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Hierarchically stacked reduced graphene oxide/carbon nanotubes for as high performance anode for sodium-ion batteries

Journal Article


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Abstract


  • Sodium has attracted an increasing amount of attention as an alternative element to lithium for energy storage due to its low cost and wide distribution, although the intercalation problem for sodium ions in conventional anode materials, due to their larger ionic size, still has to be overcome in order to utilize this element. Herein, we report a carbon-based hybrid material that is composed of stacked reduced graphene oxide/carbon nanotubes (rGO/CNTs) with a hierarchical and open structure to accommodate Na ions, which was fabricated by a liquid-phase oxidative exfoliation and subsequent reduction. This rGO/CNTs hybrid material features a hierarchical nanostructure with rGO nanosheets homogeneously spaced by monodisperse CNTs. The increased interlayer space between individual rGO nanosheets, which resulted from the inserted CNTs, is beneficial for highly efficient and reversible Na ion intercalation, leading to a high and stable capacity of 295 mAhg −1 at 50 mAg −1 for 200 cycles.

Authors


  •   Feng, Jianmin (external author)
  •   Dong, Lei (external author)
  •   Li, Xifei (external author)
  •   Li, Dejun (external author)
  •   Lu, Pengyi (external author)
  •   Hou, Feng (external author)
  •   Liang, Ji
  •   Dou, Shi Xue

Publication Date


  • 2019

Citation


  • Feng, J., Dong, L., Li, X., Li, D., Lu, P., Hou, F., Liang, J. & Dou, S. Xue. (2019). Hierarchically stacked reduced graphene oxide/carbon nanotubes for as high performance anode for sodium-ion batteries. Electrochimica Acta, 302 65-70.

Scopus Eid


  • 2-s2.0-85061653716

Ro Full-text Url


  • https://ro.uow.edu.au/cgi/viewcontent.cgi?article=4540&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3486

Has Global Citation Frequency


Number Of Pages


  • 5

Start Page


  • 65

End Page


  • 70

Volume


  • 302

Place Of Publication


  • United Kingdom

Abstract


  • Sodium has attracted an increasing amount of attention as an alternative element to lithium for energy storage due to its low cost and wide distribution, although the intercalation problem for sodium ions in conventional anode materials, due to their larger ionic size, still has to be overcome in order to utilize this element. Herein, we report a carbon-based hybrid material that is composed of stacked reduced graphene oxide/carbon nanotubes (rGO/CNTs) with a hierarchical and open structure to accommodate Na ions, which was fabricated by a liquid-phase oxidative exfoliation and subsequent reduction. This rGO/CNTs hybrid material features a hierarchical nanostructure with rGO nanosheets homogeneously spaced by monodisperse CNTs. The increased interlayer space between individual rGO nanosheets, which resulted from the inserted CNTs, is beneficial for highly efficient and reversible Na ion intercalation, leading to a high and stable capacity of 295 mAhg −1 at 50 mAg −1 for 200 cycles.

Authors


  •   Feng, Jianmin (external author)
  •   Dong, Lei (external author)
  •   Li, Xifei (external author)
  •   Li, Dejun (external author)
  •   Lu, Pengyi (external author)
  •   Hou, Feng (external author)
  •   Liang, Ji
  •   Dou, Shi Xue

Publication Date


  • 2019

Citation


  • Feng, J., Dong, L., Li, X., Li, D., Lu, P., Hou, F., Liang, J. & Dou, S. Xue. (2019). Hierarchically stacked reduced graphene oxide/carbon nanotubes for as high performance anode for sodium-ion batteries. Electrochimica Acta, 302 65-70.

Scopus Eid


  • 2-s2.0-85061653716

Ro Full-text Url


  • https://ro.uow.edu.au/cgi/viewcontent.cgi?article=4540&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3486

Has Global Citation Frequency


Number Of Pages


  • 5

Start Page


  • 65

End Page


  • 70

Volume


  • 302

Place Of Publication


  • United Kingdom