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Nanoengineering to achieve high sodium storage: A case study of carbon coated hierarchical nanoporous TiO2 microfibers

Journal Article


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Abstract


  • Nanoengineering of electrode materials can directly facilitate sodium ion accessibility and transport, thus enhancing electrochemical performance in sodium ion batteries. Here, highly sodium-accessible carbon coated nanoporous TiO2 microfibers have been synthesised via the facile electrospinning technique which can deliver an enhanced capacity of ≈167 mAh g−1 after 450 cycles at current density of 50 mA g−1 and retain a capacity of ≈71 mAh g−1 at the high current rate of 1 A g−1. With the benefits of their porous structure, thin TiO2 inner walls, and the introduction of conductive carbon, the nanoporous TiO2/C microfibers exhibit high ion accessibility, fast Na ion transport, and fast electron transport, thereby leading to the excellent Na-storage properties presented here. Nanostructuring is proven to be a fruitful strategy that can alleviate the reliance on materials’ intrinsic nature; and the electrospinning technique is versatile and cost-effective for the fabrication of such an effective nanoporous microfiber structure.

Authors


  •   Lai, Weihong
  •   Wang, Nu (external author)
  •   Gao, Yuan (external author)
  •   Wang, Yunxiao
  •   Liu, Kai (external author)
  •   Hu, Yemin (external author)
  •   Zhao, Yong (external author)
  •   Chou, Shulei
  •   Jiang, Lei (external author)

Publication Date


  • 2016

Citation


  • Wang, N., Gao, Y., Wang, Y., Liu, K., Lai, W., Hu, Y., Zhao, Y., Chou, S. & Jiang, L. (2016). Nanoengineering to achieve high sodium storage: A case study of carbon coated hierarchical nanoporous TiO2 microfibers. Advanced Science, 3 (8), 1600013-1-1600013-7.

Scopus Eid


  • 2-s2.0-84981543800

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3184&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2163

Start Page


  • 1600013-1

End Page


  • 1600013-7

Volume


  • 3

Issue


  • 8

Abstract


  • Nanoengineering of electrode materials can directly facilitate sodium ion accessibility and transport, thus enhancing electrochemical performance in sodium ion batteries. Here, highly sodium-accessible carbon coated nanoporous TiO2 microfibers have been synthesised via the facile electrospinning technique which can deliver an enhanced capacity of ≈167 mAh g−1 after 450 cycles at current density of 50 mA g−1 and retain a capacity of ≈71 mAh g−1 at the high current rate of 1 A g−1. With the benefits of their porous structure, thin TiO2 inner walls, and the introduction of conductive carbon, the nanoporous TiO2/C microfibers exhibit high ion accessibility, fast Na ion transport, and fast electron transport, thereby leading to the excellent Na-storage properties presented here. Nanostructuring is proven to be a fruitful strategy that can alleviate the reliance on materials’ intrinsic nature; and the electrospinning technique is versatile and cost-effective for the fabrication of such an effective nanoporous microfiber structure.

Authors


  •   Lai, Weihong
  •   Wang, Nu (external author)
  •   Gao, Yuan (external author)
  •   Wang, Yunxiao
  •   Liu, Kai (external author)
  •   Hu, Yemin (external author)
  •   Zhao, Yong (external author)
  •   Chou, Shulei
  •   Jiang, Lei (external author)

Publication Date


  • 2016

Citation


  • Wang, N., Gao, Y., Wang, Y., Liu, K., Lai, W., Hu, Y., Zhao, Y., Chou, S. & Jiang, L. (2016). Nanoengineering to achieve high sodium storage: A case study of carbon coated hierarchical nanoporous TiO2 microfibers. Advanced Science, 3 (8), 1600013-1-1600013-7.

Scopus Eid


  • 2-s2.0-84981543800

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3184&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2163

Start Page


  • 1600013-1

End Page


  • 1600013-7

Volume


  • 3

Issue


  • 8