MoS0.5Se1.5 embedded in 2D porous carbon sheets boost lithium storage performance as an anode material
A promising anode material is developed for Li‐ion batteries consisting of MoS0.5Se1.5 particles uniformly embedded in 2D porous carbon sheets (denoted as MoS0.5Se1.5/C sheets). The formation of MoS0.5Se1.5/C sheets depends on a facile and cost‐effective potassium chloride (KCl)‐assisted strategy. T...
| Main Authors: | , , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2019
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| Online Access: | https://hdl.handle.net/10356/92178 http://hdl.handle.net/10220/48543 |
| _version_ | 1811697263060189184 |
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| author | Li, Tongfei Wang, Ao Li, Xin Wang, Jingchun Zhang, Jie Fu, Gengtao Xu, Lin Sun, Dongmei Tang, Yawen |
| author2 | School of Chemical and Biomedical Engineering |
| author_facet | School of Chemical and Biomedical Engineering Li, Tongfei Wang, Ao Li, Xin Wang, Jingchun Zhang, Jie Fu, Gengtao Xu, Lin Sun, Dongmei Tang, Yawen |
| author_sort | Li, Tongfei |
| collection | NTU |
| description | A promising anode material is developed for Li‐ion batteries consisting of MoS0.5Se1.5 particles uniformly embedded in 2D porous carbon sheets (denoted as MoS0.5Se1.5/C sheets). The formation of MoS0.5Se1.5/C sheets depends on a facile and cost‐effective potassium chloride (KCl)‐assisted strategy. The micrometer‐level KCl crystals are selected as the solid template because they are more easily precipitated than metal precursors and carbon source during recrystallization, which drives the simultaneous formation of carbon sheets and MoS0.5Se1.5 particles on KCl surface after pyrolysis; while makes a tighter integration between MoS0.5Se1.5 and carbon sheets. As an anode for Li‐ion batteries, the MoS0.5Se1.5/C sheets show more excellent Li storage properties compared to that of S‐free MoSe2/C sheets, including excellent cyclic stability and high rate capacity. Specifically, 494.8 mA h g−1 at a current density of 100 mA g−1 still is maintained for MoS0.5Se1.5/C sheets after 200 cycles, which is much higher than that of MoSe2/C sheets (173.5 mA h g−1). The significantly enhanced performance of MoS0.5Se1.5/C sheets can be attributed to the synergistic combination of MoS0.5Se1.5 phase and porous carbon sheets, which provides an effective conductive matrix and buffer spaces for Li‐ion/electronic transfer and MoS0.5Se1.5 expansion, during the charge–discharge. |
| first_indexed | 2024-10-01T07:52:28Z |
| format | Journal Article |
| id | ntu-10356/92178 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:52:28Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/921782023-12-29T06:52:58Z MoS0.5Se1.5 embedded in 2D porous carbon sheets boost lithium storage performance as an anode material Li, Tongfei Wang, Ao Li, Xin Wang, Jingchun Zhang, Jie Fu, Gengtao Xu, Lin Sun, Dongmei Tang, Yawen School of Chemical and Biomedical Engineering Anode KCl-template DRNTU::Engineering::Chemical engineering A promising anode material is developed for Li‐ion batteries consisting of MoS0.5Se1.5 particles uniformly embedded in 2D porous carbon sheets (denoted as MoS0.5Se1.5/C sheets). The formation of MoS0.5Se1.5/C sheets depends on a facile and cost‐effective potassium chloride (KCl)‐assisted strategy. The micrometer‐level KCl crystals are selected as the solid template because they are more easily precipitated than metal precursors and carbon source during recrystallization, which drives the simultaneous formation of carbon sheets and MoS0.5Se1.5 particles on KCl surface after pyrolysis; while makes a tighter integration between MoS0.5Se1.5 and carbon sheets. As an anode for Li‐ion batteries, the MoS0.5Se1.5/C sheets show more excellent Li storage properties compared to that of S‐free MoSe2/C sheets, including excellent cyclic stability and high rate capacity. Specifically, 494.8 mA h g−1 at a current density of 100 mA g−1 still is maintained for MoS0.5Se1.5/C sheets after 200 cycles, which is much higher than that of MoSe2/C sheets (173.5 mA h g−1). The significantly enhanced performance of MoS0.5Se1.5/C sheets can be attributed to the synergistic combination of MoS0.5Se1.5 phase and porous carbon sheets, which provides an effective conductive matrix and buffer spaces for Li‐ion/electronic transfer and MoS0.5Se1.5 expansion, during the charge–discharge. Accepted version 2019-06-04T07:50:34Z 2019-12-06T18:18:44Z 2019-06-04T07:50:34Z 2019-12-06T18:18:44Z 2018 Journal Article Li, T., Wang, A., Li, X., Wang, J., Zhang, J., Fu, G., . . . Tang, Y. (2018). MoS0.5Se1.5 embedded in 2D porous carbon sheets boost lithium storage performance as an anode material. Advanced Materials Interfaces, 5(7), 1701604-. doi:10.1002/admi.201701604 https://hdl.handle.net/10356/92178 http://hdl.handle.net/10220/48543 10.1002/admi.201701604 en Advanced Materials Interfaces © 2018 WILEY-VCH Verlag GmbH & Co. KGaA. This is the peer reviewed version of the following article: Li, T., Wang, A., Li, X., Wang, J., Zhang, J., Fu, G., . . . Tang, Y. (2018). MoS0.5Se1.5 embedded in 2D porous carbon sheets boost lithium storage performance as an anode material. Advanced Materials Interfaces, 5(7), 1701604-, which has been published in final form at http://dx.doi.org/10.1002/admi.201701604. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. 21 p. application/pdf |
| spellingShingle | Anode KCl-template DRNTU::Engineering::Chemical engineering Li, Tongfei Wang, Ao Li, Xin Wang, Jingchun Zhang, Jie Fu, Gengtao Xu, Lin Sun, Dongmei Tang, Yawen MoS0.5Se1.5 embedded in 2D porous carbon sheets boost lithium storage performance as an anode material |
| title | MoS0.5Se1.5 embedded in 2D porous carbon sheets boost lithium storage performance as an anode material |
| title_full | MoS0.5Se1.5 embedded in 2D porous carbon sheets boost lithium storage performance as an anode material |
| title_fullStr | MoS0.5Se1.5 embedded in 2D porous carbon sheets boost lithium storage performance as an anode material |
| title_full_unstemmed | MoS0.5Se1.5 embedded in 2D porous carbon sheets boost lithium storage performance as an anode material |
| title_short | MoS0.5Se1.5 embedded in 2D porous carbon sheets boost lithium storage performance as an anode material |
| title_sort | mos0 5se1 5 embedded in 2d porous carbon sheets boost lithium storage performance as an anode material |
| topic | Anode KCl-template DRNTU::Engineering::Chemical engineering |
| url | https://hdl.handle.net/10356/92178 http://hdl.handle.net/10220/48543 |
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