Hydrothermal Synthesis and Electrochemical Lithium Storage Performance of Flower-like NH4V4O10 Micro/Nano Structures

Chem. J. Chinese Universities ›› 2011, Vol. 32 ›› Issue (3): 618.

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Hydrothermal Synthesis and Electrochemical Lithium Storage Performance of Flower-like NH4V4O10 Micro/Nano Structures

REN Xiao-Ning, LIANG Jing, TAO Zhan-Liang, CHEN Jun*

Institute of New Energy Material Chemistry, Key Laboratory of Advanced Energy Materials Chemistry, Ministry of Education, Nankai University, Tianjin 300071, China

Received:2010-10-15 Revised:2010-11-29 Online:2011-03-10 Published:2011-02-23
Contact: CHEN Jun E-mail:chenabc@nankai.edu.cn
Supported by:
国家自然科学基金(批准号: 21076108)、教育部创新团队基金(批准号: IRT0927)和天津市应用基础及前沿技术研究项目(批准号: 08JCZDJC21300, 10JCYBJC08400)资助.

Abstract

Abstract: Flower-like NH4V4O10 micro/nano structures have been prepared via a template-free hydrothermal route. The structure, morphology and composition of the as-synthesized products are characterized by X-ray powder diffraction (XRD), scanning electron microscope (SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) measurements. The diameter and length of the “petal” of the as-synthesized flower-like NH4V4O10 are about 100 nm and several microns, respectively. Effects of hydrothermal reaction parameters are also investigated，such as the reaction temperature and dwell time on the structure and morphology of the products. The electrochemical lithium storage of the as-synthesized products is also investigated. The experimental results show that the flower-like NH4V4O10 micro/nano structures exhibit high discharge specific capacity of 307 mAh?g-1, indicating their promising application as cathode materials for lithium-ion batteries.

Key words: Hydrothermal synthesis, NH4V4O10, Electrochemistry

CLC Number:

O611.4

TrendMD:

REN Xiao-Ning, LIANG Jing, TAO Zhan-Liang, CHEN Jun*. Hydrothermal Synthesis and Electrochemical Lithium Storage Performance of Flower-like NH4V4O10 Micro/Nano Structures[J]. Chem. J. Chinese Universities, 2011, 32(3): 618.

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Hydrothermal Synthesis and Electrochemical Lithium Storage Performance of Flower-like NH4V4O10 Micro/Nano Structures

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