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  • Three dimensional iron oxide/graphene aerogel hybrids as all-solid-state flexible supercapacitor electrodes

    Author(s)
    Khattak, Abdul Muqsit
    Yin, Huajie
    Ghazi, Zahid Ali
    Liang, Bin
    Iqbal, Azhar
    Khan, Niaz Ali
    Gao, Yan
    Li, Lianshan
    Tang, Zhiyong
    Griffith University Author(s)
    Tang, Zhiyong
    Yin, Huajie
    Year published
    2016
    Metadata
    Show full item record
    Abstract
    Three dimensional (3D) iron oxide (Fe2O3)/graphene aerogel (GA) hybrid (Fe2O3/GA) was synthesized by a novel in situ hydrothermal method. Due to the high surface area and sponge structure of GA, which facilitate the access of electrolyte to the internal surface of the graphene film, this 3D Fe2O3/GA composite consequently lead to a robust and superior hybrid material with higher capacitance and better rate performance compared to that of the stacked Fe2O3/graphene (Fe2O3/G) hybrid when used as electrode materials in supercapacitors (SCs). Furthermore, a highly flexible all-solid-state symmetric supercapacitor device was ...
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    Three dimensional (3D) iron oxide (Fe2O3)/graphene aerogel (GA) hybrid (Fe2O3/GA) was synthesized by a novel in situ hydrothermal method. Due to the high surface area and sponge structure of GA, which facilitate the access of electrolyte to the internal surface of the graphene film, this 3D Fe2O3/GA composite consequently lead to a robust and superior hybrid material with higher capacitance and better rate performance compared to that of the stacked Fe2O3/graphene (Fe2O3/G) hybrid when used as electrode materials in supercapacitors (SCs). Furthermore, a highly flexible all-solid-state symmetric supercapacitor device was fabricated by two pieces of our Fe2O3/GA hybrid electrode. The device is suitable for different bending angles and delivers a high specific capacitance of 440 F g−1. 90% capacitance was retained over 2200 cycles, indicating good cycling stability. These excellent electrochemical performances suggest that Fe2O3/GA composites have an enormous potential in energy application.
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    Journal Title
    RSC Advances
    Volume
    6
    Issue
    64
    DOI
    https://doi.org/10.1039/c6ra11106h
    Subject
    Chemical sciences
    Macromolecular and materials chemistry not elsewhere classified
    Publication URI
    http://hdl.handle.net/10072/172632
    Collection
    • Journal articles

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