期刊
JOURNAL OF ENERGY STORAGE
卷 36, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.est.2021.102402
关键词
Co-precipitation; Fe-SnO2@CeO2; Nanocomposite; Asymmetric supercapacitor
资金
- RUSA 2.0 [Alu/RUSA/Ph.D Fellowships/2019, 24-51/2014]
- DST-SERB [EMR/2017/001999]
- DST-FIST [SR/FST/PSI-202/2015]
- UGC-SAP [F.530/18/DRS-III/2015]
- DST-PURSE [SR/PURSE Phase 2/38 (G)]
- King Saud University, Riyadh, Saudi Arabia [RSP-2020/06 06]
- MHRD [SPARC-890 (2019)]
- MHRD (UKIERI)
The study presents an Fe-SnO2@CeO2 electrode with enhanced specific capacitance and cycle stability for supercapacitor applications. The Fe-SnO2@CeO2 nanocomposite exhibits excellent electrochemical performance in a three-electrode system, making it a promising alternative electrode material for high energy storage supercapacitors.
In this work, we report enhanced specific capactance and cycle stability of Fe-SnO2@CeO2 electrode for supercapacitor applications. The Fe-SnO2@CeO2 nanocomposite was synthesized through a simple chemical co-precipitation method. The electrochemical performances of the Fe-SnO2@CeO2 nanocomposite electrode are assessed by using cyclic voltammetry, galvanostatic charge/discharge and impedance spectroscopy techniques. In three electrode system, the Fe-SnO2@CeO2 nanocomposite electrode is exhibited a maximum specific capacitance of 348 F/g at a current density of 1 A/g. Further, the asymmetric supercapacitor (ASC) device performance has been evaluated and the ASC device produces a specific energy and specific power of 32.2 W h kg(-1) and 747 W kg(-1) at a current density of 1A/g, respectively. The device exhibited the capacitance retention of 85.05 % over 5000 cycles of operation. This study confirms that the Fe-SnO2@CeO2 is an alternative electrode material for high energy storage supercapacitor applications.
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