Beaded structured CNTs-Fe3O4@C with low Fe3O4 content as anode materials with extra enhanced performances in lithium ion batteries
Beaded structured CNTs-Fe3O4@C with low Fe3O4 content as anode materials with extra enhanced performances in lithium ion batteries
复制标题
低 Fe3O4 含量的珠状结构 CNTs-Fe3O4@C 作为负极材料,在锂离子电池中具有额外增强的性能
DOI:
10.1039/c5ra01262g
复制
发表时间:
2015-03
期刊:
影响因子:
3.9
通讯作者:
Mijowska, Ewa
中科院分区:
文献类型:
--
作者:
Kierzek, Krzysztof;Liu, Wenbin;Tang, Tao;Mijowska, Ewa
The present paper reports a facile method to synthesize CNT-Fe2O3 and CNTs-Fe3O4@C beaded structures by deposition of Fe2O3 and carbon layers on CNTs, which integrate both electronic conductivity and buffering matrix design strategies. The CNT-Fe2O3 and CNTs-Fe3O4@C were tested as anode materials for lithium-ion batteries, CNT-Fe2O3 showed excellent cycling performance, the reversible capacity retention after 80 cycles is stable at 410 mA h g−1. However, CNTs-Fe3O4@C exhibited improved reversible capacity and better cycling performance when compared to CNT and CNTs-Fe2O3. The highly improved reversible capacities are attributed to the combination of (a) the network structured CNTs, which improve the matrix electrical conductivity, (b) the mesopores created by the carbon coating on Fe3O4 nanoparticles and CNTs, which increases lithium-ion mobility and storage, and (c) the Fe3O4 nanoparticles attached to the CNTs facilitate the transport of electrons and shorten the distance for Li+ diffusion. This study provides a cost-effective, highly efficient method to fabricate nanomaterials which combines carbon nanotubes with iron oxide nanoparticles for the development of lithium ion batteries with high-performance.
登录
查看更多内容
影响因子:
29.4
作者:
Guo, Yu-Guo;Hu, Jin-Song;Wan, Li-Jun
通讯作者:
Wan, Li-Jun
影响因子:
9.5
作者:
Ji, Liwen;Toprakci, Ozan;Zhang, Xiangwu
通讯作者:
Zhang, Xiangwu
影响因子:
9.2
作者:
T. Renouard;L. Gherghel;M. Wachtler;F. Bonino;B. Scrosati;R. Nuffer;C. Mathis;K. Müllen
通讯作者:
T. Renouard;L. Gherghel;M. Wachtler;F. Bonino;B. Scrosati;R. Nuffer;C. Mathis;K. Müllen
影响因子:
19
作者:
Zhang, Wei-Ming;Wu, Xing-Long;Wan, Li-Jun
通讯作者:
Wan, Li-Jun
影响因子:
29.4
作者:
Bonino, F;Brutti, S;Müllen, K
通讯作者:
Müllen, K