Phase-controlled synthesis of α-NiS nanoparticles confined in carbon nanorods for high performance supercapacitors
A facile and phase-controlled synthesis of α-NiS nanoparticles (NPs) embedded in carbon nanorods (CRs) is reported by in-situ sulfurating the preformed Ni/CRs. The nanopore confinement by the carbon matrix is essential for the formation of α-NiS and preventing its transition to β-phase, which is in...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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2015
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| Online Access: | https://hdl.handle.net/10356/106931 http://hdl.handle.net/10220/25230 |
| _version_ | 1826127800955830272 |
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| author | Sun, Chencheng Ma, Mingze Yang, Jun Zhang, Yufei Chen, Peng Huang, Wei Dong, Xiaochen |
| author2 | School of Chemical and Biomedical Engineering |
| author_facet | School of Chemical and Biomedical Engineering Sun, Chencheng Ma, Mingze Yang, Jun Zhang, Yufei Chen, Peng Huang, Wei Dong, Xiaochen |
| author_sort | Sun, Chencheng |
| collection | NTU |
| description | A facile and phase-controlled synthesis of α-NiS nanoparticles (NPs) embedded in carbon nanorods (CRs) is reported by in-situ sulfurating the preformed Ni/CRs. The nanopore confinement by the carbon matrix is essential for the formation of α-NiS and preventing its transition to β-phase, which is in strong contrast to large aggregated β-NiS particles grown freely without the confinement of CRs. When used as electrochemical electrode, the hybrid electrochemical charge storage of the ultrasmall α-NiS nanoparticels dispersed in CRs is benefit for the high capacitor (1092, 946, 835, 740 F g−1 at current densities of 1, 2, 5, 10 A g−1, respectively.). While the high electrochemical stability (approximately 100% retention of specific capacitance after 2000 charge/discharge cycles) is attributed to the supercapacitor-battery electrode, which makes synergistic effect of capacitor (CRs) and battery (NiS NPs) components rather than a merely additive composite. This work not only suggests a general approach for phase-controlled synthesis of nickel sulfide but also opens the door to the rational design and fabrication of novel nickel-based/carbon hybrid supercapacitor-battery electrode materials. |
| first_indexed | 2024-10-01T07:14:26Z |
| format | Journal Article |
| id | ntu-10356/106931 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:14:26Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | ntu-10356/1069312023-12-29T06:51:54Z Phase-controlled synthesis of α-NiS nanoparticles confined in carbon nanorods for high performance supercapacitors Sun, Chencheng Ma, Mingze Yang, Jun Zhang, Yufei Chen, Peng Huang, Wei Dong, Xiaochen School of Chemical and Biomedical Engineering DRNTU::Science::Medicine::Biomedical engineering A facile and phase-controlled synthesis of α-NiS nanoparticles (NPs) embedded in carbon nanorods (CRs) is reported by in-situ sulfurating the preformed Ni/CRs. The nanopore confinement by the carbon matrix is essential for the formation of α-NiS and preventing its transition to β-phase, which is in strong contrast to large aggregated β-NiS particles grown freely without the confinement of CRs. When used as electrochemical electrode, the hybrid electrochemical charge storage of the ultrasmall α-NiS nanoparticels dispersed in CRs is benefit for the high capacitor (1092, 946, 835, 740 F g−1 at current densities of 1, 2, 5, 10 A g−1, respectively.). While the high electrochemical stability (approximately 100% retention of specific capacitance after 2000 charge/discharge cycles) is attributed to the supercapacitor-battery electrode, which makes synergistic effect of capacitor (CRs) and battery (NiS NPs) components rather than a merely additive composite. This work not only suggests a general approach for phase-controlled synthesis of nickel sulfide but also opens the door to the rational design and fabrication of novel nickel-based/carbon hybrid supercapacitor-battery electrode materials. ASTAR (Agency for Sci., Tech. and Research, S’pore) Published version 2015-03-11T06:20:39Z 2019-12-06T22:21:20Z 2015-03-11T06:20:39Z 2019-12-06T22:21:20Z 2014 2014 Journal Article Sun, C., Ma, M., Yang, J., Zhang, Y., Chen, P., Huang, W., et al (2014). Phase-controlled synthesis of α-NiS nanoparticles confined in carbon nanorods for high performance supercapacitors. Scientific reports, 4. 2045-2322 https://hdl.handle.net/10356/106931 http://hdl.handle.net/10220/25230 10.1038/srep07054 25394517 en Scientific reports This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/4.0/ 6 p. application/pdf |
| spellingShingle | DRNTU::Science::Medicine::Biomedical engineering Sun, Chencheng Ma, Mingze Yang, Jun Zhang, Yufei Chen, Peng Huang, Wei Dong, Xiaochen Phase-controlled synthesis of α-NiS nanoparticles confined in carbon nanorods for high performance supercapacitors |
| title | Phase-controlled synthesis of α-NiS nanoparticles confined in carbon nanorods for high performance supercapacitors |
| title_full | Phase-controlled synthesis of α-NiS nanoparticles confined in carbon nanorods for high performance supercapacitors |
| title_fullStr | Phase-controlled synthesis of α-NiS nanoparticles confined in carbon nanorods for high performance supercapacitors |
| title_full_unstemmed | Phase-controlled synthesis of α-NiS nanoparticles confined in carbon nanorods for high performance supercapacitors |
| title_short | Phase-controlled synthesis of α-NiS nanoparticles confined in carbon nanorods for high performance supercapacitors |
| title_sort | phase controlled synthesis of α nis nanoparticles confined in carbon nanorods for high performance supercapacitors |
| topic | DRNTU::Science::Medicine::Biomedical engineering |
| url | https://hdl.handle.net/10356/106931 http://hdl.handle.net/10220/25230 |
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