材料科学
介孔材料
阳极
纳米纤维
碳纳米纤维
静电纺丝
锂(药物)
微晶
化学工程
碳纤维
纳米技术
兴奋剂
复合材料
电极
碳纳米管
复合数
化学
光电子学
有机化学
聚合物
催化作用
物理化学
冶金
内分泌学
工程类
医学
作者
Myung-Hyun Ryu,Kyu‐Nam Jung,Kyoung-Hee Shin,Kyoo‐Seung Han,Sukeun Yoon
摘要
N-doped mesoporous carbon decorated TiO2 nanofibers were synthesized for the first time by a facile electrospinning process combined with subsequent heat treatment and investigated as an anode material for lithium-ion battery applications. The N-doped mesoporous carbon decorated TiO2 nanofibers had continuous one-dimensional (1-D) geometry with a smooth surface and an average thickness of ∼250 nm. The nanofibers comprised both interconnected polycrystalline TiO2 and numerous mesopores in N-doped carbon. After 100 cycles at current density of 33 mA/g, the N-doped mesoporous carbon decorated TiO2 nanofibers still exhibited a high capacity of 264 mAh/g. This superior electrochemical performance is attributed to small TiO2 crystallites, N-doped mesoporous carbon, favorable 1-D nanostructures, and smooth accommodation of the strain occurring during the charge–discharge process.
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