Solid-state self-template synthesis of Ta-doped Li2ZnTi3O8 spheres for efficient and durable lithium storage
Summary: Ta-doped Li2ZnTi3O8 (LZTO) spheres (Li2ZnTi3-xTaxO8; where x is the synthetic chemical input, x = 0, 0.03, 0.05, 0.07) are synthesized via solid-state reaction using mesoporous TiO2 spheres as the self-template. The majority of Ta5+ ions are uniformly doped into crystal lattices of LZTO thr...
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| Language: | English |
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Elsevier
2021-09-01
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| Series: | iScience |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589004221009597 |
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| author | Dongwei Ma Jiahui Li Jing Yang Chengfu Yang Maykel Manawan Yongri Liang Ting Feng Yong-Wei Zhang Jia Hong Pan |
| author_facet | Dongwei Ma Jiahui Li Jing Yang Chengfu Yang Maykel Manawan Yongri Liang Ting Feng Yong-Wei Zhang Jia Hong Pan |
| author_sort | Dongwei Ma |
| collection | DOAJ |
| description | Summary: Ta-doped Li2ZnTi3O8 (LZTO) spheres (Li2ZnTi3-xTaxO8; where x is the synthetic chemical input, x = 0, 0.03, 0.05, 0.07) are synthesized via solid-state reaction using mesoporous TiO2 spheres as the self-template. The majority of Ta5+ ions are uniformly doped into crystal lattices of LZTO through the Ti↔Ta substitution, and the rest forms the piezoelectric LiTaO3 secondary phase on the surface, as confirmed by X-ray diffraction refinement, Raman spectroscopy, density functional theory, and electron microscopy. Electrochemical impedance spectroscopy demonstrates that the Ta5+ doping creates rapid electronic transportation channels for high Li+ ion diffusion kinetics; however, the LiTaO3 surface coating is beneficial to improve the electronic conductivity. At the optimal x = 0.05, Li2ZnTi3-xTaxO8 spheres exhibit a reversible capacity of 90.2 mAh/g after 2000 cycles with a high coulombic efficiency of ≈100% at 5.0 A/g, thus enabling a promising anode material for lithium-ion batteries with high power and energy densities. |
| first_indexed | 2024-12-13T21:51:34Z |
| format | Article |
| id | doaj.art-e4a03c2ec38745dfb700e2707e97907e |
| institution | Directory Open Access Journal |
| issn | 2589-0042 |
| language | English |
| last_indexed | 2024-12-13T21:51:34Z |
| publishDate | 2021-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | iScience |
| spelling | doaj.art-e4a03c2ec38745dfb700e2707e97907e2022-12-21T23:30:16ZengElsevieriScience2589-00422021-09-01249102991Solid-state self-template synthesis of Ta-doped Li2ZnTi3O8 spheres for efficient and durable lithium storageDongwei Ma0Jiahui Li1Jing Yang2Chengfu Yang3Maykel Manawan4Yongri Liang5Ting Feng6Yong-Wei Zhang7Jia Hong Pan8MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, ChinaMOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, ChinaInstitute of High Performance Computing, Agency for Science, Technology and Research (A∗STAR), 1 Fusionopolis Way, #16-16 Connexis, Singapore 138632, SingaporeMOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, ChinaFakultas Teknologi Pertahanan, Universitas Pertahanan Indonesia, Jawa Barat 16810, IndonesiaState Key Lab of Metastable Materials Science and Technology, and School of Materials Science and Engineering, Yanshan University, Qinhuangdao 066012, Hebei, ChinaSchool of Metallurgical and Ecological Engineering, University of Science & Technology Beijing, Beijing 100083, ChinaInstitute of High Performance Computing, Agency for Science, Technology and Research (A∗STAR), 1 Fusionopolis Way, #16-16 Connexis, Singapore 138632, SingaporeMOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China; Corresponding authorSummary: Ta-doped Li2ZnTi3O8 (LZTO) spheres (Li2ZnTi3-xTaxO8; where x is the synthetic chemical input, x = 0, 0.03, 0.05, 0.07) are synthesized via solid-state reaction using mesoporous TiO2 spheres as the self-template. The majority of Ta5+ ions are uniformly doped into crystal lattices of LZTO through the Ti↔Ta substitution, and the rest forms the piezoelectric LiTaO3 secondary phase on the surface, as confirmed by X-ray diffraction refinement, Raman spectroscopy, density functional theory, and electron microscopy. Electrochemical impedance spectroscopy demonstrates that the Ta5+ doping creates rapid electronic transportation channels for high Li+ ion diffusion kinetics; however, the LiTaO3 surface coating is beneficial to improve the electronic conductivity. At the optimal x = 0.05, Li2ZnTi3-xTaxO8 spheres exhibit a reversible capacity of 90.2 mAh/g after 2000 cycles with a high coulombic efficiency of ≈100% at 5.0 A/g, thus enabling a promising anode material for lithium-ion batteries with high power and energy densities.http://www.sciencedirect.com/science/article/pii/S2589004221009597Energy systemsEnergy storageMaterials synthesisEnergy materials |
| spellingShingle | Dongwei Ma Jiahui Li Jing Yang Chengfu Yang Maykel Manawan Yongri Liang Ting Feng Yong-Wei Zhang Jia Hong Pan Solid-state self-template synthesis of Ta-doped Li2ZnTi3O8 spheres for efficient and durable lithium storage iScience Energy systems Energy storage Materials synthesis Energy materials |
| title | Solid-state self-template synthesis of Ta-doped Li2ZnTi3O8 spheres for efficient and durable lithium storage |
| title_full | Solid-state self-template synthesis of Ta-doped Li2ZnTi3O8 spheres for efficient and durable lithium storage |
| title_fullStr | Solid-state self-template synthesis of Ta-doped Li2ZnTi3O8 spheres for efficient and durable lithium storage |
| title_full_unstemmed | Solid-state self-template synthesis of Ta-doped Li2ZnTi3O8 spheres for efficient and durable lithium storage |
| title_short | Solid-state self-template synthesis of Ta-doped Li2ZnTi3O8 spheres for efficient and durable lithium storage |
| title_sort | solid state self template synthesis of ta doped li2znti3o8 spheres for efficient and durable lithium storage |
| topic | Energy systems Energy storage Materials synthesis Energy materials |
| url | http://www.sciencedirect.com/science/article/pii/S2589004221009597 |
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