Lee, S. P. and Nurul Hafizah, Mohd Saufi and Ellie Yi Lih, Teo and Chong, Kwok Feng (2023) Phenothiazine-functionalized rgo for electrochemical capacitor. Current Science and Technology (CST). pp. 29-34. ISSN 2785-8804. (Published)
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Abstract
The functionalization arose as a technique to improve the physicochemical properties of the reduced graphene oxide (rGO) and consequently enhance the supercapacitor performance. The functionalization compound, phenothiazine (PTZ) introduces nitrogen and sulfur heteroatoms into rGO via the one-pot hydrothermal method. Incorporation of PTZ on the rGO sheets in PTZ-rGO 5 contributes to the high surface area (163.49 m2 g−1) and pore volume (0.3187 cm3 g−1) properties. Contradictory, overloaded PTZ not only shows a lower reduction effect but also reduces the amount of PTZ functionalized in the PTZ-rGO and consequently shows lower electrochemical performance. The excellent properties enable PTZ-rGO 5 enable it to achieve 119.5 F g−1 at 0.5 A g−1 for its specific capacitance and drive it to be the promising electrode material for supercapacitors.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Freeze-drying; Surface modification; EDLC; Pseudocapacitive; Redox activity. |
| Subjects: | Q Science > Q Science (General) T Technology > T Technology (General) |
| Faculty/Division: | Faculty of Industrial Sciences And Technology Institute of Postgraduate Studies |
| Depositing User: | Mr Muhamad Firdaus Janih@Jaini |
| Date Deposited: | 10 Aug 2023 04:50 |
| Last Modified: | 10 Aug 2023 04:50 |
| URI: | http://umpir.ump.edu.my/id/eprint/36633 |
| Download Statistic: | View Download Statistics |
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