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Superior sodium-ion storage performance of Co3O4@nitrogen-doped carbon: derived from a metal–organic framework

Journal Article


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Abstract


  • Nitrogen-doped carbon coated Co

    3

    O

    4

    nanoparticles (Co

    3

    O

    4

    @NC) with high Na-ion storage capacity and

    unprecedented long-life cycling stability are reported in this paper. The Co

    3

    O

    4

    @NC was derived from

    a metal

    organic framework ZIF-67, where the Co ions and organic linkers were, respectively, converted

    to Co

    3

    O

    4

    nanoparticle cores and nitrogen-doped carbon shells through a controlled two-step annealing

    process. The Co

    3

    O

    4

    @NC shows a porous nature with a surface area of 101 m

    2

    g

    1

    . When applied as an

    anode for sodium ion batteries (SIBs), Co

    3

    O

    4

    @NC delivers a high reversible capacity of 506, 317, and 263

    mA h g

    1

    at 100, 400, and 1000 mA g

    1

    , respectively. A capacity degradation of 0.03% per cycle over

    1100 cycles was achieved at a high current density of 1000 mA g

    1

    . The outstanding Na-ion storage

    performance can be ascribed to the nitrogen-doped carbon coating (NC), which facilitates the capacitive

    reaction, minimizes the volume changes of Co

    3

    O

    4

    , and also enhances the electronic conductivity. This

    work sheds light on how to develop high-performance metal oxide@NC nanocomposites for SIBs

Authors


  •   Wang, Ying (external author)
  •   Wang, Caiyun
  •   Wang, Yijing (external author)
  •   Liu, Hua K.
  •   Huang, Zhenguo (external author)

Publication Date


  • 2016

Citation


  • Wang, Y., Wang, C., Wang, Y., Liu, H. & Huang, Z. (2016). Superior sodium-ion storage performance of Co3O4@nitrogen-doped carbon: derived from a metal–organic framework. Journal of Materials Chemistry A, 4 (15), 5428-5435.

Scopus Eid


  • 2-s2.0-84967221226

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3031&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2029

Number Of Pages


  • 7

Start Page


  • 5428

End Page


  • 5435

Volume


  • 4

Issue


  • 15

Abstract


  • Nitrogen-doped carbon coated Co

    3

    O

    4

    nanoparticles (Co

    3

    O

    4

    @NC) with high Na-ion storage capacity and

    unprecedented long-life cycling stability are reported in this paper. The Co

    3

    O

    4

    @NC was derived from

    a metal

    organic framework ZIF-67, where the Co ions and organic linkers were, respectively, converted

    to Co

    3

    O

    4

    nanoparticle cores and nitrogen-doped carbon shells through a controlled two-step annealing

    process. The Co

    3

    O

    4

    @NC shows a porous nature with a surface area of 101 m

    2

    g

    1

    . When applied as an

    anode for sodium ion batteries (SIBs), Co

    3

    O

    4

    @NC delivers a high reversible capacity of 506, 317, and 263

    mA h g

    1

    at 100, 400, and 1000 mA g

    1

    , respectively. A capacity degradation of 0.03% per cycle over

    1100 cycles was achieved at a high current density of 1000 mA g

    1

    . The outstanding Na-ion storage

    performance can be ascribed to the nitrogen-doped carbon coating (NC), which facilitates the capacitive

    reaction, minimizes the volume changes of Co

    3

    O

    4

    , and also enhances the electronic conductivity. This

    work sheds light on how to develop high-performance metal oxide@NC nanocomposites for SIBs

Authors


  •   Wang, Ying (external author)
  •   Wang, Caiyun
  •   Wang, Yijing (external author)
  •   Liu, Hua K.
  •   Huang, Zhenguo (external author)

Publication Date


  • 2016

Citation


  • Wang, Y., Wang, C., Wang, Y., Liu, H. & Huang, Z. (2016). Superior sodium-ion storage performance of Co3O4@nitrogen-doped carbon: derived from a metal–organic framework. Journal of Materials Chemistry A, 4 (15), 5428-5435.

Scopus Eid


  • 2-s2.0-84967221226

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3031&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2029

Number Of Pages


  • 7

Start Page


  • 5428

End Page


  • 5435

Volume


  • 4

Issue


  • 15