期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 3, 期 31, 页码 16057-16063出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta03186a
关键词
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资金
- National Natural Science Foundation of China [51303212, 51303202, 21302224, 51372277]
- National Natural Science Foundation of Shandong Province [ZR2013BQ028, ZR2013EMQ013]
- Fundamental Research Fund for the Central Universities [14CX02196A, 15CX08005A, 15CX05010A]
- Open Fund of Beijing National Laboratory for Molecular Sciences [2013019]
Through the introduction of well-distributed tin oxide nanocrystals on the surface of pre-prepared TiO2 nanotubes and carbon coating, novel TiO2/SnO2-C double-shell nanotubes have been synthesized. As an anode material of Li-ion batteries (LIBs), DSNTs exhibit excellent long-term cycling stability (256.0 mA h g(-1) at 1 A g(-1) after 710 cycles) and satisfactory rate capability, which are ascribed to the synergetic effects of a unique combination of material properties in the well-designed conductive matrix: high volume stable titanium dioxide to form a one-dimensional (1D) core section to maintain the structure, large theoretical capacity tin oxide as a functional layer to increase capacity and highly conductive carbon as a buffer layer to accelerate charging rate.
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