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Self-Assembly of Flexible Free-Standing 3D Porous MoS2-Reduced Graphene Oxide Structure for High-Performance Lithium-Ion Batteries

Journal Article


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Abstract


  • Flexible freestanding electrodes are highly desired to realize wearable/flexible

    batteries as required for the design and production of flexible electronic

    devices. Here, the excellent electrochemical performance and inherent

    flexibility of atomically thin 2D MoS2 along with the self-assembly properties

    of liquid crystalline graphene oxide (LCGO) dispersion are exploited to

    fabricate a porous anode for high-performance lithium ion batteries. Flexible,

    free-standing MoS2–reduced graphene oxide (MG) film with a 3D porous

    structure is fabricated via a facile spontaneous self-assembly process and

    subsequent freeze-drying. This is the first report of a one-pot self-assembly,

    gelation, and subsequent reduction of MoS2/LCGO composite to form a

    flexible, high performance electrode for charge storage. The gelation process

    occurs directly in the mixed dispersion of MoS2 and LCGO nanosheets at a

    low temperature (70 °C) and normal atmosphere (1 atm). The MG film with

    75 wt% of MoS2 exhibits a high reversible capacity of 800 mAh g−1

    at a current

    density of 100 mA g−1

    . It also demonstrates excellent rate capability, and

    excellent cycling stability with no capacity drop over 500 charge/discharge

    cycles at a current density of 400 mA g−1

    .

Authors


  •   Chao, Yunfeng (external author)
  •   Jalili, Rouhollah (external author)
  •   Ge, Yu (external author)
  •   Wang, Caiyun
  •   Zheng, Tian (external author)
  •   Shu, Kewei (external author)
  •   Wallace, Gordon G.

Publication Date


  • 2017

Citation


  • Chao, Y., Jalili, R., Ge, Y., Wang, C., Zheng, T., Shu, K. & Wallace, G. G. (2017). Self-Assembly of Flexible Free-Standing 3D Porous MoS2-Reduced Graphene Oxide Structure for High-Performance Lithium-Ion Batteries. Advanced Functional Materials, 27 (22), 1700234-1-1700234-10.

Scopus Eid


  • 2-s2.0-85019089244

Ro Full-text Url


  • http://ro.uow.edu.au/context/aiimpapers/article/3587/type/native/viewcontent

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2563

Start Page


  • 1700234-1

End Page


  • 1700234-10

Volume


  • 27

Issue


  • 22

Place Of Publication


  • Germany

Abstract


  • Flexible freestanding electrodes are highly desired to realize wearable/flexible

    batteries as required for the design and production of flexible electronic

    devices. Here, the excellent electrochemical performance and inherent

    flexibility of atomically thin 2D MoS2 along with the self-assembly properties

    of liquid crystalline graphene oxide (LCGO) dispersion are exploited to

    fabricate a porous anode for high-performance lithium ion batteries. Flexible,

    free-standing MoS2–reduced graphene oxide (MG) film with a 3D porous

    structure is fabricated via a facile spontaneous self-assembly process and

    subsequent freeze-drying. This is the first report of a one-pot self-assembly,

    gelation, and subsequent reduction of MoS2/LCGO composite to form a

    flexible, high performance electrode for charge storage. The gelation process

    occurs directly in the mixed dispersion of MoS2 and LCGO nanosheets at a

    low temperature (70 °C) and normal atmosphere (1 atm). The MG film with

    75 wt% of MoS2 exhibits a high reversible capacity of 800 mAh g−1

    at a current

    density of 100 mA g−1

    . It also demonstrates excellent rate capability, and

    excellent cycling stability with no capacity drop over 500 charge/discharge

    cycles at a current density of 400 mA g−1

    .

Authors


  •   Chao, Yunfeng (external author)
  •   Jalili, Rouhollah (external author)
  •   Ge, Yu (external author)
  •   Wang, Caiyun
  •   Zheng, Tian (external author)
  •   Shu, Kewei (external author)
  •   Wallace, Gordon G.

Publication Date


  • 2017

Citation


  • Chao, Y., Jalili, R., Ge, Y., Wang, C., Zheng, T., Shu, K. & Wallace, G. G. (2017). Self-Assembly of Flexible Free-Standing 3D Porous MoS2-Reduced Graphene Oxide Structure for High-Performance Lithium-Ion Batteries. Advanced Functional Materials, 27 (22), 1700234-1-1700234-10.

Scopus Eid


  • 2-s2.0-85019089244

Ro Full-text Url


  • http://ro.uow.edu.au/context/aiimpapers/article/3587/type/native/viewcontent

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2563

Start Page


  • 1700234-1

End Page


  • 1700234-10

Volume


  • 27

Issue


  • 22

Place Of Publication


  • Germany