassan Sailin Liu Yingjie He Lvji Yan Haiying Wang Wenchao Zhang |
| author_facet | Yuxin Jiang Liyuan Chai Dehe Zhang Fangping Ouyang Xiangyuan Zhou Sikpaam I. Alhassan Sailin Liu Yingjie He Lvji Yan Haiying Wang Wenchao Zhang |
| author_sort | Yuxin Jiang |
| collection | DOAJ |
| description | Highlights First report of a lithium-ion battery cathode as a deionization electrode for desalination. A novel approach to suppress manganese dissolution by exposing the (111) facet is proposed. Excellent desalination performance by the LiMn2O4/C cathode. The material achieves an ultrahigh desalination capacity of 117.3 mg g−1 at 1.0 V and a longer cycle life (200 cycles without capacity decay) with minor manganese dissolution during the cycling test in 10 mM aqueous LiCl solution. Abstract Battery materials as emerging capacitive deionization electrodes for desalination have better salt removal capacities than traditional carbon-based materials. LiMn2O4, a widely used cathode material, is difficult to utilize as a deionization electrode due to its structural instability upon cycling and Mn dissolution in aqueous-based electrolytes. Herein, a facile and low-cost ball-milling routine was proposed to prepare a LiMn2O4 material with highly exposed (111) facets. The prepared electrode exhibited relatively low dissolution of Mn during cycling, which shows its long cycle stability. In the hybrid capacitive deionization system, the LiMn2O4/C electrode delivered a high desalination capacity of 117.3 mg g−1 without obvious capacity decay at a voltage of 1.0 V with a 20 mM initial salt concentration. In addition, the exposed (111) facets significantly alleviated Mn ion dissolution, which also enhanced the structural steadiness. |
| first_indexed | 2024-04-11T14:26:55Z |
| format | Article |
| id | doaj.art-caacea375aee4ef3ae714e2c802deba7 |
| institution | Directory Open Access Journal |
| issn | 2311-6706 2150-5551 |
| language | English |
| last_indexed | 2024-04-11T14:26:55Z |
| publishDate | 2022-08-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nano-Micro Letters |
| spelling | doaj.art-caacea375aee4ef3ae714e2c802deba72022-12-22T04:18:50ZengSpringerOpenNano-Micro Letters2311-67062150-55512022-08-0114111210.1007/s40820-022-00897-3Facet-Controlled LiMn2O4/C as Deionization Electrode with Enhanced Stability and High Desalination PerformanceYuxin Jiang0Liyuan Chai1Dehe Zhang2Fangping Ouyang3Xiangyuan Zhou4Sikpaam I. Alhassan5Sailin Liu6Yingjie He7Lvji Yan8Haiying Wang9Wenchao Zhang10School of Metallurgy and Environment, Central South UniversitySchool of Metallurgy and Environment, Central South UniversitySchool of Physics and Electronics, Hunan Key Laboratory for Super-Microstructure and Ultrafast Process, and Hunan Key Laboratory of Nanophotonics and Devices, Central South UniversitySchool of Physics and Electronics, Hunan Key Laboratory for Super-Microstructure and Ultrafast Process, and Hunan Key Laboratory of Nanophotonics and Devices, Central South UniversitySchool of Metallurgy and Environment, Central South UniversitySchool of Metallurgy and Environment, Central South UniversitySchool of Chemical Engineering and Advanced Materials, Faculty of Sciences, Engineering and Technology, The University of AdelaideSchool of Metallurgy and Environment, Central South UniversitySchool of Metallurgy and Environment, Central South UniversitySchool of Metallurgy and Environment, Central South UniversitySchool of Metallurgy and Environment, Central South UniversityHighlights First report of a lithium-ion battery cathode as a deionization electrode for desalination. A novel approach to suppress manganese dissolution by exposing the (111) facet is proposed. Excellent desalination performance by the LiMn2O4/C cathode. The material achieves an ultrahigh desalination capacity of 117.3 mg g−1 at 1.0 V and a longer cycle life (200 cycles without capacity decay) with minor manganese dissolution during the cycling test in 10 mM aqueous LiCl solution. Abstract Battery materials as emerging capacitive deionization electrodes for desalination have better salt removal capacities than traditional carbon-based materials. LiMn2O4, a widely used cathode material, is difficult to utilize as a deionization electrode due to its structural instability upon cycling and Mn dissolution in aqueous-based electrolytes. Herein, a facile and low-cost ball-milling routine was proposed to prepare a LiMn2O4 material with highly exposed (111) facets. The prepared electrode exhibited relatively low dissolution of Mn during cycling, which shows its long cycle stability. In the hybrid capacitive deionization system, the LiMn2O4/C electrode delivered a high desalination capacity of 117.3 mg g−1 without obvious capacity decay at a voltage of 1.0 V with a 20 mM initial salt concentration. In addition, the exposed (111) facets significantly alleviated Mn ion dissolution, which also enhanced the structural steadiness.https://doi.org/10.1007/s40820-022-00897-3Deionization electrodeDesalinationLithium-ion battery |
| spellingShingle | Yuxin Jiang Liyuan Chai Dehe Zhang Fangping Ouyang Xiangyuan Zhou Sikpaam I. Alhassan Sailin Liu Yingjie He Lvji Yan Haiying Wang Wenchao Zhang Facet-Controlled LiMn2O4/C as Deionization Electrode with Enhanced Stability and High Desalination Performance Nano-Micro Letters Deionization electrode Desalination Lithium-ion battery |
| title | Facet-Controlled LiMn2O4/C as Deionization Electrode with Enhanced Stability and High Desalination Performance |
| title_full | Facet-Controlled LiMn2O4/C as Deionization Electrode with Enhanced Stability and High Desalination Performance |
| title_fullStr | Facet-Controlled LiMn2O4/C as Deionization Electrode with Enhanced Stability and High Desalination Performance |
| title_full_unstemmed | Facet-Controlled LiMn2O4/C as Deionization Electrode with Enhanced Stability and High Desalination Performance |
| title_short | Facet-Controlled LiMn2O4/C as Deionization Electrode with Enhanced Stability and High Desalination Performance |
| title_sort | facet controlled limn2o4 c as deionization electrode with enhanced stability and high desalination performance |
| topic | Deionization electrode Desalination Lithium-ion battery |
| url | https://doi.org/10.1007/s40820-022-00897-3 |
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