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Magnetic Electrodeposition of the Hierarchical Cobalt Oxide Nanostructure from Spent Lithium-Ion Batteries: Its Application as a Supercapacitor Electrode

Aboelazm, Eslam A. A. and Ali, Gomaa A. M. and Algarni, H. and Yin, Huajie and Zhong, Yu Lin and K. F., Chong (2018) Magnetic Electrodeposition of the Hierarchical Cobalt Oxide Nanostructure from Spent Lithium-Ion Batteries: Its Application as a Supercapacitor Electrode. Journal of Physical Chemistry C, 122 (23). pp. 12200-12206. ISSN 1932-7447 (print); 1932-7455 (online)

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Abstract

In this study, electrodeposition of cobalt oxide (Co3O4) from spent lithium-ion batteries is successfully enhanced by the magnetic field effect. In the presence of magnetic field, well-defined hierarchical Co3O4 nanostructures with higher electroactive surface area are formed during the electrodeposition process. Electrochemical analysis shows that the enhanced Co3O4 nanostructures exhibit excellent charge storage capabilities of 1273 F g–1 at 1 A g–1, approximately 4 times higher than the electrodeposited Co3O4 that is formed without magnetic field effect. It also reveals the high cycling stability of enhanced Co3O4 nanostructures, with 96% capacitance retention at 5000 charge discharge cycles. The results manifest the enhancement of Co3O4 recovery from spent lithium-ion batteries, which can be the potential electrode material for supercapacitor application.

Item Type: Article
Uncontrolled Keywords: Magnetic Electrodeposition; cobalt oxide; supercapacitor electrode
Subjects: Q Science > Q Science (General)
Faculty/Division: Faculty of Industrial Sciences And Technology
Depositing User: Noorul Farina Arifin
Date Deposited: 20 Sep 2018 04:46
Last Modified: 20 Sep 2018 04:46
URI: http://umpir.ump.edu.my/id/eprint/22152
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