Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10732080 | Radiation Physics and Chemistry | 2011 | 5 Pages |
Abstract
The radiation chemical yields of F ions (G(Fâ) values) were measured for a group of imidazolium-based room-temperature ionic liquids following 60Co gamma ray irradiation. The G(Fâ) values of ionic liquids: hexafluorophosphate, bis[(trifluoromethyl)sulfonyl]imide, trifluoromethanesulfonate and tetrafluoroborate anions associated with 1-butyl-3-methylimidazolium cations were determined to be 0.227, 0.136, 0.101 and 0.008 μmol Jâ1, respectively. The G(Fâ) value is dependent on the F-X (X=B, P, etc.) bond energy and the anion structure and can be considered as an indicator of the radiation stability of fluorine-containing ionic liquids. In addition, as confirmed by UV-Vis absorption measurement, the radiolytic products with strong photoabsorption and color darkening depend on the structures of both the cation and the anion.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Radiation
Authors
Wei Huang, Shimou Chen, Yusheng Liu, Haiying Fu, Guozhong Wu,