Polarity-assisted formation of hollow-frame sheathed nitrogen-doped nanofibrous carbon for supercapacitors
Heteroatom-doped carbon nanostructures with uniform size and morphology, well-designed architectures, and minimized interfacial resistance have been recognized as promising electrode materials for energy storage, but remain a crucial challenge. Herein, we develop a general approach of polarity-induc...
| Main Authors: | , , , , , , , , , , , |
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| 格式: | Journal Article |
| 语言: | English |
| 出版: |
2021
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| 主题: | |
| 在线阅读: | https://hdl.handle.net/10356/151503 |
| _version_ | 1826118620707553280 |
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| author | Gong, Yujiao Chen, Ruyi Xu, Hai Yu, Chenyang Zhao, Xi Sun, Yue Hui, Zengyu Zhou, Jinyuan An, Jianing Du, Zhuzhu Sun, Gengzhi Huang, Wei |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Gong, Yujiao Chen, Ruyi Xu, Hai Yu, Chenyang Zhao, Xi Sun, Yue Hui, Zengyu Zhou, Jinyuan An, Jianing Du, Zhuzhu Sun, Gengzhi Huang, Wei |
| author_sort | Gong, Yujiao |
| collection | NTU |
| description | Heteroatom-doped carbon nanostructures with uniform size and morphology, well-designed architectures, and minimized interfacial resistance have been recognized as promising electrode materials for energy storage, but remain a crucial challenge. Herein, we develop a general approach of polarity-induced decoration of a monolayer sheath of metal-organic framework (MOF) particles with excellent uniformity in size and morphology on electrospun polymer nanofibers. These hybrid nanofibers are facilely converted into nitrogen-doped nanofibrous carbon (denoted as N-NFC) during pyrolysis. The thus-obtained N-NFC features (1) a one-dimensional nanofibrous structure with a highly conductive core, (2) a monolayer sheath of hollow carbon-frames with uniform size and morphology, (3) plenty of micro/mesopores with a highly accessible surface area, and (4) a high N-doping level, all of which guarantee its good electrochemical performance with a high capacitance of 387.3 F g⁻¹ at 1 A g⁻¹. In a solid-state supercapacitor, it delivers excellent rate capability (78.0 F g⁻¹ at 0.2 A g⁻¹ and 64.0 F g⁻¹ at 1 A g⁻¹), an enhanced energy density of 7.9 W h kg⁻¹ at a power density of 219 W kg⁻¹, and outstanding cycling stability with 90% capacity retained over 10 000 cycles at 1 A g⁻¹. |
| first_indexed | 2024-10-01T04:46:48Z |
| format | Journal Article |
| id | ntu-10356/151503 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:46:48Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1515032021-07-23T05:38:23Z Polarity-assisted formation of hollow-frame sheathed nitrogen-doped nanofibrous carbon for supercapacitors Gong, Yujiao Chen, Ruyi Xu, Hai Yu, Chenyang Zhao, Xi Sun, Yue Hui, Zengyu Zhou, Jinyuan An, Jianing Du, Zhuzhu Sun, Gengzhi Huang, Wei School of Mechanical and Aerospace Engineering Engineering::Mechanical engineering Metal-organic Framework Porous Carbon Heteroatom-doped carbon nanostructures with uniform size and morphology, well-designed architectures, and minimized interfacial resistance have been recognized as promising electrode materials for energy storage, but remain a crucial challenge. Herein, we develop a general approach of polarity-induced decoration of a monolayer sheath of metal-organic framework (MOF) particles with excellent uniformity in size and morphology on electrospun polymer nanofibers. These hybrid nanofibers are facilely converted into nitrogen-doped nanofibrous carbon (denoted as N-NFC) during pyrolysis. The thus-obtained N-NFC features (1) a one-dimensional nanofibrous structure with a highly conductive core, (2) a monolayer sheath of hollow carbon-frames with uniform size and morphology, (3) plenty of micro/mesopores with a highly accessible surface area, and (4) a high N-doping level, all of which guarantee its good electrochemical performance with a high capacitance of 387.3 F g⁻¹ at 1 A g⁻¹. In a solid-state supercapacitor, it delivers excellent rate capability (78.0 F g⁻¹ at 0.2 A g⁻¹ and 64.0 F g⁻¹ at 1 A g⁻¹), an enhanced energy density of 7.9 W h kg⁻¹ at a power density of 219 W kg⁻¹, and outstanding cycling stability with 90% capacity retained over 10 000 cycles at 1 A g⁻¹. This work was supported by the National Natural Science Foundation of China (61704076), the Natural Science Foundation of Jiangsu Province (BK20171018), the NanjingTech Start-Up Grant (3983500150), and the Jiangsu Specially-Appointed Professor program (54935012). 2021-07-23T05:38:22Z 2021-07-23T05:38:22Z 2019 Journal Article Gong, Y., Chen, R., Xu, H., Yu, C., Zhao, X., Sun, Y., Hui, Z., Zhou, J., An, J., Du, Z., Sun, G. & Huang, W. (2019). Polarity-assisted formation of hollow-frame sheathed nitrogen-doped nanofibrous carbon for supercapacitors. Nanoscale, 11(5), 2492-2500. https://dx.doi.org/10.1039/c8nr09454c 2040-3364 https://hdl.handle.net/10356/151503 10.1039/c8nr09454c 30672555 2-s2.0-85060922758 5 11 2492 2500 en Nanoscale © 2019 The Royal Society of Chemistry. All rights reserved. |
| spellingShingle | Engineering::Mechanical engineering Metal-organic Framework Porous Carbon Gong, Yujiao Chen, Ruyi Xu, Hai Yu, Chenyang Zhao, Xi Sun, Yue Hui, Zengyu Zhou, Jinyuan An, Jianing Du, Zhuzhu Sun, Gengzhi Huang, Wei Polarity-assisted formation of hollow-frame sheathed nitrogen-doped nanofibrous carbon for supercapacitors |
| title | Polarity-assisted formation of hollow-frame sheathed nitrogen-doped nanofibrous carbon for supercapacitors |
| title_full | Polarity-assisted formation of hollow-frame sheathed nitrogen-doped nanofibrous carbon for supercapacitors |
| title_fullStr | Polarity-assisted formation of hollow-frame sheathed nitrogen-doped nanofibrous carbon for supercapacitors |
| title_full_unstemmed | Polarity-assisted formation of hollow-frame sheathed nitrogen-doped nanofibrous carbon for supercapacitors |
| title_short | Polarity-assisted formation of hollow-frame sheathed nitrogen-doped nanofibrous carbon for supercapacitors |
| title_sort | polarity assisted formation of hollow frame sheathed nitrogen doped nanofibrous carbon for supercapacitors |
| topic | Engineering::Mechanical engineering Metal-organic Framework Porous Carbon |
| url | https://hdl.handle.net/10356/151503 |
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