Synthesis of tungsten disulfide (WS2) nanoflakes for lithium ion battery application

被引：172
作者：
Feng, Chuanqi
Huang, Lunfeng
Guo, Zaiping
Liu, Huakun
机构：
[1] Univ Wollongong, Inst Supercond & Elect Mat, Wollongong, NSW 2522, Australia
[2] Univ Wollongong, ARC, Ctr Excellence Electromat Sci, Wollongong, NSW 2522, Australia
[3] Hubei Univ, Dept Chem & Chem Engn, Wuhan 430062, Peoples R China
来源：
ELECTROCHEMISTRY COMMUNICATIONS | 2007年 / 9卷 / 01期
基金：
澳大利亚研究理事会;
关键词：
D O I：
10.1016/j.elecom.2006.08.048
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A novel method (a rheological phase reaction) was used to synthesize WS2 nanoflakes by adding oxalic acid as a reducing reagent. High resolution electron microscopy observations revealed that the as-prepared WS2 nanoflakes had started to curve and that WS2 nanotubes were partly formed. The lithium intercalation/deintercalation behavior of as-prepared WS2 electrode was also investigated. It was found that the WS2 nanoflake electrode exhibited higher specific capacity with very good cycling stability compared to WS2 nanotube or nanoparticle electrodes. The reasons for the improved electrochemical performance of the nanoflake electrodes are also discussed. (c) 2006 Elsevier B.V. All rights reserved.
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收藏
页码：119 / 122
页数：4
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