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    High performance porous iron oxide-carbon nanotube nanocomposite as an anode material for lithium-ion batteries

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    Fulltext not available
    Authors
    Lin, Q.
    Wang, J.
    Zhong, Y.
    Sunarso, J.
    Tadé, M.
    Li, L.
    Shao, Zongping
    Date
    2016
    Type
    Journal Article
    
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    Citation
    Lin, Q. and Wang, J. and Zhong, Y. and Sunarso, J. and Tadé, M. and Li, L. and Shao, Z. 2016. High performance porous iron oxide-carbon nanotube nanocomposite as an anode material for lithium-ion batteries. Electrochimica Acta. 212: pp. 179-186.
    Source Title
    Electrochimica Acta
    DOI
    10.1016/j.electacta.2016.06.135
    ISSN
    0013-4686
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/47511
    Collection
    • Curtin Research Publications
    Abstract

    Here, we showed that relatively high content of Fe3O4 nanoparticles (up to 83 wt. %) can be homogeneously dispersed into carbon nanotubes (CNTs) conductive networks using non-aqueous media by refluxing method. Three different Fe3O4-CNTs composites were prepared, i.e., Fe3O4-CNTs-50, Fe3O4-CNTs-80 and Fe3O4-CNTs-90 that contain increasing amount of Fe3O4 from 50 wt. % to 83 wt. % and to 89 wt. %. These composites have higher surface area and higher pore volume than Fe3O4 component due to CNTs content. The best composite, i.e., Fe3O4-CNTs-80 demonstrated negligible capacity loss up to 100 cycles and high discharge capacity of 930 mA h g−1 at 100th cycle and 100 mA g−1 current discharge rate. This composite also exhibited excellent rate capability where up to the 78.8% of original capacity can be retained at high current discharge rate of 1000 mA g−1. These performances were enabled by a unique porous architecture based on homogenous dispersion of Fe3O4 nanoparticles into CNTs networks that leads to short Li+ diffusion path, high electric conductivity and buffering space to accommodate large volume change of Fe3O4 component during the charge-discharge processes.

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