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Journal of Nanomaterials
Volume 2015, Article ID 965061, 10 pages
Research Article

Synthesis and Electrochemical Performance of Graphene Wrapped SnxTi1−xO2 Nanoparticles as an Anode Material for Li-Ion Batteries

Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Zhejiang 315201, China

Received 4 December 2014; Revised 9 January 2015; Accepted 9 January 2015

Academic Editor: Jiamin Wu

Copyright © 2015 Xing Xin et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Ever-growing development of Li-ion battery has urged the exploitation of new materials as electrodes. Here, solid-solution nanomaterials were prepared by aqueous solution method. The morphology, structures, and electrochemical performance of nanoparticles were systematically investigated. The results indicate that Ti atom can replace the Sn atom to enter the lattice of SnO2 to form substitutional solid-solution compounds. The capacity of the solid solution decreases while the stability is improved with the increasing of the Ti content. Solid solution with x of 0.7 exhibits the optimal electrochemical performance. The Sn0.7Ti0.3O2 was further modified by highly conductive graphene to enhance its relatively low electrical conductivity. The Sn0.7Ti0.3O2/graphene composite exhibits much improved rate performance, indicating that the solid solution can be used as a potential anode material for Li-ion batteries.