Synthesis and characterization of tin dioxide/multiwall carbon nanotube composites

Authors

Chuanqi Feng, University of WollongongFollow
Li Li, Hubei University, Wuhan, China
Zaiping Guo, University of WollongongFollow
Hua Li, Hubei University, China

RIS ID

33347

Publication Details

Li, H., Feng, C., Li, L. and Guo, Z. (2010). Synthesis and characterization of tin dioxide/multiwall carbon nanotube composites. Journal of Alloys and Compounds, 504 (2), 457-461.

Abstract

Nanocomposites composed of tin dioxide/multiwall carbon nanotubes (MWCNTs) were synthesized by a chemical precipitation method. The content of SnO₂ in the nanocomposites was adjusted by changing the mass ratio of SnCl₄·4H₂O to MWCNTs. The crystalline structure and morphology of the as-prepared samples were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The electrochemical properties of the composites were investigated with a battery testing system. The results show that the electrochemical performance of a composite is strongly dependent on the content of SnO₂ in the composites. A nanocomposite containing 50 wt.% of SnO₂ gave the best performance, exhibiting relatively higher reversible capacity (523 mAh/g) and excellent cycling ability. The possible reasons why the composite has such an outstanding electrochemical performance are discussed also.