Skip to main content
placeholder image

Single crystal polyoxoniobate derived NbO/Cu nanocrystalline@N-doped carbon loaded onto reduced graphene oxide enabling high rate and high capacity Li/Na storage

Journal Article


Abstract


  • The push for high performing electronic devices with long battery lives has rapidly advanced the field of energy storage systems. Niobium oxides have stood out as promising candidates to improve the storage and rate performance of anodes in lithium- and especially sodium-ion batteries due to their larger interplanar lattice spacing and patulous framework. Herein, we report the first synthesis of a nanosized metal/metal oxide hybrid composite coated by N-doped carbon and anchored onto reduced graphene oxide (NbO/Cu@NC-RGO) through in situ carbonizing of Cu-doped polyoxoniobate precursors. The strong synergistic effects between the uniformly distributed NbO/Cu hybrid nanoparticles, the N-doped carbon coating layer, and graphene substrates not only ensure efficient electron and ion transport, but also boost pseudocapacitive charge storage. The resulting composite exhibits a maximum reversible charge capacity of 580 mA h g-1 after 100 cycles at a current density of 100 mA g-1 when utilized in lithium-ion batteries (LIBs), and 203 mA h g-1 when utilized in sodium-ion batteries (SIBs). For SIBs in particular, a long-lifetime of 1012 cycles is observed when cycled at a high current density of 800 mA g-1. This work represents a promising step forward in the design and preparation of metal oxide composite anodes for LIBs and SIBs.

Authors


  •   Huang, Peng (external author)
  •   Huang, Min (external author)
  •   Hu, Hai (external author)
  •   Zhong, Yuan (external author)
  •   Lai, Chao (external author)
  •   Chou, Shulei

Publication Date


  • 2019

Citation


  • Huang, P., Huang, M., Hu, H., Zhong, Y., Lai, C. & Chou, S. (2019). Single crystal polyoxoniobate derived NbO/Cu nanocrystalline@N-doped carbon loaded onto reduced graphene oxide enabling high rate and high capacity Li/Na storage. Journal of Materials Chemistry A, 7 (46), 26513-26523.

Scopus Eid


  • 2-s2.0-85075816590

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3953

Number Of Pages


  • 10

Start Page


  • 26513

End Page


  • 26523

Volume


  • 7

Issue


  • 46

Place Of Publication


  • United Kingdom

Abstract


  • The push for high performing electronic devices with long battery lives has rapidly advanced the field of energy storage systems. Niobium oxides have stood out as promising candidates to improve the storage and rate performance of anodes in lithium- and especially sodium-ion batteries due to their larger interplanar lattice spacing and patulous framework. Herein, we report the first synthesis of a nanosized metal/metal oxide hybrid composite coated by N-doped carbon and anchored onto reduced graphene oxide (NbO/Cu@NC-RGO) through in situ carbonizing of Cu-doped polyoxoniobate precursors. The strong synergistic effects between the uniformly distributed NbO/Cu hybrid nanoparticles, the N-doped carbon coating layer, and graphene substrates not only ensure efficient electron and ion transport, but also boost pseudocapacitive charge storage. The resulting composite exhibits a maximum reversible charge capacity of 580 mA h g-1 after 100 cycles at a current density of 100 mA g-1 when utilized in lithium-ion batteries (LIBs), and 203 mA h g-1 when utilized in sodium-ion batteries (SIBs). For SIBs in particular, a long-lifetime of 1012 cycles is observed when cycled at a high current density of 800 mA g-1. This work represents a promising step forward in the design and preparation of metal oxide composite anodes for LIBs and SIBs.

Authors


  •   Huang, Peng (external author)
  •   Huang, Min (external author)
  •   Hu, Hai (external author)
  •   Zhong, Yuan (external author)
  •   Lai, Chao (external author)
  •   Chou, Shulei

Publication Date


  • 2019

Citation


  • Huang, P., Huang, M., Hu, H., Zhong, Y., Lai, C. & Chou, S. (2019). Single crystal polyoxoniobate derived NbO/Cu nanocrystalline@N-doped carbon loaded onto reduced graphene oxide enabling high rate and high capacity Li/Na storage. Journal of Materials Chemistry A, 7 (46), 26513-26523.

Scopus Eid


  • 2-s2.0-85075816590

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3953

Number Of Pages


  • 10

Start Page


  • 26513

End Page


  • 26523

Volume


  • 7

Issue


  • 46

Place Of Publication


  • United Kingdom