期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 2, 期 37, 页码 15473-15479出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ta02890b
关键词
-
资金
- NSFC [51202212, 21107117]
- Natural Science Foundation of Hebei province [E2014203033]
- Beijing Natural Science Foundation [2132057]
To improve the electrochemical performance of TiO2 nanotube as anode materials in Li-ion batteries, N-doped TiO2 nanotube/N-doped graphene composites were prepared via hydrothermal synthesis followed by heat treatment in the presence of urea. The N-doped TiO2 nanotubes/N-doped graphene composites were characterized by X-ray powder diffraction, transition electron microscopy, scanning electron microscopy and X-ray photoelectron spectroscopy. The electrochemical experiments demonstrated that the as-prepared sample exhibit superior discharge capacity (up to 369 mA h g(-1) at 0.1 A g(-1)) as well as excellent rate ability (90 mA h g(-1) even at 5 A g(-1) at 180th cycle) as anode materials in lithium-ion batteries.
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