Effects of gamma radiation on electrochemical properties of ionic liquids

被引：10

作者：

Bridges, N. J. ^{[1
]}

Visser, A. E. ^{[1
]}

Williamson, M. J. ^{[1
]}

Mickalonis, J. I. ^{[1
]}

Adams, T. M. ^{[1
]}

机构：

[1] Savannah River Natl Lab, Aiken, SC 29808 USA

来源：

RADIOCHIMICA ACTA | 2010年 / 98卷 / 04期

关键词：

Ionic liquids; Electrochemical window; Irradiation; ACTINIDE CHEMISTRY;

D O I：

10.1524/ract.2010.1704

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The electrochemical properties of ionic liquids (ILs) make them attractive for possible replacement of inorganic salts in high temperature molten salt electrochemical processing of nuclear fuel. To be a feasible replacement solvent, ILs need to be stable in moderate and high doses of radiation without adverse chemical and physical effects. Here, we exposed seven different ILs to a 1.2 MGy dose of gamma radiation to investigate their physical and chemical properties as they related to radiological stability. The azolium-based ILs experienced the greatest change in appearance, but these ILs were chemically more stable to gamma radiation than some of the other classes of ILs tested, due to the presence of aromatic electrons in the azolium ring. All the ILs exhibited a decrease in their conductivity and electrochemical window (at least 1.1 V), both of which could affect the utility of ILs in electrochemical processing. The concentration of the irradiation decomposition products was less than 3 mol. %, with no impurities detectable using NMR techniques.

引用

页码：243 / 247

页数：5