Synthesis and electrochemical properties of nanocrystalline V2O5 flake via a citric acid-assistant sol-gel method

被引:21
作者
Gao, LS
Wang, X
Fei, LF
Ji, MR
Zheng, HG [1 ]
Zhang, HC
Shen, T
Yang, K
机构
[1] Univ Sci & Technol China, Dept Chem, Hefei 230026, Peoples R China
[2] Univ Sci & Technol China, Struct Res Lab, Hefei 230026, Peoples R China
[3] Highstar Chem Power Source Co Ltd, Qidong 226200, Peoples R China
关键词
nanostructure; inorganic compounds; oxides;
D O I
10.1016/j.jcrysgro.2005.04.042
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
Nanocrystalline V2O5 flake was simply synthesized via a citric acid assisted sol-gel method. The citric acid assistant improved the morphology and electrochemical performance Of V2O5. TGA-DTA, XRD, SEM, TEM, CV and charge-discharge tests were used to characterize the as-prepared V2O5 powder. SEM and TEM images showed that the product had a stacked-up-flakes morphology. A high initial discharge specific capacity of 798 mAh/g was obtained in the charge-discharge cycle. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:463 / 467
页数:5
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