Pal, Bhupender and Krishnan, Syam G. and Vijayan, Bincy Lathakumary and Harilal, Midhun and Yang, Chun-Chen and Ezema, Fabian I. and M. M., Yusoff and Rajan, Jose (2018) In situ encapsulation of tin oxide and cobalt oxide composite in porous carbon for high-performance energy storage applications. Journal of Electroanalytical Chemistry, 817. pp. 217-225. ISSN 1572-6657. (Published)
|
Pdf
In situ encapsulation of tin oxide and cobalt oxide composite in porous carbon.pdf Download (280kB) | Preview |
Abstract
Herein, we report the preparation of porous carbon from palm kernel shell and loading of tin oxide‑cobalt oxide in its pores using a facile in-situ encapsulation synthesis strategy. The as-synthesized SnO2/Co3O4@C composite was characterized by powder X-ray diffraction, X-ray photoelectron spectroscopy and field-emission scanning electron microscopy techniques. This composite was used as an electrode for supercapacitors. Electrochemical charge storage capabilities of the composite were measured using cyclic voltammetry, charge-discharge cycling and electrochemical impedance spectroscopy in aqueous 6 M KOH and 1 M Na2SO4 electrolytes. The SnO2/Co3O4@C composite showed over 70% higher specific capacitance (177 F g−1) than the pure porous carbon (106 F g−1) in 6 M KOH. Among these electrolytes, the composite exhibited an enhanced electrochemical performance in KOH electrolyte due to its smaller hydrated ion radius, high ionic mobility and lower equivalent series resistance than Na2SO4.
| Item Type: | Article |
|---|---|
| Additional Information: | Indexed by Scopus |
| Uncontrolled Keywords: | Electrochemical double layer capacitors; Pseudocapacitors; Hybrid Capacitors; Renewable Energy; Charge storage materials |
| Subjects: | Q Science > Q Science (General) |
| Faculty/Division: | Faculty of Industrial Sciences And Technology |
| Depositing User: | Mrs. Neng Sury Sulaiman |
| Date Deposited: | 28 Jan 2019 08:40 |
| Last Modified: | 28 Jan 2019 08:40 |
| URI: | http://umpir.ump.edu.my/id/eprint/23045 |
| Download Statistic: | View Download Statistics |
Actions (login required)
 |
View Item |