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

    Author(s)
    Aboelazm, Eslam AA
    Ali, Gomaa AM
    Algarni, H
    Yin, Huajie
    Zhong, Yu Lin
    Chong, Kwok Feng
    Griffith University Author(s)
    Zhong, Yulin
    Year published
    2018
    Metadata
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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 ...
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    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.
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    Journal Title
    Journal of Physical Chemistry C
    Volume
    122
    Issue
    23
    DOI
    https://doi.org/10.1021/acs.jpcc.8b03306
    Subject
    Chemical sciences
    Other chemical sciences not elsewhere classified
    Engineering
    Publication URI
    http://hdl.handle.net/10072/380543
    Collection
    • Journal articles

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