TiO2/carbon hollow spheres as anode materials for advanced sodium ion batteries

被引：80
|
作者：
Yang, Fuhua [1 ]
Zhang, Zhian [1 ]
Han, Yu [1 ]
Du, Ke [1 ]
Lai, Yanqing [1 ]
Li, Jie [1 ]
机构：
[1] Cent S Univ, Sch Met & Environm, Changsha 410083, Hunan, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2015年 / 178卷
关键词：
TiO2/carbon hollow spheres; anode materials; sodium-ion batteries; HIGH-PERFORMANCE ANODE; TIO2; NANOPARTICLES; ANATASE TIO2; CARBON; STORAGE; COMPOSITES; NANOFIBERS; CHALLENGES; NANOTUBES;
D O I：
10.1016/j.electacta.2015.08.051
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
TiO2/carbon hollow spheres (TiO2/C-HSs) have been successfully prepared using a template method. During the synthesis procedures, SiO2 spheres were used as template, titanium tert-butoxide and dopamine were used as TiO2 and carbon precursor, respectively. The TiO2/C-HSs were characterized by Xray diffraction (XRD), nitrogen adsorption-desorption measurements, scanning electron microscopy (SEM), transmission electron microscopy (TEM), thermogravimetry (TGA) measurements, and raman spectra analysis. When utilized as anode materials for sodium-ion batteries, the TiO2/C-HSs anode can deliver a high specific capacity and remarkable rate performance. The excellent electrochemical performance of TiO2/C-HSs can be ascribed to the hollow sphere structure, the existence of carbon and the large surface area and porous structure. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：871 / 876
页数：6
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