One-pot synthesis of tunable crystalline Ni3S4@amorphous MoS2 core/shell nanospheres for high-performance supercapacitors
Transition metal sulfides gain much attention as electrode materials for supercapacitors due to their rich redox chemistry and high electrical conductivity. Designing hierarchical nanostructures is an efficient approach to fully utilize merits of each component. In this work, amorphous MoS2 is first...
| Main Authors: | , , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2015
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| Online Access: | https://hdl.handle.net/10356/107377 http://hdl.handle.net/10220/25480 |
| _version_ | 1826109616064299008 |
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| author | Zhang, Yu Sun, Wenping Rui, Xianhong Li, Bing Tan, Hui Teng Guo, Guilue Madhavi, Srinivasan Zong, Yun Yan, Qingyu |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Zhang, Yu Sun, Wenping Rui, Xianhong Li, Bing Tan, Hui Teng Guo, Guilue Madhavi, Srinivasan Zong, Yun Yan, Qingyu |
| author_sort | Zhang, Yu |
| collection | NTU |
| description | Transition metal sulfides gain much attention as electrode materials for supercapacitors due to their rich redox chemistry and high electrical conductivity. Designing hierarchical nanostructures is an efficient approach to fully utilize merits of each component. In this work, amorphous MoS2 is firstly demonstrated to show specific capacitance 1.6 times as that of the crystalline counterpart. Then, crystalline core@amorphous shell (Ni3S4@MoS2) is prepared by a facile one-pot process. The diameter of the core and the thickness of the shell can be independently tuned. Taking advantages of flexible protection of amorphous shell and high capacitance of the conductive core, Ni3S4@amorphous MoS2 nanospheres are tested as supercapacitor electrodes, which exhibit high specific capacitance of 1440.9 F g−1 at 2 a g−1 and a good capacitance retention of 90.7% after 3000 cycles at 10 A g−1. This design of crystalline core@amorphous shell architecture may open up new strategies for synthesizing promising electrode materials for supercapacitors. |
| first_indexed | 2024-10-01T02:21:09Z |
| format | Journal Article |
| id | ntu-10356/107377 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:21:09Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | ntu-10356/1073772021-01-13T05:32:10Z One-pot synthesis of tunable crystalline Ni3S4@amorphous MoS2 core/shell nanospheres for high-performance supercapacitors Zhang, Yu Sun, Wenping Rui, Xianhong Li, Bing Tan, Hui Teng Guo, Guilue Madhavi, Srinivasan Zong, Yun Yan, Qingyu School of Materials Science and Engineering Energy Research Institute @ NTU (ERI@N) DRNTU::Engineering::Materials::Energy materials Transition metal sulfides gain much attention as electrode materials for supercapacitors due to their rich redox chemistry and high electrical conductivity. Designing hierarchical nanostructures is an efficient approach to fully utilize merits of each component. In this work, amorphous MoS2 is firstly demonstrated to show specific capacitance 1.6 times as that of the crystalline counterpart. Then, crystalline core@amorphous shell (Ni3S4@MoS2) is prepared by a facile one-pot process. The diameter of the core and the thickness of the shell can be independently tuned. Taking advantages of flexible protection of amorphous shell and high capacitance of the conductive core, Ni3S4@amorphous MoS2 nanospheres are tested as supercapacitor electrodes, which exhibit high specific capacitance of 1440.9 F g−1 at 2 a g−1 and a good capacitance retention of 90.7% after 3000 cycles at 10 A g−1. This design of crystalline core@amorphous shell architecture may open up new strategies for synthesizing promising electrode materials for supercapacitors. 2015-05-08T07:50:49Z 2019-12-06T22:29:36Z 2015-05-08T07:50:49Z 2019-12-06T22:29:36Z 2015 2015 Journal Article Zhang, Y., Sun, W., Rui, X., Li, B., Tan, H. T., Guo, G., et al. (2015). One-pot synthesis of tunable crystalline Ni3S4@amorphous MoS2 core/shell nanospheres for high-performance supercapacitors. Small, 11(30), 3694-3702. 1613-6810 https://hdl.handle.net/10356/107377 http://hdl.handle.net/10220/25480 10.1002/smll.201403772 en Small © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
| spellingShingle | DRNTU::Engineering::Materials::Energy materials Zhang, Yu Sun, Wenping Rui, Xianhong Li, Bing Tan, Hui Teng Guo, Guilue Madhavi, Srinivasan Zong, Yun Yan, Qingyu One-pot synthesis of tunable crystalline Ni3S4@amorphous MoS2 core/shell nanospheres for high-performance supercapacitors |
| title | One-pot synthesis of tunable crystalline Ni3S4@amorphous MoS2 core/shell nanospheres for high-performance supercapacitors |
| title_full | One-pot synthesis of tunable crystalline Ni3S4@amorphous MoS2 core/shell nanospheres for high-performance supercapacitors |
| title_fullStr | One-pot synthesis of tunable crystalline Ni3S4@amorphous MoS2 core/shell nanospheres for high-performance supercapacitors |
| title_full_unstemmed | One-pot synthesis of tunable crystalline Ni3S4@amorphous MoS2 core/shell nanospheres for high-performance supercapacitors |
| title_short | One-pot synthesis of tunable crystalline Ni3S4@amorphous MoS2 core/shell nanospheres for high-performance supercapacitors |
| title_sort | one pot synthesis of tunable crystalline ni3s4 amorphous mos2 core shell nanospheres for high performance supercapacitors |
| topic | DRNTU::Engineering::Materials::Energy materials |
| url | https://hdl.handle.net/10356/107377 http://hdl.handle.net/10220/25480 |
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