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Multiwalled carbon nanotubes anchored with SnS2 nanosheets as high-performance anode materials of lithium-ion
Chuanxin Zhai1, Ning Du, Hui Zhang
1State Key Lab of Silicon Materials and Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China.
Abstract:
A nanocomposite of multiwalled carbon nanotubes (MWCNTs) anchored with SnS(2) nanosheets (NS) (SnS(2) NS@MWCNTs coaxial nanocables) has been synthesized through a simple solution-based method at room temperature. The synthetic mechanism of these intriguing nanocomposites is proposed as electrostatic attraction between tin ions and MWCNTs, followed by the nucleation and two-dimensional growth of SnS(2). The as-synthesized SnS(2) NS@MWCNTs coaxial nanocables have been applied as anode materials for lithium-ion batteries, which show better lithium storage performance compared to pure SnS(2) nanosheets and MWCNTs. The combination of MWCNTs that can hinder the agglomeration and enhance electronic conductivity of the active materials might be responsible for the enhanced cyclic performance.
