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Nitrogen-doped graphene ribbon assembled core–sheath MnO@Graphene scrolls as hierarchically ordered 3D porous electrodes for fast and durable lithium storage

Journal Article


Abstract


  • Graphene scroll is an emerging 1D tubular form of graphitic carbon that

    has potential applications in electrochemical energy storage. However, it

    still remains a challenge to composite graphene scrolls with other nanomaterials

    for building advanced electrode configuration with fast and durable

    lithium storage properties. Here, a transition-metal-oxide-based hierarchically

    ordered 3D porous electrode is designed based on assembling 1D

    core–sheath MnO@N-doped graphene scrolls with 2D N-doped graphene

    ribbons. In the resulting architecture, porous MnO nanowires confined in

    tubular graphene scrolls are mechanically isolated but electronically wellconnected,

    while the interwoven graphene ribbons offer continuous conductive

    paths for electron transfer in all directions. Moreover, the elastic

    graphene scrolls together with enough internal voids are able to accommodate

    the volume expansion of the enclosed MnO. Because of these merits,

    the as-built electrode manifests ultrahigh rate capability (349 mAh g−1 at

    8.0 A g−1; 205 mAh g−1 at 15.0 A g−1) and robust cycling stability (812 mAh g−1

    remaining after 1000 cycles at 2.0 A g−1) and is the most efficient MnO-based

    anode ever reported for lithium-ion batteries. This unique multidimensional

    and hierarchically ordered structure design is believed to hold great potential

    in generalizable synthesis of graphene scrolls composited with oxide nanowires

    for mutifuctional energy storage.

Authors


  •   Zhang, Yun (external author)
  •   Chen, Penghui (external author)
  •   Gao, Xu (external author)
  •   Wang, Bo (external author)
  •   Liu, Heng (external author)
  •   Wu, Haobin (external author)
  •   Liu, Hua K.
  •   Dou, Shi Xue

Publication Date


  • 2016

Citation


  • Zhang, Y., Chen, P., Gao, X., Wang, B., Liu, H., Wu, H., Liu, H. & Dou, S. (2016). Nitrogen-doped graphene ribbon assembled core–sheath MnO@Graphene scrolls as hierarchically ordered 3D porous electrodes for fast and durable lithium storage. Advanced Functional Materials, 26 (43), 7754-7765.

Scopus Eid


  • 2-s2.0-84988354644

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2275

Has Global Citation Frequency


Number Of Pages


  • 11

Start Page


  • 7754

End Page


  • 7765

Volume


  • 26

Issue


  • 43

Place Of Publication


  • Germany

Abstract


  • Graphene scroll is an emerging 1D tubular form of graphitic carbon that

    has potential applications in electrochemical energy storage. However, it

    still remains a challenge to composite graphene scrolls with other nanomaterials

    for building advanced electrode configuration with fast and durable

    lithium storage properties. Here, a transition-metal-oxide-based hierarchically

    ordered 3D porous electrode is designed based on assembling 1D

    core–sheath MnO@N-doped graphene scrolls with 2D N-doped graphene

    ribbons. In the resulting architecture, porous MnO nanowires confined in

    tubular graphene scrolls are mechanically isolated but electronically wellconnected,

    while the interwoven graphene ribbons offer continuous conductive

    paths for electron transfer in all directions. Moreover, the elastic

    graphene scrolls together with enough internal voids are able to accommodate

    the volume expansion of the enclosed MnO. Because of these merits,

    the as-built electrode manifests ultrahigh rate capability (349 mAh g−1 at

    8.0 A g−1; 205 mAh g−1 at 15.0 A g−1) and robust cycling stability (812 mAh g−1

    remaining after 1000 cycles at 2.0 A g−1) and is the most efficient MnO-based

    anode ever reported for lithium-ion batteries. This unique multidimensional

    and hierarchically ordered structure design is believed to hold great potential

    in generalizable synthesis of graphene scrolls composited with oxide nanowires

    for mutifuctional energy storage.

Authors


  •   Zhang, Yun (external author)
  •   Chen, Penghui (external author)
  •   Gao, Xu (external author)
  •   Wang, Bo (external author)
  •   Liu, Heng (external author)
  •   Wu, Haobin (external author)
  •   Liu, Hua K.
  •   Dou, Shi Xue

Publication Date


  • 2016

Citation


  • Zhang, Y., Chen, P., Gao, X., Wang, B., Liu, H., Wu, H., Liu, H. & Dou, S. (2016). Nitrogen-doped graphene ribbon assembled core–sheath MnO@Graphene scrolls as hierarchically ordered 3D porous electrodes for fast and durable lithium storage. Advanced Functional Materials, 26 (43), 7754-7765.

Scopus Eid


  • 2-s2.0-84988354644

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2275

Has Global Citation Frequency


Number Of Pages


  • 11

Start Page


  • 7754

End Page


  • 7765

Volume


  • 26

Issue


  • 43

Place Of Publication


  • Germany