Thalji, Mohammad R. and Ali, Gomaa A. M. and Liu, Porun and Zhong, Yu Lin and K. F., Chong (2021) W18O49 nanowires-graphene nanocomposite for asymmetric supercapacitors employing AlCl3 aqueous electrolyte. Chemical Engineering Journal, 409 (128216). pp. 1-11. ISSN 1385-8947. (Published)
![[img]](http://umpir.ump.edu.my/style/images/fileicons/other.png) |
Pdf
W18O49 nanowires-graphene nanocomposite.pdf Restricted to Repository staff only Download (10MB) | Request a copy |
Abstract
W18O49 nanowires (NWs)-reduced graphene oxide (rGO) nanocomposite is examined as a new active material for supercapacitors electrode, which reveals its high specific capacitance and excellent rate performance in AlCl3 aqueous electrolyte. Electrochemical studies show that the presence of rGO enhances Al3+ ions diffusion in the nanocomposite, thus provides more ions for intercalation pseudocapacitance. The fabrication of asymmetric supercapacitor W18O49 NWs-rGO//rGO demonstrates high specific capacitance of 365.5 F g−1 at 1 A g−1 and excellent cycling stability with 96.7% capacitance retention at 12,000 cycles. Interestingly, it delivers high energy density of 28.5 Wh kg−1 and power density of 751 W kg−1, which is the highest energy density value for all reported W18O49-based supercapacitor device. The work explores W18O49 NWs-rGO nanocomposite as a new electrode material for supercapacitors application with superior electrochemical performance, which may open up a new direction for high-performance energy storage in Al3+ electrolyte.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Asymmetric supercapacitor; Energy density; Graphene; Intercalation pseudocapacitance; Tungsten oxide |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Faculty/Division: | Faculty of Industrial Sciences And Technology |
| Depositing User: | Noorul Farina Arifin |
| Date Deposited: | 14 Sep 2021 03:09 |
| Last Modified: | 14 Sep 2021 03:09 |
| URI: | http://umpir.ump.edu.my/id/eprint/32019 |
| Download Statistic: | View Download Statistics |
Actions (login required)
 |
View Item |