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Wintersweet-flower-like CoFe 2O 4/MWCNTs hybrid material for high-capacity reversible lithium storage

Journal Article


Abstract


  • CoFe 2O 4/multiwalled carbon nanotubes (MWCNTs) hybrid materials were synthesized by a hydrothermal method. Field emission scanning electron microscopy and transmission electron microscopy analysis confirmed the morphology of the as-prepared hybrid material resembling wintersweet flower "buds on branches", in which CoFe 2O 4 nanoclusters, consisting of nanocrystals with a size of 5-10 nm, are anchored along carbon nanotubes. When applied as an anode material in lithium ion batteries, the CoFe 2O 4/MWCNTs hybrid material exhibited a high performance for reversible lithium storage. In particular, the hybrid anode material delivered reversible lithium storage capacities of 809, 765, 539, and 359 mAhg -1 at current densities of 180, 450, 900, and 1800 mAg -1, respectively. The superior performance of CoFe 2O 4/MWCNTs hybrid materials could be ascribed to the synergistic pinning effect of the wintersweet-flower-like nanoarchitecture. This strategy could also be applied to synthesize other metal oxide/CNTs hybrid materials as high-capacity anode materials for lithium ion batteries. © 2012 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

UOW Authors


  •   Wang, Guoxiu (external author)

Publication Date


  • 2012

Citation


  • Wang, Y., Park, J., Sun, B., Ahn, H., & Wang, G. (2012). Wintersweet-flower-like CoFe 2O 4/MWCNTs hybrid material for high-capacity reversible lithium storage. Chemistry - An Asian Journal, 7(8), 1940-1946. doi:10.1002/asia.201200257

Scopus Eid


  • 2-s2.0-84863856226

Start Page


  • 1940

End Page


  • 1946

Volume


  • 7

Issue


  • 8

Abstract


  • CoFe 2O 4/multiwalled carbon nanotubes (MWCNTs) hybrid materials were synthesized by a hydrothermal method. Field emission scanning electron microscopy and transmission electron microscopy analysis confirmed the morphology of the as-prepared hybrid material resembling wintersweet flower "buds on branches", in which CoFe 2O 4 nanoclusters, consisting of nanocrystals with a size of 5-10 nm, are anchored along carbon nanotubes. When applied as an anode material in lithium ion batteries, the CoFe 2O 4/MWCNTs hybrid material exhibited a high performance for reversible lithium storage. In particular, the hybrid anode material delivered reversible lithium storage capacities of 809, 765, 539, and 359 mAhg -1 at current densities of 180, 450, 900, and 1800 mAg -1, respectively. The superior performance of CoFe 2O 4/MWCNTs hybrid materials could be ascribed to the synergistic pinning effect of the wintersweet-flower-like nanoarchitecture. This strategy could also be applied to synthesize other metal oxide/CNTs hybrid materials as high-capacity anode materials for lithium ion batteries. © 2012 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

UOW Authors


  •   Wang, Guoxiu (external author)

Publication Date


  • 2012

Citation


  • Wang, Y., Park, J., Sun, B., Ahn, H., & Wang, G. (2012). Wintersweet-flower-like CoFe 2O 4/MWCNTs hybrid material for high-capacity reversible lithium storage. Chemistry - An Asian Journal, 7(8), 1940-1946. doi:10.1002/asia.201200257

Scopus Eid


  • 2-s2.0-84863856226

Start Page


  • 1940

End Page


  • 1946

Volume


  • 7

Issue


  • 8