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Hollow hematite nanosphere/carbon nanotube composite: mass production and its high-rate lithium storage properties
Faculty of Engineering - Papers (Archive)
  • Shulei Chou, University of Wollongong
  • Jiazhao Wang, University of Wollongong
  • Zhixin Chen, University of Wollongong
  • Hua-Kun Liu, University of Wollongong
  • S. X. Dou, University of Wollongong
RIS ID
37095
Publication Date
1-1-2011
Publication Details

Chou, S., Wang, J., Chen, Z., Liu, H. K. & Dou, S. Xue. (2011). Hollow hematite nanosphere/carbon nanotube composite: mass production and its high-rate lithium storage properties. Nanotechnology, 22 (26), 1-5.

Abstract

Spray pyrolysis was used to produce hollow hematite (α-Fe(2)O(3)) nanosphere (HHNS)/carbon nanotube (CNT) composite on a large scale. The method offers simplicity, high productivity, versatility, low cost, and suitability for industry. The structure is composed of hollow nanospheres in a network of CNTs. The possible formation mechanism of hollow α-Fe(2)O(3) nanospheres is due to the rapid evaporation of water and the super-hydrophobicity of the CNT surface. The electrochemical tests show that the HHNS/CNT composite is a promising lithium storage material in terms of high capacity (∼700 mAh g(-1)), good high-rate capability, and good cycle life (up to 150 cycles). The materials improve both lithium ion and electron transport, which are limiting factors on the high-rate capability of lithium-ion batteries. The production method can be easily adapted to produce a wide range of hollow metal oxide nanosphere/CNT composites.

Disciplines
Citation Information
Shulei Chou, Jiazhao Wang, Zhixin Chen, Hua-Kun Liu, et al.. "Hollow hematite nanosphere/carbon nanotube composite: mass production and its high-rate lithium storage properties" (2011) p. 1 - 5
Available at: http://works.bepress.com/shulei/1/