In situ fabrication of cuprous selenide electrode via selenization of copper current collector for high-efficiency potassium-ion and sodium-ion storage
Selenium-based materials are considered as desirable candidates for potassium-ion and sodium-ion storage. Herein, an in situ fabrication method is developed to prepare an integrated cuprous selenide electrode by means of directly chemical selenization of the copper current collector with commercial...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/164920 |
| _version_ | 1811688531108560896 |
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| author | Chen, Xi Li, Malin Wang, Shi-Ping Wang, Chunzhong Shen, Zexiang Bai, Fu-Quan Du, Fei |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Chen, Xi Li, Malin Wang, Shi-Ping Wang, Chunzhong Shen, Zexiang Bai, Fu-Quan Du, Fei |
| author_sort | Chen, Xi |
| collection | NTU |
| description | Selenium-based materials are considered as desirable candidates for potassium-ion and sodium-ion storage. Herein, an in situ fabrication method is developed to prepare an integrated cuprous selenide electrode by means of directly chemical selenization of the copper current collector with commercial selenium powder. Interestingly, only the electrolyte of 1 m potassium hexafluorophosphate dissolved in 1,2-dimethoxyethane with higher highest occupied molecular orbital energy and lower desolvation energy facilitates the formation of polyselenide intermediates and the further selenization of the copper current collector. Benefiting from the unique thin-film-like nanosheet morphology and the robust structural stability of the integrated electrode, the volume change and the loss of selenide species could be effectively restrained. Therefore, high performance is achieved in both potassium-ion batteries (462 mA h g-1 at 2 A g-1 for 300 cycles) and sodium-ion batteries (775 mA h g-1 at 2 A g-1 for 4000 cycles). The facile fabrication strategy paves a new direction for the design and preparation of high-performance electrodes. |
| first_indexed | 2024-10-01T05:33:41Z |
| format | Journal Article |
| id | ntu-10356/164920 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:33:41Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1649202023-02-28T20:12:39Z In situ fabrication of cuprous selenide electrode via selenization of copper current collector for high-efficiency potassium-ion and sodium-ion storage Chen, Xi Li, Malin Wang, Shi-Ping Wang, Chunzhong Shen, Zexiang Bai, Fu-Quan Du, Fei School of Physical and Mathematical Sciences Science::Physics Cuprous Selenides Electrode Materials, Selenium-based materials are considered as desirable candidates for potassium-ion and sodium-ion storage. Herein, an in situ fabrication method is developed to prepare an integrated cuprous selenide electrode by means of directly chemical selenization of the copper current collector with commercial selenium powder. Interestingly, only the electrolyte of 1 m potassium hexafluorophosphate dissolved in 1,2-dimethoxyethane with higher highest occupied molecular orbital energy and lower desolvation energy facilitates the formation of polyselenide intermediates and the further selenization of the copper current collector. Benefiting from the unique thin-film-like nanosheet morphology and the robust structural stability of the integrated electrode, the volume change and the loss of selenide species could be effectively restrained. Therefore, high performance is achieved in both potassium-ion batteries (462 mA h g-1 at 2 A g-1 for 300 cycles) and sodium-ion batteries (775 mA h g-1 at 2 A g-1 for 4000 cycles). The facile fabrication strategy paves a new direction for the design and preparation of high-performance electrodes. Published version This work was supported by National Natural Science Foundation of China with Grant No. 51972142, Department of Science and Technology of Jilin Province (20190701020GH), and Fundamental Research Funds for the Central Universities. M.L. would like to acknowledge the support from National Postdoctoral Program for Innovative Talents (BX20180119) and China Postdoctoral Science Foundation (2019M651194). 2023-02-27T06:45:38Z 2023-02-27T06:45:38Z 2022 Journal Article Chen, X., Li, M., Wang, S., Wang, C., Shen, Z., Bai, F. & Du, F. (2022). In situ fabrication of cuprous selenide electrode via selenization of copper current collector for high-efficiency potassium-ion and sodium-ion storage. Advanced Science, 9(5), e2104630-. https://dx.doi.org/10.1002/advs.202104630 2198-3844 https://hdl.handle.net/10356/164920 10.1002/advs.202104630 34939339 2-s2.0-85121636338 5 9 e2104630 en Advanced Science © 2021 The Authors. Advanced Science published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. application/pdf |
| spellingShingle | Science::Physics Cuprous Selenides Electrode Materials, Chen, Xi Li, Malin Wang, Shi-Ping Wang, Chunzhong Shen, Zexiang Bai, Fu-Quan Du, Fei In situ fabrication of cuprous selenide electrode via selenization of copper current collector for high-efficiency potassium-ion and sodium-ion storage |
| title | In situ fabrication of cuprous selenide electrode via selenization of copper current collector for high-efficiency potassium-ion and sodium-ion storage |
| title_full | In situ fabrication of cuprous selenide electrode via selenization of copper current collector for high-efficiency potassium-ion and sodium-ion storage |
| title_fullStr | In situ fabrication of cuprous selenide electrode via selenization of copper current collector for high-efficiency potassium-ion and sodium-ion storage |
| title_full_unstemmed | In situ fabrication of cuprous selenide electrode via selenization of copper current collector for high-efficiency potassium-ion and sodium-ion storage |
| title_short | In situ fabrication of cuprous selenide electrode via selenization of copper current collector for high-efficiency potassium-ion and sodium-ion storage |
| title_sort | in situ fabrication of cuprous selenide electrode via selenization of copper current collector for high efficiency potassium ion and sodium ion storage |
| topic | Science::Physics Cuprous Selenides Electrode Materials, |
| url | https://hdl.handle.net/10356/164920 |
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