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Synthesis of hierarchical worm-like SnO2@C aggregates and their enhanced lithium storage properties

Publication ,  Journal Article
Wu, ZG; Li, JT; Zhong, YJ; Liu, J; Guo, XD; Huang, L; Zhong, BH; Sun, SG
Published in: Journal of Alloys and Compounds
September 16, 2014

The present paper reports a synthetic strategy of hierarchical worm-like SnO2@C aggregates with enhanced electrochemical performances. Specifically, a glucose-assisted hydrothermal treatment of the intermediate Co-Sn alloy nanoparticles, which were formed by carbothermal reduction of mixed commercial SnO2 and Co3O4 nanoparticles. The SnO2@C sample exhibits enhanced cycling performance in comparison with raw commercial SnO2 nanoparticles and intermediate Co-Sn alloy nanoparticles when used as anode of lithium ion battery. A stable capacity of 533.6 mA h g-1 at 100 mA g-1 and 477.0 mA h g-1 at 400 mA g-1 remains after 60 cycles. When the current density increases to 1600 mA g-1, the SnO2@C sample still deliver a high capacity of 384.2 mA h g-1. The superior electrochemical performances could be attributed to the synergistic effect of unique worm-like aggregates structure and carbon surface-layer, which facilitate the electron transportation and buffer the large volume change.

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Published In

Journal of Alloys and Compounds

DOI

ISSN

0925-8388

Publication Date

September 16, 2014

Volume

620

Start / End Page

407 / 412

Related Subject Headings

  • Materials
  • 0914 Resources Engineering and Extractive Metallurgy
  • 0912 Materials Engineering
  • 0204 Condensed Matter Physics
 

Citation

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Wu, Z. G., Li, J. T., Zhong, Y. J., Liu, J., Guo, X. D., Huang, L., … Sun, S. G. (2014). Synthesis of hierarchical worm-like SnO2@C aggregates and their enhanced lithium storage properties. Journal of Alloys and Compounds, 620, 407–412. https://doi.org/10.1016/j.jallcom.2014.08.176
Wu, Z. G., J. T. Li, Y. J. Zhong, J. Liu, X. D. Guo, L. Huang, B. H. Zhong, and S. G. Sun. “Synthesis of hierarchical worm-like SnO2@C aggregates and their enhanced lithium storage properties.” Journal of Alloys and Compounds 620 (September 16, 2014): 407–12. https://doi.org/10.1016/j.jallcom.2014.08.176.
Wu ZG, Li JT, Zhong YJ, Liu J, Guo XD, Huang L, et al. Synthesis of hierarchical worm-like SnO2@C aggregates and their enhanced lithium storage properties. Journal of Alloys and Compounds. 2014 Sep 16;620:407–12.
Wu, Z. G., et al. “Synthesis of hierarchical worm-like SnO2@C aggregates and their enhanced lithium storage properties.” Journal of Alloys and Compounds, vol. 620, Sept. 2014, pp. 407–12. Scopus, doi:10.1016/j.jallcom.2014.08.176.
Wu ZG, Li JT, Zhong YJ, Liu J, Guo XD, Huang L, Zhong BH, Sun SG. Synthesis of hierarchical worm-like SnO2@C aggregates and their enhanced lithium storage properties. Journal of Alloys and Compounds. 2014 Sep 16;620:407–412.
Journal cover image

Published In

Journal of Alloys and Compounds

DOI

ISSN

0925-8388

Publication Date

September 16, 2014

Volume

620

Start / End Page

407 / 412

Related Subject Headings

  • Materials
  • 0914 Resources Engineering and Extractive Metallurgy
  • 0912 Materials Engineering
  • 0204 Condensed Matter Physics