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Magnetite/carbon core-shell nanorods as anode materials for lithium-ion batteries

Journal Article


Abstract


  • Carbon coated magnetite (Fe3O4) core-shell nanorods were synthesized by a hydrothermal method using Fe2O3 nanorods as the precursor. Transmission electron spectroscopy (TEM) and high resolution TEM (HRTEM) analysis indicated that a carbon layer was coated on the surfaces of the individual Fe3O4 nanorods. The electrochemical properties of Fe3O4/carbon nanorods as anodes in lithium-ion cells were evaluated by cyclic voltammetry, ac impedance spectroscopy, and galvanostatic charge/discharge techniques. The as-prepared Fe3O4/C core-shell nanorods show an initial lithium storage capacity of 1120 mAh/g and a reversible capacity of 394 mAh/g after 100 cycles, demonstrating better performance than that of the commercial graphite anode material.

Publication Date


  • 2008

Citation


  • Liu, H., Wang, G., Wang, J. & Wexler, D. (2008). Magnetite/carbon core-shell nanorods as anode materials for lithium-ion batteries. Electrochemistry Communications, 10 (12), 1879-1882.

Scopus Eid


  • 2-s2.0-56249143148

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/3333

Has Global Citation Frequency


Number Of Pages


  • 3

Start Page


  • 1879

End Page


  • 1882

Volume


  • 10

Issue


  • 12

Abstract


  • Carbon coated magnetite (Fe3O4) core-shell nanorods were synthesized by a hydrothermal method using Fe2O3 nanorods as the precursor. Transmission electron spectroscopy (TEM) and high resolution TEM (HRTEM) analysis indicated that a carbon layer was coated on the surfaces of the individual Fe3O4 nanorods. The electrochemical properties of Fe3O4/carbon nanorods as anodes in lithium-ion cells were evaluated by cyclic voltammetry, ac impedance spectroscopy, and galvanostatic charge/discharge techniques. The as-prepared Fe3O4/C core-shell nanorods show an initial lithium storage capacity of 1120 mAh/g and a reversible capacity of 394 mAh/g after 100 cycles, demonstrating better performance than that of the commercial graphite anode material.

Publication Date


  • 2008

Citation


  • Liu, H., Wang, G., Wang, J. & Wexler, D. (2008). Magnetite/carbon core-shell nanorods as anode materials for lithium-ion batteries. Electrochemistry Communications, 10 (12), 1879-1882.

Scopus Eid


  • 2-s2.0-56249143148

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/3333

Has Global Citation Frequency


Number Of Pages


  • 3

Start Page


  • 1879

End Page


  • 1882

Volume


  • 10

Issue


  • 12