Controllable design of MoS2 nanosheets anchored on nitrogen-doped graphene : toward fast sodium storage by tunable pseudocapacitance
Transition-metal disulfide with its layered structure is regarded as a kind of promising host material for sodium insertion, and intensely investigated for sodium-ion batteries. In this work, a simple solvothermal method to synthesize a series of MoS2 nanosheets@nitrogen-doped graphene composites is...
| 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/10356/138980 |
| _version_ | 1826118897183490048 |
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| author | Xu, Xin Zhao, Ruisheng Ai, Wei Chen, Bo Du, Hongfang Wu, Lishu Zhang, Hua Huang, Wei Yu, Ting |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Xu, Xin Zhao, Ruisheng Ai, Wei Chen, Bo Du, Hongfang Wu, Lishu Zhang, Hua Huang, Wei Yu, Ting |
| author_sort | Xu, Xin |
| collection | NTU |
| description | Transition-metal disulfide with its layered structure is regarded as a kind of promising host material for sodium insertion, and intensely investigated for sodium-ion batteries. In this work, a simple solvothermal method to synthesize a series of MoS2 nanosheets@nitrogen-doped graphene composites is developed. This newly designed recipe of raw materials and solvents leads the success of tuning size, number of layers, and interplanar spacing of the as-prepared MoS2 nanosheets. Under cut-off voltage and based on an intercalation mechanism, the ultrasmall MoS2 nanosheets@nitrogen-doped graphene composite exhibits more preferable cycling and rate performance compared to few-/dozens-layered MoS2 nanosheets@nitrogen-doped graphene, as well as many other reported insertion-type anode materials. Last, detailed kinetics analysis and density functional theory calculation are also employed to explain the Na+ - storage behavior, thus proving the significance in surface-controlled pseudocapacitance contribution at the high rate. Furthermore, this work offers some meaningful preparation and investigation experiences for designing electrode materials for commercial sodium-ion batteries with favorable performance. |
| first_indexed | 2024-10-01T04:51:03Z |
| format | Journal Article |
| id | ntu-10356/138980 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:51:03Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1389802020-06-01T10:01:43Z Controllable design of MoS2 nanosheets anchored on nitrogen-doped graphene : toward fast sodium storage by tunable pseudocapacitance Xu, Xin Zhao, Ruisheng Ai, Wei Chen, Bo Du, Hongfang Wu, Lishu Zhang, Hua Huang, Wei Yu, Ting School of Materials Science & Engineering School of Physical and Mathematical Sciences Science::Physics Intercalation Mechanism MoS2 Nanosheets Transition-metal disulfide with its layered structure is regarded as a kind of promising host material for sodium insertion, and intensely investigated for sodium-ion batteries. In this work, a simple solvothermal method to synthesize a series of MoS2 nanosheets@nitrogen-doped graphene composites is developed. This newly designed recipe of raw materials and solvents leads the success of tuning size, number of layers, and interplanar spacing of the as-prepared MoS2 nanosheets. Under cut-off voltage and based on an intercalation mechanism, the ultrasmall MoS2 nanosheets@nitrogen-doped graphene composite exhibits more preferable cycling and rate performance compared to few-/dozens-layered MoS2 nanosheets@nitrogen-doped graphene, as well as many other reported insertion-type anode materials. Last, detailed kinetics analysis and density functional theory calculation are also employed to explain the Na+ - storage behavior, thus proving the significance in surface-controlled pseudocapacitance contribution at the high rate. Furthermore, this work offers some meaningful preparation and investigation experiences for designing electrode materials for commercial sodium-ion batteries with favorable performance. 2020-05-14T08:07:20Z 2020-05-14T08:07:20Z 2018 Journal Article Xu, X., Zhao, R., Ai, W., Chen, B., Du, H., Wu, L., . . . Yu, T. (2018). Controllable design of MoS2 nanosheets anchored on nitrogen-doped graphene : toward fast sodium storage by tunable pseudocapacitance. Advanced Materials, 30(27), 1800658-. doi:10.1002/adma.201800658 0935-9648 https://hdl.handle.net/10356/138980 10.1002/adma.201800658 29797502 2-s2.0-85047550111 27 30 en Advanced Materials © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. All rights reserved. This paper was published in Advanced Materials and is made available with permission of WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
| spellingShingle | Science::Physics Intercalation Mechanism MoS2 Nanosheets Xu, Xin Zhao, Ruisheng Ai, Wei Chen, Bo Du, Hongfang Wu, Lishu Zhang, Hua Huang, Wei Yu, Ting Controllable design of MoS2 nanosheets anchored on nitrogen-doped graphene : toward fast sodium storage by tunable pseudocapacitance |
| title | Controllable design of MoS2 nanosheets anchored on nitrogen-doped graphene : toward fast sodium storage by tunable pseudocapacitance |
| title_full | Controllable design of MoS2 nanosheets anchored on nitrogen-doped graphene : toward fast sodium storage by tunable pseudocapacitance |
| title_fullStr | Controllable design of MoS2 nanosheets anchored on nitrogen-doped graphene : toward fast sodium storage by tunable pseudocapacitance |
| title_full_unstemmed | Controllable design of MoS2 nanosheets anchored on nitrogen-doped graphene : toward fast sodium storage by tunable pseudocapacitance |
| title_short | Controllable design of MoS2 nanosheets anchored on nitrogen-doped graphene : toward fast sodium storage by tunable pseudocapacitance |
| title_sort | controllable design of mos2 nanosheets anchored on nitrogen doped graphene toward fast sodium storage by tunable pseudocapacitance |
| topic | Science::Physics Intercalation Mechanism MoS2 Nanosheets |
| url | https://hdl.handle.net/10356/138980 |
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