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Bi-functional nitrogen-doped carbon protective layer on three-dimensional RGO/SnO2 composites with enhanced electron transport and structural stability for high-performance lithium-ion batteries

Journal Article


Abstract


  • Three-dimensional reduced graphene oxide@SnO2@nitrogen-doped carbon (3DG@SnO2@N-C) composites

    are designed as high efficiency anode materials for lithium-ion batteries. The SnO2 particle size, surface

    area and pore size distribution of the 3DG@SnO2@N-C could be simply controlled by altering the GO

    dosages. The optimized 3DG@SnO2@N-C electrode demonstrates a reversible capacity of 1349.5 mAh g-1

    after 100 cycles at the current density of 100 mA g-1. Based on the structural and electrochemical

    dynamic tests, the bi-functional N-doped carbon coating layer could serve as both conductive channel

    for electron transport and as buffer layer to alleviate the volume change of embedded SnO2 NPs. In addition,

    the cross-linked conducting 3DG with porous structure attributes to the reduced electron transport

    and Li ion diffusion resistances, which finally leads to the enhanced cycling stability and rate

    performances.

UOW Authors


  •   Yang, Dongxiao (external author)
  •   Ren, Haoyu (external author)
  •   Wu, Dapeng (external author)
  •   Zhang, Wenchao (external author)
  •   Lou, Xiangdong (external author)
  •   Wang, Danqi (external author)
  •   Cao, Kun (external author)
  •   Gao, Zhiyong (external author)
  •   Xu, Fang (external author)
  •   Jiang, Kai (external author)

Publication Date


  • 2019

Citation


  • Yang, D., Ren, H., Wu, D., Zhang, W., Lou, X., Wang, D., Cao, K., Gao, Z., Xu, F. & Jiang, K. (2019). Bi-functional nitrogen-doped carbon protective layer on three-dimensional RGO/SnO2 composites with enhanced electron transport and structural stability for high-performance lithium-ion batteries. Journal of Colloid and Interface Science, 542 81-90.

Scopus Eid


  • 2-s2.0-85060992505

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3467

Number Of Pages


  • 9

Start Page


  • 81

End Page


  • 90

Volume


  • 542

Place Of Publication


  • United States

Abstract


  • Three-dimensional reduced graphene oxide@SnO2@nitrogen-doped carbon (3DG@SnO2@N-C) composites

    are designed as high efficiency anode materials for lithium-ion batteries. The SnO2 particle size, surface

    area and pore size distribution of the 3DG@SnO2@N-C could be simply controlled by altering the GO

    dosages. The optimized 3DG@SnO2@N-C electrode demonstrates a reversible capacity of 1349.5 mAh g-1

    after 100 cycles at the current density of 100 mA g-1. Based on the structural and electrochemical

    dynamic tests, the bi-functional N-doped carbon coating layer could serve as both conductive channel

    for electron transport and as buffer layer to alleviate the volume change of embedded SnO2 NPs. In addition,

    the cross-linked conducting 3DG with porous structure attributes to the reduced electron transport

    and Li ion diffusion resistances, which finally leads to the enhanced cycling stability and rate

    performances.

UOW Authors


  •   Yang, Dongxiao (external author)
  •   Ren, Haoyu (external author)
  •   Wu, Dapeng (external author)
  •   Zhang, Wenchao (external author)
  •   Lou, Xiangdong (external author)
  •   Wang, Danqi (external author)
  •   Cao, Kun (external author)
  •   Gao, Zhiyong (external author)
  •   Xu, Fang (external author)
  •   Jiang, Kai (external author)

Publication Date


  • 2019

Citation


  • Yang, D., Ren, H., Wu, D., Zhang, W., Lou, X., Wang, D., Cao, K., Gao, Z., Xu, F. & Jiang, K. (2019). Bi-functional nitrogen-doped carbon protective layer on three-dimensional RGO/SnO2 composites with enhanced electron transport and structural stability for high-performance lithium-ion batteries. Journal of Colloid and Interface Science, 542 81-90.

Scopus Eid


  • 2-s2.0-85060992505

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3467

Number Of Pages


  • 9

Start Page


  • 81

End Page


  • 90

Volume


  • 542

Place Of Publication


  • United States