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...

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Main Authors: Gong, Yujiao, Chen, Ruyi, Xu, Hai, Yu, Chenyang, Zhao, Xi, Sun, Yue, Hui, Zengyu, Zhou, Jinyuan, An, Jianing, Du, Zhuzhu, Sun, Gengzhi, Huang, Wei
Other Authors: School of Mechanical and Aerospace Engineering
Format: Article
Language:English
Published: 2021
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Online Access:https://hdl.handle.net/10356/151503
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.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.
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Mechanical engineering
Metal-organic Framework
Porous Carbon
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
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.
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
format Article
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
author_sort Gong, Yujiao
title 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_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_sort polarity-assisted formation of hollow-frame sheathed nitrogen-doped nanofibrous carbon for supercapacitors
publishDate 2021
url https://hdl.handle.net/10356/151503
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