Comparative ion insertion study into a nanostructured vanadium oxide in aqueous salt solutions

被引：4

作者：

Yuan, Q. ^{[1
]}

Ren, S. L. ^{[1
]}

Zukowski, J. ^{[1
]}

Pomeroy, M. ^{[1
]}

Soghomonian, V. ^{[1
]}

机构：

[1] Virginia Tech, Dept Phys, Blacksburg, VA 24061 USA

来源：

APPLIED PHYSICS LETTERS | 2014年 / 105卷 / 01期

基金：

美国国家科学基金会;

关键词：

ELECTROCHEMICAL PROPERTIES; BATTERY; SODIUM; ELECTROLYTES; ELECTRODES;

D O I：

10.1063/1.4887367

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present a comparative study for the electrochemical insertion of different cations into a nanostructured vanadium oxide material. The oxide is hydrothemally synthesized and electrically characterized by variable temperature measurements. The electrochemical reactions are performed in aqueous chloride solutions of lithium, sodium, potassium, and ammonium, and the electrochemical behavior of various cycles are correlated with visual changes in the vanadium oxide nanosheets as observed by scanning electron microscopy. We note an increase in the specific charge per cycle in the cases of sodium and ammonium ions only, correlated with minimal physical changes to the nanosheets. The differing behavior of the various ions has implications for their use in electrical energy storage applications. (C) 2014 AIP Publishing LLC.

引用

页数：4

共 18 条

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Armand M, 2009, NAT MATER, V8, P621, DOI [10.1038/NMAT2448, 10.1038/nmat2448]

[2]

Dong W, 2000, ELECTROCHEM SOLID ST, V3, P457

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