Encapsulated Fe3O4 into tubular mesoporous carbon as a superior performance anode material for lithium-ion batteries

被引:29
作者
Cao, Zhijie [1 ]
Ma, Xiaobo [1 ]
机构
[1] Ningxia Univ, Sch Phys & Elect Elect Engn, Adv Energy Storage Mat & Devices Lab, Yinchuan 750021, Peoples R China
基金
中国国家自然科学基金;
关键词
Lithium-ion batteries; Composite; Fe3O4; Mesoporous carbon; Capacity; ONE-POT SYNTHESIS; HIGH-CAPACITY; ELECTROCHEMICAL PERFORMANCE; HOLLOW SPHERES; STORAGE; NANOPARTICLES; ELECTRODES; NANOSHEETS; STABILITY; NANOSTRUCTURES;
D O I
10.1016/j.jallcom.2019.152542
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A well-defined composite of Fe3O4 encapsulated into tubular mesoporous carbon is prepared as an anode material for lithium-ion batteries. It turns out that up to 67.7 wt% of Fe3O4 nanoparticles are homogeneously embedded into the mesoporous carbon nanotubes. The Fe3O4@tubular mesoporous carbon composites provide effective accommodation for the volume change, fast transport paths for electrons and ions, as well as good contact for nanoparticles, thus exhibiting superior electrochemical performances. The reversible capacity maintains a high specific capacity of similar to 800 mAh g(-1) after 1000 cycles at 2000 mA g(-1), and the electrode still keeps a reasonable level of similar to 400 mAh g(-1) even going through 16000 cycles at 10000 mA g(-1), which makes Fe3O4@tubular mesoporous carbon composite a valuable anode material for lithium-ion batteries. (C) 2019 Elsevier B.V. All rights reserved.
引用
收藏
页数:7
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