期刊
NEW JOURNAL OF CHEMISTRY
卷 38, 期 8, 页码 3722-3728出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4nj00263f
关键词
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资金
- Program for New Century Excellent Talents in University of MOE, China [NCET-11-1027]
- Taishan Scholar Professorship [TSHW20091007]
- Key Laboratory of Advanced Energy Materials Chemistry of Nankai University [KLAEMC-OP201201]
- Shandong Provincial Science Foundation for Disguised Youth Scholars [JQ201214]
- [BS2012CL003]
Homogeneous TiO2@C composite nanospheres are synthesized by a direct pyrolysis strategy using Ti-containing organic inorganic polymers as precursors. The TiO2@C composite nanospheres possess uniform distribution of tiny TiO2 nanoparticles confined in the carbon matrix with a homogeneous structure. The carbon phase can not only improve the conductivity but also prevent the aggregation of TiO2 nanopartictes. When evaluated as anodes for lithium-ion batteries, the TiO2@C nanocomposites demonstrate a high reversible specific capacity of 207 mA h g(-1) at 0.5 C (1 C = 250 mA g(-1)) after 50 cycles and a stable cycling performance in comparison to pure TiO2 nanospheres. This work offers a new pathway for realization of carbon-based composite materials for use as high performance anodes in LIBs.
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