Hierarchically porous nanoflowers from TiO2-B nanosheets with ultrahigh surface area for advanced lithium-ion batteries

被引：25
作者：
Huang, Hui [1 ]
Yu, Zhaoyang [1 ]
Zhu, Wenjun [1 ]
Gan, Yongping [1 ]
Xia, Yang [1 ]
Tao, Xinyong [1 ]
Zhang, Wenkui [1 ]
机构：
[1] Zhejiang Univ Technol, Coll Chem Engn & Mat Sci, Hangzhou 310014, Zhejiang, Peoples R China
来源：
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2014年 / 75卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Microporous materials; Nanostructures; Oxides; Electrochemical properties; NEGATIVE ELECTRODE MATERIAL; PHOTOCATALYTIC ACTIVITY; RATE PERFORMANCE; HYBRID NANOSTRUCTURES; RATE CAPABILITY; NANOTUBES; STORAGE; PHASE; MICROSPHERES; COMPOSITES;
D O I：
10.1016/j.jpcs.2013.12.020
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this work, hierarchically porous TiO2-B nanoflowers have been successfully synthesized via a facile solvothermal method followed by calcination treatment. The TiO2-B nanoflowers are constructed by thin nanosheets, presenting ultrahigh specific surface area, up to 214.6 m(2) g(-1). As anode materials for Li-ion batteries, the TiO2-B sample shows high reversible capacity, excellent cycling performance and superior rate capability. The specific capacity of TiO2-B could remain over 285 mA h g(-1) at 1 C and 181 mA h g(-1) at 10 C rate after 100 cycles. We believe that the pseudocapacitive mechanism, ultrahigh surface area and scrupulous nanoarchitecture of the TiO2-B are responsible for the enhancement of electrochemical properties. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：619 / 623
页数：5
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