Nanoarchitectured current collector for high rate capability of polyaniline based supercapacitor electrode
Indium tin oxide (ITO) nanowires array was used as current collector and building block for polyaniline based supercapacitor. Thin polyaniline coating was deposited on the nanowires and resulted in the formation of polyaniline ITO coaxial nanowires. This hybrid heterostructure design improved the sp...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2013
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| Online Access: | https://hdl.handle.net/10356/95956 http://hdl.handle.net/10220/10871 |
| _version_ | 1826111471452422144 |
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| author | Sumboja, Afriyanti Wang, Xu Yan, Jian Lee, Pooi See |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Sumboja, Afriyanti Wang, Xu Yan, Jian Lee, Pooi See |
| author_sort | Sumboja, Afriyanti |
| collection | NTU |
| description | Indium tin oxide (ITO) nanowires array was used as current collector and building block for polyaniline based supercapacitor. Thin polyaniline coating was deposited on the nanowires and resulted in the formation of polyaniline ITO coaxial nanowires. This hybrid heterostructure design improved the specific capacitance, rate capability, and cycling stability of the supercapacitor electrode. Good conductivity harnessed by these directly grown ITO nanowires is useful to improve the charge transport during the charge discharge processes which were confirmed by the electrochemical impedance spectroscopy measurement. Electrochemical test in 1 M H2SO4 at 4 A g−1 delivered specific capacitance as high as 738 F g−1. In addition, sub-micron size of the intercoaxial nanowires spacing ensures the fast penetration of electrolyte ions which resulted in the superior rate capability (98% capacitance retention when applied current was varied from 4 to 25 A g−1). The capacitance retention is significantly higher as compared to other polyaniline composite electrodes and it is one of the best reported performances to date for polyaniline based supercapacitor electrodes. This work illustrates a promising platform that can be adopted for other redox nanocomposite materials while reaping the benefit as low cost and binder free electrode material for supercapacitor application. |
| first_indexed | 2024-10-01T02:51:16Z |
| format | Journal Article |
| id | ntu-10356/95956 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:51:16Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/959562020-06-01T10:21:08Z Nanoarchitectured current collector for high rate capability of polyaniline based supercapacitor electrode Sumboja, Afriyanti Wang, Xu Yan, Jian Lee, Pooi See School of Materials Science & Engineering Temasek Laboratories Indium tin oxide (ITO) nanowires array was used as current collector and building block for polyaniline based supercapacitor. Thin polyaniline coating was deposited on the nanowires and resulted in the formation of polyaniline ITO coaxial nanowires. This hybrid heterostructure design improved the specific capacitance, rate capability, and cycling stability of the supercapacitor electrode. Good conductivity harnessed by these directly grown ITO nanowires is useful to improve the charge transport during the charge discharge processes which were confirmed by the electrochemical impedance spectroscopy measurement. Electrochemical test in 1 M H2SO4 at 4 A g−1 delivered specific capacitance as high as 738 F g−1. In addition, sub-micron size of the intercoaxial nanowires spacing ensures the fast penetration of electrolyte ions which resulted in the superior rate capability (98% capacitance retention when applied current was varied from 4 to 25 A g−1). The capacitance retention is significantly higher as compared to other polyaniline composite electrodes and it is one of the best reported performances to date for polyaniline based supercapacitor electrodes. This work illustrates a promising platform that can be adopted for other redox nanocomposite materials while reaping the benefit as low cost and binder free electrode material for supercapacitor application. 2013-07-01T07:30:51Z 2019-12-06T19:23:43Z 2013-07-01T07:30:51Z 2019-12-06T19:23:43Z 2012 2012 Journal Article Sumboja, A., Wang, X., Yan, J., & Lee, P. S. (2012). Nanoarchitectured current collector for high rate capability of polyaniline based supercapacitor electrode. Electrochimica Acta, 65, 190-195. 0013-4686 https://hdl.handle.net/10356/95956 http://hdl.handle.net/10220/10871 10.1016/j.electacta.2012.01.046 en Electrochimica acta © 2012 Elsevier Ltd. |
| spellingShingle | Sumboja, Afriyanti Wang, Xu Yan, Jian Lee, Pooi See Nanoarchitectured current collector for high rate capability of polyaniline based supercapacitor electrode |
| title | Nanoarchitectured current collector for high rate capability of polyaniline based supercapacitor electrode |
| title_full | Nanoarchitectured current collector for high rate capability of polyaniline based supercapacitor electrode |
| title_fullStr | Nanoarchitectured current collector for high rate capability of polyaniline based supercapacitor electrode |
| title_full_unstemmed | Nanoarchitectured current collector for high rate capability of polyaniline based supercapacitor electrode |
| title_short | Nanoarchitectured current collector for high rate capability of polyaniline based supercapacitor electrode |
| title_sort | nanoarchitectured current collector for high rate capability of polyaniline based supercapacitor electrode |
| url | https://hdl.handle.net/10356/95956 http://hdl.handle.net/10220/10871 |
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