N-doped TiO2 nanotubes/N-doped graphene nanosheets composites as high performance anode materials in lithium-ion battery
N-doped TiO2 nanotubes/N-doped graphene nanosheets composites as high performance anode materials in lithium-ion battery
复制标题
N掺杂TiO2纳米管/N掺杂石墨烯纳米片复合材料作为高性能锂离子电池负极材料
DOI：
10.1039/c4ta02890b
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发表时间：
2014-01-01
影响因子：
11.9
通讯作者：
Lv, Xiao-Jun
中科院分区：
文献类型：
--
作者：
Li, Yueming;Wang, Zhiguang;Lv, Xiao-Jun
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.
