High Performance Supercapacitors Based on Mesopore Structured Multiwalled Carbon Nanotubes
Abstract A 3D CNT/few layered graphene construct (CNT−FLG) with mesopore structure was fabricated and applied in supercapacitors. The structure was acquired through a two‐step method. Firstly, commercial multiwalled carbon nanotubes (MCNTs) were oxidized in a mixed solution of concentrated acid and...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2021-03-01
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| Series: | ChemistryOpen |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/open.202000274 |
| _version_ | 1818677155449536512 |
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| author | Yang Xu Weili Shi Ruguang Li Zheng Qiao Jian Fang Quanling Yang Chuanxi Xiong |
| author_facet | Yang Xu Weili Shi Ruguang Li Zheng Qiao Jian Fang Quanling Yang Chuanxi Xiong |
| author_sort | Yang Xu |
| collection | DOAJ |
| description | Abstract A 3D CNT/few layered graphene construct (CNT−FLG) with mesopore structure was fabricated and applied in supercapacitors. The structure was acquired through a two‐step method. Firstly, commercial multiwalled carbon nanotubes (MCNTs) were oxidized in a mixed solution of concentrated acid and modified with a couple of long‐chain organic ions. Second, the above resultant product was carbonized at a high temperature. The achieved structure offers a 3D interconnected electrically conductive network as well as mesopore structure. It also significantly improves the specific surface area of MCNTs. Result of BET tests showed that the specific surface area of CNT−FLG reached to 2235 m2/g. When acted as electrode materials in a supercapacitor structure, specific capacitance was approximately 531.2 F/g at a current density of 0.8 A/g. At current density of 50 A/g, specific capacitance remained 204.4 F/g. Besides, the capacitance retention was as high as 96.18 % after 10000 cycles at the current density of 5 A/g. |
| first_indexed | 2024-12-17T08:54:52Z |
| format | Article |
| id | doaj.art-8780d400a6a04403bf0b4e898748f4fd |
| institution | Directory Open Access Journal |
| issn | 2191-1363 |
| language | English |
| last_indexed | 2024-12-17T08:54:52Z |
| publishDate | 2021-03-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | ChemistryOpen |
| spelling | doaj.art-8780d400a6a04403bf0b4e898748f4fd2022-12-21T21:55:59ZengWiley-VCHChemistryOpen2191-13632021-03-0110334735110.1002/open.202000274High Performance Supercapacitors Based on Mesopore Structured Multiwalled Carbon NanotubesYang Xu0Weili Shi1Ruguang Li2Zheng Qiao3Jian Fang4Quanling Yang5Chuanxi Xiong6Huanggang Normal University Xingang 2nd Avy Huanggang 438000 ChinaHuanggang Normal University Xingang 2nd Avy Huanggang 438000 ChinaHuanggang Normal University Xingang 2nd Avy Huanggang 438000 ChinaHuanggang Normal University Xingang 2nd Avy Huanggang 438000 ChinaHuanggang Normal University Xingang 2nd Avy Huanggang 438000 ChinaWuhan University of Technology Luoshi Road 122 Wuhan 430070 ChinaWuhan University of Technology Luoshi Road 122 Wuhan 430070 ChinaAbstract A 3D CNT/few layered graphene construct (CNT−FLG) with mesopore structure was fabricated and applied in supercapacitors. The structure was acquired through a two‐step method. Firstly, commercial multiwalled carbon nanotubes (MCNTs) were oxidized in a mixed solution of concentrated acid and modified with a couple of long‐chain organic ions. Second, the above resultant product was carbonized at a high temperature. The achieved structure offers a 3D interconnected electrically conductive network as well as mesopore structure. It also significantly improves the specific surface area of MCNTs. Result of BET tests showed that the specific surface area of CNT−FLG reached to 2235 m2/g. When acted as electrode materials in a supercapacitor structure, specific capacitance was approximately 531.2 F/g at a current density of 0.8 A/g. At current density of 50 A/g, specific capacitance remained 204.4 F/g. Besides, the capacitance retention was as high as 96.18 % after 10000 cycles at the current density of 5 A/g.https://doi.org/10.1002/open.2020002743D carbon-based materialselectrode materialsorganic oligomersmultiwalled carbon nanotubessupercapacitors |
| spellingShingle | Yang Xu Weili Shi Ruguang Li Zheng Qiao Jian Fang Quanling Yang Chuanxi Xiong High Performance Supercapacitors Based on Mesopore Structured Multiwalled Carbon Nanotubes ChemistryOpen 3D carbon-based materials electrode materials organic oligomers multiwalled carbon nanotubes supercapacitors |
| title | High Performance Supercapacitors Based on Mesopore Structured Multiwalled Carbon Nanotubes |
| title_full | High Performance Supercapacitors Based on Mesopore Structured Multiwalled Carbon Nanotubes |
| title_fullStr | High Performance Supercapacitors Based on Mesopore Structured Multiwalled Carbon Nanotubes |
| title_full_unstemmed | High Performance Supercapacitors Based on Mesopore Structured Multiwalled Carbon Nanotubes |
| title_short | High Performance Supercapacitors Based on Mesopore Structured Multiwalled Carbon Nanotubes |
| title_sort | high performance supercapacitors based on mesopore structured multiwalled carbon nanotubes |
| topic | 3D carbon-based materials electrode materials organic oligomers multiwalled carbon nanotubes supercapacitors |
| url | https://doi.org/10.1002/open.202000274 |
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