CoSe2-decorated NbSe2 nanosheets fabricated via cation exchange for Li storage
Though 2D transition metal dichalcogenides have attracted a lot of attention in energy-storage applications, the applications of NbSe2 for Li storage are still limited by the unsatisfactory theoretical capacity and uncontrollable synthetic approaches. Herein, a controllable oil-phase synthetic route...
| Main Authors: | , , , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/139934 |
| _version_ | 1826129056919191552 |
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| author | Zhang, Jianli Du, Chengfeng Zhao, Jin Ren, Hao Liang, Qinghua Zheng, Yun Madhavi, Srinivasan Wang, Xin Zhu, Junwu Yan, Qingyu |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Zhang, Jianli Du, Chengfeng Zhao, Jin Ren, Hao Liang, Qinghua Zheng, Yun Madhavi, Srinivasan Wang, Xin Zhu, Junwu Yan, Qingyu |
| author_sort | Zhang, Jianli |
| collection | NTU |
| description | Though 2D transition metal dichalcogenides have attracted a lot of attention in energy-storage applications, the applications of NbSe2 for Li storage are still limited by the unsatisfactory theoretical capacity and uncontrollable synthetic approaches. Herein, a controllable oil-phase synthetic route for preparation of NbSe2 nanoflowers consisted of nanosheets with a thickness of ∼10 nm is presented. Significantly, a part of NbSe2 can be further replaced by orthorhombic CoSe2 nanoparticles via a post cation exchange process, and the predominantly 2D nanosheet-like morphology can be well-maintained, resulting in the formation of CoSe2-decorated NbSe2 (denoted as CDN) nanosheets. More interestingly, the CDN nanosheets exhibit excellent lithium-ion battery performance. For example, it achieves a highly reversible capacity of 280 mAh g-1 at 10 A g-1 and long cyclic stability with specific capacity of 364.7 mAh g-1 at 5 A g-1 after 1500 cycles, which are significantly higher than those of reported pure NbSe2. |
| first_indexed | 2024-10-01T07:34:32Z |
| format | Journal Article |
| id | ntu-10356/139934 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:34:32Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1399342023-07-14T16:04:15Z CoSe2-decorated NbSe2 nanosheets fabricated via cation exchange for Li storage Zhang, Jianli Du, Chengfeng Zhao, Jin Ren, Hao Liang, Qinghua Zheng, Yun Madhavi, Srinivasan Wang, Xin Zhu, Junwu Yan, Qingyu School of Materials Science & Engineering Engineering::Materials NbSe2 Nanosheets Though 2D transition metal dichalcogenides have attracted a lot of attention in energy-storage applications, the applications of NbSe2 for Li storage are still limited by the unsatisfactory theoretical capacity and uncontrollable synthetic approaches. Herein, a controllable oil-phase synthetic route for preparation of NbSe2 nanoflowers consisted of nanosheets with a thickness of ∼10 nm is presented. Significantly, a part of NbSe2 can be further replaced by orthorhombic CoSe2 nanoparticles via a post cation exchange process, and the predominantly 2D nanosheet-like morphology can be well-maintained, resulting in the formation of CoSe2-decorated NbSe2 (denoted as CDN) nanosheets. More interestingly, the CDN nanosheets exhibit excellent lithium-ion battery performance. For example, it achieves a highly reversible capacity of 280 mAh g-1 at 10 A g-1 and long cyclic stability with specific capacity of 364.7 mAh g-1 at 5 A g-1 after 1500 cycles, which are significantly higher than those of reported pure NbSe2. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) Accepted version 2020-05-22T09:11:27Z 2020-05-22T09:11:27Z 2018 Journal Article Zhang, J., Du, C., Zhao, J., Ren, H., Liang, Q., Zheng, Y., . . . Yan, Q. (2018). CoSe2-decorated NbSe2 nanosheets fabricated via cation exchange for Li storage. ACS Applied Materials & Interfaces, 10(44), 37773-37778. doi:10.1021/acsami.8b15457 1944-8252 https://hdl.handle.net/10356/139934 10.1021/acsami.8b15457 30346690 2-s2.0-85056090350 44 10 37773 37778 en ACS Applied Materials & Interfaces This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials & Interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsami.8b15457 application/pdf |
| spellingShingle | Engineering::Materials NbSe2 Nanosheets Zhang, Jianli Du, Chengfeng Zhao, Jin Ren, Hao Liang, Qinghua Zheng, Yun Madhavi, Srinivasan Wang, Xin Zhu, Junwu Yan, Qingyu CoSe2-decorated NbSe2 nanosheets fabricated via cation exchange for Li storage |
| title | CoSe2-decorated NbSe2 nanosheets fabricated via cation exchange for Li storage |
| title_full | CoSe2-decorated NbSe2 nanosheets fabricated via cation exchange for Li storage |
| title_fullStr | CoSe2-decorated NbSe2 nanosheets fabricated via cation exchange for Li storage |
| title_full_unstemmed | CoSe2-decorated NbSe2 nanosheets fabricated via cation exchange for Li storage |
| title_short | CoSe2-decorated NbSe2 nanosheets fabricated via cation exchange for Li storage |
| title_sort | cose2 decorated nbse2 nanosheets fabricated via cation exchange for li storage |
| topic | Engineering::Materials NbSe2 Nanosheets |
| url | https://hdl.handle.net/10356/139934 |
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