Porous polyaniline/carbon nanotube composite electrode for supercapacitors with outstanding rate capability and cyclic stability
Polyaniline (PANI) is one of the most widely used organic electrode materials for supercapacitors. It has advantages such as good environmental stability and low cost, whereas it is difficult to achieve high capacitance, good rate capability and long cycle life simultaneously. In this work, a series...
| Main Authors: | , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2021
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| Online Access: | https://hdl.handle.net/10356/150379 |
| _version_ | 1826113786373734400 |
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| author | Che, Boyang Li, Hui Zhou, Dan Zhang, Youfang Zeng, Zhihui Zhao, Chenyang He, Chaobin Liu, Erjia Lu, Xuehong |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Che, Boyang Li, Hui Zhou, Dan Zhang, Youfang Zeng, Zhihui Zhao, Chenyang He, Chaobin Liu, Erjia Lu, Xuehong |
| author_sort | Che, Boyang |
| collection | NTU |
| description | Polyaniline (PANI) is one of the most widely used organic electrode materials for supercapacitors. It has advantages such as good environmental stability and low cost, whereas it is difficult to achieve high capacitance, good rate capability and long cycle life simultaneously. In this work, a series of porous polyaniline/carbon nanotube (PANI/CNT) composite materials are prepared by chemically grafting PANI on CNTs and creating interpenetrating pores via templating using CaCO₃ nanoparticles, and then studied as electrode materials for supercapacitors. As PANI is covalently grafted on CNT networks formed in the electrode, the delocalization of electrons improves electron transport in the electrode and the stability of PANI in redox cycling process. The porous morphology created provides sufficient channels for the transport of ions. As a result, the optimized PANI/CNT composite exhibits a high capacitance of 1266 F g⁻¹ at a specific current of 1 A g⁻¹, and even at a specific current of 128 A g⁻¹ the specific capacitance could reach 864 F g⁻¹. Moreover, after cycling tests of 10,000 cycles, it remains 83% of its capacitance at the first cycle. The excellent rate performance and cycle stability of the porous PANI/CNT composite makes it a promising high-performance electrode material for supercapacitors. |
| first_indexed | 2024-10-01T03:28:35Z |
| format | Journal Article |
| id | ntu-10356/150379 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:28:35Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1503792021-06-11T02:21:22Z Porous polyaniline/carbon nanotube composite electrode for supercapacitors with outstanding rate capability and cyclic stability Che, Boyang Li, Hui Zhou, Dan Zhang, Youfang Zeng, Zhihui Zhao, Chenyang He, Chaobin Liu, Erjia Lu, Xuehong School of Materials Science and Engineering Interdisciplinary Graduate School (IGS) School of Mechanical and Aerospace Engineering Energy Research Institute @ NTU (ERI@N) Engineering::Materials Hybrid Nano-structures Polyaniline (PANI) is one of the most widely used organic electrode materials for supercapacitors. It has advantages such as good environmental stability and low cost, whereas it is difficult to achieve high capacitance, good rate capability and long cycle life simultaneously. In this work, a series of porous polyaniline/carbon nanotube (PANI/CNT) composite materials are prepared by chemically grafting PANI on CNTs and creating interpenetrating pores via templating using CaCO₃ nanoparticles, and then studied as electrode materials for supercapacitors. As PANI is covalently grafted on CNT networks formed in the electrode, the delocalization of electrons improves electron transport in the electrode and the stability of PANI in redox cycling process. The porous morphology created provides sufficient channels for the transport of ions. As a result, the optimized PANI/CNT composite exhibits a high capacitance of 1266 F g⁻¹ at a specific current of 1 A g⁻¹, and even at a specific current of 128 A g⁻¹ the specific capacitance could reach 864 F g⁻¹. Moreover, after cycling tests of 10,000 cycles, it remains 83% of its capacitance at the first cycle. The excellent rate performance and cycle stability of the porous PANI/CNT composite makes it a promising high-performance electrode material for supercapacitors. 2021-06-11T02:21:22Z 2021-06-11T02:21:22Z 2019 Journal Article Che, B., Li, H., Zhou, D., Zhang, Y., Zeng, Z., Zhao, C., He, C., Liu, E. & Lu, X. (2019). Porous polyaniline/carbon nanotube composite electrode for supercapacitors with outstanding rate capability and cyclic stability. Composites Part B : Engineering, 165, 671-678. https://dx.doi.org/10.1016/j.compositesb.2019.02.026 1359-8368 https://hdl.handle.net/10356/150379 10.1016/j.compositesb.2019.02.026 2-s2.0-85061646840 165 671 678 en Composites Part B : Engineering © 2019 Elsevier Ltd. All rights reserved. |
| spellingShingle | Engineering::Materials Hybrid Nano-structures Che, Boyang Li, Hui Zhou, Dan Zhang, Youfang Zeng, Zhihui Zhao, Chenyang He, Chaobin Liu, Erjia Lu, Xuehong Porous polyaniline/carbon nanotube composite electrode for supercapacitors with outstanding rate capability and cyclic stability |
| title | Porous polyaniline/carbon nanotube composite electrode for supercapacitors with outstanding rate capability and cyclic stability |
| title_full | Porous polyaniline/carbon nanotube composite electrode for supercapacitors with outstanding rate capability and cyclic stability |
| title_fullStr | Porous polyaniline/carbon nanotube composite electrode for supercapacitors with outstanding rate capability and cyclic stability |
| title_full_unstemmed | Porous polyaniline/carbon nanotube composite electrode for supercapacitors with outstanding rate capability and cyclic stability |
| title_short | Porous polyaniline/carbon nanotube composite electrode for supercapacitors with outstanding rate capability and cyclic stability |
| title_sort | porous polyaniline carbon nanotube composite electrode for supercapacitors with outstanding rate capability and cyclic stability |
| topic | Engineering::Materials Hybrid Nano-structures |
| url | https://hdl.handle.net/10356/150379 |
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