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One-pot synthesis of FCNTs-wired TiO2 nanocomposites as anode materials for high-rate lithium ion batteries

Journal Article


Abstract


  • Anatase FCNTs (functionalized carbon nanotubes)-wired TiO2 nanocomposites have been successfully synthesized via a facile one-pot hydrothermal method. The prepared composites are composed of uniform nanoparticles of TiO2 intimately interconnected by FCNTs networks. FCNTs-wired TiO2 nanocomposites display improved electrochemical performance than bare TiO2, especially for high rate capability. FCNTs-wired TiO2 nanocomposite with 2 wt% functionalized carbon nanotubes shows optimized electrochemical performance. It exhibits high initial discharge capacity (109.2 mAh g-1) with almost no capacity fading after 100 cycles at a super-high current density of 5040 mA g-1 (30 C). The tightly bound structure with FCNTs could enhance electronic conductivity, decrease the charge transfer resistance, and increase the lithium diffusion coefficient, thus improving rate capability of TiO2 remarkably. All these results demonstrate that FCNTs-wired TiO2 nanocomposites with super rate capability and excellent cycling performance have a promising application as anode materials for lithium ion batteries. �� 2014 Elsevier Ltd.

UOW Authors


  •   Guo, Haipeng (external author)

Publication Date


  • 2014

Citation


  • Yan, Z., Liu, L., Guo, H., Tan, J., Shu, H., Yang, X., . . . Wang, X. (2014). One-pot synthesis of FCNTs-wired TiO2 nanocomposites as anode materials for high-rate lithium ion batteries. Electrochimica Acta, 123, 551-559. doi:10.1016/j.electacta.2014.01.059

Scopus Eid


  • 2-s2.0-84894206137

Start Page


  • 551

End Page


  • 559

Volume


  • 123

Issue


Place Of Publication


Abstract


  • Anatase FCNTs (functionalized carbon nanotubes)-wired TiO2 nanocomposites have been successfully synthesized via a facile one-pot hydrothermal method. The prepared composites are composed of uniform nanoparticles of TiO2 intimately interconnected by FCNTs networks. FCNTs-wired TiO2 nanocomposites display improved electrochemical performance than bare TiO2, especially for high rate capability. FCNTs-wired TiO2 nanocomposite with 2 wt% functionalized carbon nanotubes shows optimized electrochemical performance. It exhibits high initial discharge capacity (109.2 mAh g-1) with almost no capacity fading after 100 cycles at a super-high current density of 5040 mA g-1 (30 C). The tightly bound structure with FCNTs could enhance electronic conductivity, decrease the charge transfer resistance, and increase the lithium diffusion coefficient, thus improving rate capability of TiO2 remarkably. All these results demonstrate that FCNTs-wired TiO2 nanocomposites with super rate capability and excellent cycling performance have a promising application as anode materials for lithium ion batteries. �� 2014 Elsevier Ltd.

UOW Authors


  •   Guo, Haipeng (external author)

Publication Date


  • 2014

Citation


  • Yan, Z., Liu, L., Guo, H., Tan, J., Shu, H., Yang, X., . . . Wang, X. (2014). One-pot synthesis of FCNTs-wired TiO2 nanocomposites as anode materials for high-rate lithium ion batteries. Electrochimica Acta, 123, 551-559. doi:10.1016/j.electacta.2014.01.059

Scopus Eid


  • 2-s2.0-84894206137

Start Page


  • 551

End Page


  • 559

Volume


  • 123

Issue


Place Of Publication