Controllable synthesis and electrochemical performance of VO2(B) nanobelt arrays as cathode materials for sodium-ion batteries

被引：0

作者：

Qin M.-L. ^{[1
]}

Liu W.-M. ^{[1
]}

Zhang Z.-C. ^{[1
]}

Xu X.-X. ^{[1
]}

机构：

[1] School of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan

来源：

Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals | 2018年 / 28卷 / 06期

关键词：

Cathode material; Hydrothermal method; Nanobelt array; Sodium-ion battery; VO[!sub]2[!/sub](B);

D O I：

10.19476/j.ysxb.1004.0609.2018.06.09

中图分类号：

学科分类号：

摘要：

VO2(B) nanobelt arrays were synthesized by hydrothermal method with V2O5 as vanadium source and ethylene glycol as structure-directing agent and reductant, without using template. The crystal structure and morphology of synthesized VO2(B) were characterized by X-ray diffractometry (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The influences of ethylene glycol content and reaction time on structure and morphology of synthesized product were studied. As cathode materials for sodium-ion batteries, the effects of reaction time and charge-discharge voltage range on the electrochemical performance of synthesized VO2(B) were further researched. The results show that VO2(B) nanobelt arrays synthesized at 180 ℃ for 6 h using 10 mL ethylene glycol have better electrochemical performance in the voltage range of 1.5-4 V. © 2018, Science Press. All right reserved.

引用

页码：1151 / 1158

页数：7

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