کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10732080 | 1043535 | 2011 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fluoride ion yield and absorption spectral analysis of irradiated imidazolium-based room-temperature ionic liquids
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
تشعشع
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چکیده انگلیسی
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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Physics and Chemistry - Volume 80, Issue 4, April 2011, Pages 573-577
Journal: Radiation Physics and Chemistry - Volume 80, Issue 4, April 2011, Pages 573-577
نویسندگان
Wei Huang, Shimou Chen, Yusheng Liu, Haiying Fu, Guozhong Wu,