Wong, Christelle Pau Ping and Lee, Kian Mun and Lai, Chin Wei (2017) Hydrothermal preparation of reduced graphene oxide/tungsten trioxide nanocomposites with enhanced electrochemical performance. Journal of Materials Science: Materials in Electronics, 28 (19). pp. 14554-14567. ISSN 0957-4522, DOI https://doi.org/10.1007/s10854-017-7319-2.
Full text not available from this repository.Abstract
A series of rGO/WO3 nanocomposites have been synthesized in this study using the single-step hydrothermal approach by varying the concentration of WO3 for supercapacitor applications. Accordingly, the effect of different WO3 contents on the electrochemical performance of rGO/WO3 was extensively studied. It was noteworthy that rGO/WO3 nanocomposite with mass ratio of 1:100 showed the highest specific capacitance (i.e., 274 F g−1 at current density of 0.7 A g−1) at 150 °C with a reaction time of 20 h. By careful control of the synthesis parameters, rGO/WO3 with fibers-like structure could be obtained. Correspondingly, this structure can lower the resistance and shorten the diffusion pathway coupled with offering more reactive sites for electrolyte. A possible growth mechanism of WO3 deposited on rGO was also proposed in the presence work. Additionally, this piece of work also provided a better understanding the roles of fiber-like WO3 anchored on rGO/WO3 nanocomposites for efficient electrochemical capacitor.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | Diffusion pathways; Electrochemical capacitor; Electrochemical performance; Hydrothermal preparation; Reduced graphene oxides; Specific capacitance; Supercapacitor application; Synthesis parameters |
| Subjects: | Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 22 Oct 2019 03:55 |
| Last Modified: | 22 Oct 2019 03:55 |
| URI: | http://eprints.um.edu.my/id/eprint/22800 |
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