Skeleton-structure WS2@CNT thin-film hybrid electrodes for high-performance quasi-solid-state flexible supercapacitors
The purpose of this work is to explore the application prospects of WS2 as an active material in flexible electrodes. Since WS2 has similar disadvantages as other two-dimensional layered materials, such as easily stacking, it is essential to develop a three-dimensional structure for its assembly in...
| Main Authors: | , , , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/145514 |
| _version_ | 1811677382065520640 |
|---|---|
| author | Yang, Xinyu Li, Jiahui Hou, Chengyi Zhang, Qinghong Li, Yaogang Wang, Hongzhi |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Yang, Xinyu Li, Jiahui Hou, Chengyi Zhang, Qinghong Li, Yaogang Wang, Hongzhi |
| author_sort | Yang, Xinyu |
| collection | NTU |
| description | The purpose of this work is to explore the application prospects of WS2 as an active material in flexible electrodes. Since WS2 has similar disadvantages as other two-dimensional layered materials, such as easily stacking, it is essential to develop a three-dimensional structure for its assembly in terms of electrochemical performance. In addition, the low conductivity of WS2 limits its application as flexible electrode material. In order to solve these problems, carbon nanotubes (CNTs) are introduced to improve the conductivity of hybrid WS2 materials and to construct a skeleton structure during WS2 assembly. Compared with pure CNTs and WS2, the WS2@CNT thin-film hybrid with a unique skeleton structure has a high specific area capacitance that reaches a maximum of 752.53 mF/cm2 at a scan rate 20 mV/s. Meanwhile, this hybrid electrode material shows good stability, with only 1.28% loss of its capacitance over 10,000 cycles. In order to prove its feasibility for practical application, a quasi-solid-state flexible supercapacitor is assembled, and its electrochemical characteristics (the specific area capacitance is 574.65 mF/cm2) and bendability (under bending to 135° 10, 000 times, 23.12% loss at a scan rate of 100 mV/s) are further investigated and prove its potential in this field. |
| first_indexed | 2024-10-01T02:36:28Z |
| format | Journal Article |
| id | ntu-10356/145514 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:36:28Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1455142023-07-14T15:51:10Z Skeleton-structure WS2@CNT thin-film hybrid electrodes for high-performance quasi-solid-state flexible supercapacitors Yang, Xinyu Li, Jiahui Hou, Chengyi Zhang, Qinghong Li, Yaogang Wang, Hongzhi School of Materials Science and Engineering Science::Chemistry Tungsten Disulfide Carbon Nanotubes The purpose of this work is to explore the application prospects of WS2 as an active material in flexible electrodes. Since WS2 has similar disadvantages as other two-dimensional layered materials, such as easily stacking, it is essential to develop a three-dimensional structure for its assembly in terms of electrochemical performance. In addition, the low conductivity of WS2 limits its application as flexible electrode material. In order to solve these problems, carbon nanotubes (CNTs) are introduced to improve the conductivity of hybrid WS2 materials and to construct a skeleton structure during WS2 assembly. Compared with pure CNTs and WS2, the WS2@CNT thin-film hybrid with a unique skeleton structure has a high specific area capacitance that reaches a maximum of 752.53 mF/cm2 at a scan rate 20 mV/s. Meanwhile, this hybrid electrode material shows good stability, with only 1.28% loss of its capacitance over 10,000 cycles. In order to prove its feasibility for practical application, a quasi-solid-state flexible supercapacitor is assembled, and its electrochemical characteristics (the specific area capacitance is 574.65 mF/cm2) and bendability (under bending to 135° 10, 000 times, 23.12% loss at a scan rate of 100 mV/s) are further investigated and prove its potential in this field. Published version 2020-12-23T08:23:42Z 2020-12-23T08:23:42Z 2020 Journal Article Yang, X., Li, J., Hou, C., Zhang, Q., Li, Y., & Wang, H. (2020). Skeleton-structure WS2@CNT thin-film hybrid electrodes for high-performance quasi-solid-state flexible supercapacitors. Frontiers in Chemistry, 8, 442-. doi:10.3389/fchem.2020.00442 2296-2646 https://hdl.handle.net/10356/145514 10.3389/fchem.2020.00442 32596203 8 en Frontiers in Chemistry © 2020 Yang, Li, Hou, Zhang, Li and Wang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. application/pdf |
| spellingShingle | Science::Chemistry Tungsten Disulfide Carbon Nanotubes Yang, Xinyu Li, Jiahui Hou, Chengyi Zhang, Qinghong Li, Yaogang Wang, Hongzhi Skeleton-structure WS2@CNT thin-film hybrid electrodes for high-performance quasi-solid-state flexible supercapacitors |
| title | Skeleton-structure WS2@CNT thin-film hybrid electrodes for high-performance quasi-solid-state flexible supercapacitors |
| title_full | Skeleton-structure WS2@CNT thin-film hybrid electrodes for high-performance quasi-solid-state flexible supercapacitors |
| title_fullStr | Skeleton-structure WS2@CNT thin-film hybrid electrodes for high-performance quasi-solid-state flexible supercapacitors |
| title_full_unstemmed | Skeleton-structure WS2@CNT thin-film hybrid electrodes for high-performance quasi-solid-state flexible supercapacitors |
| title_short | Skeleton-structure WS2@CNT thin-film hybrid electrodes for high-performance quasi-solid-state flexible supercapacitors |
| title_sort | skeleton structure ws2 cnt thin film hybrid electrodes for high performance quasi solid state flexible supercapacitors |
| topic | Science::Chemistry Tungsten Disulfide Carbon Nanotubes |
| url | https://hdl.handle.net/10356/145514 |
| work_keys_str_mv | AT yangxinyu skeletonstructurews2cntthinfilmhybridelectrodesforhighperformancequasisolidstateflexiblesupercapacitors AT lijiahui skeletonstructurews2cntthinfilmhybridelectrodesforhighperformancequasisolidstateflexiblesupercapacitors AT houchengyi skeletonstructurews2cntthinfilmhybridelectrodesforhighperformancequasisolidstateflexiblesupercapacitors AT zhangqinghong skeletonstructurews2cntthinfilmhybridelectrodesforhighperformancequasisolidstateflexiblesupercapacitors AT liyaogang skeletonstructurews2cntthinfilmhybridelectrodesforhighperformancequasisolidstateflexiblesupercapacitors AT wanghongzhi skeletonstructurews2cntthinfilmhybridelectrodesforhighperformancequasisolidstateflexiblesupercapacitors |