Gamma Radiolysis of ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate

被引：51
作者：
Qi, Mingying
Wu, Guozhong
Chen, Shimou
Liu, Yaodong
机构：
[1] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
来源：
RADIATION RESEARCH | 2007年 / 167卷 / 05期
关键词：
D O I：
10.1667/RR0727.1
中图分类号：
Q [生物科学];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The applications of room-temperature ionic liquids in the nuclear fuel cycle and radiation chemistry depend on a comprehensive knowledge of their stability and chemical properties under radiation conditions. In this work, the effect of gamma radiation on pure ionic liquid [bmim][PF6] was investigated in detail. The radiolysis of [bmim][PF6] leads to an increase of UV-vis absorbance and a decrease of fluorescence intensity with increasing radiation dose. Raman spectra proved that gamma radiation induced significant chemical scission of the n-butyl group (e.g. C-H and C-C scission) and damage to the [PF6](-) anion. When the irradiated [bmim][PF6] samples were cooled, two crystal structures were found to coexist, and they suffered a continuous destruction under irradiation; their dose dependence, however, was different. (c) 2007 by Radiation Research Society.
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页码：508 / 514
页数：7
相关论文
共 30 条
[1]   An investigation of the radiochemical stability of ionic liquids [J].
Allen, D ;
Baston, G ;
Bradley, AE ;
Gorman, T ;
Haile, A ;
Hamblett, I ;
Hatter, JE ;
Healey, MJF ;
Hodgson, B ;
Lewin, R ;
Lovell, KV ;
Newton, B ;
Pitner, WR ;
Rooney, DW ;
Sanders, D ;
Seddon, KR ;
Sims, HE ;
Thied, RC .
GREEN CHEMISTRY, 2002, 4 (02) :152-158
[2]  
[Anonymous], DALTON T
[3]   Reaction kinetics in ionic liquids: Pulse radiolysis studies of 1-butyl-3-methylimidazolium salts [J].
Behar, D ;
Gonzalez, C ;
Neta, P .
JOURNAL OF PHYSICAL CHEMISTRY A, 2001, 105 (32) :7607-7614
[4]   Raman and ab initio studies of simple and binary 1-alkyl-3-methylimidazolium ionic liquids [J].
Berg, RW ;
Deetlefs, M ;
Seddon, KR ;
Shim, I ;
Thompson, JM .
JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (40) :19018-19025
[5]  
Berthon L, 2006, DALTON T, P2526, DOI 10.1039/b601111j
[6]   Structural characterization of a lanthanum bistriflimide complex, La(N(SO2CF3)2)3(H2O)3, and an investigation of La, Sm, and Eu electrochemistry in a room-temperature ionic liquid, [Me3NnBu][N(SO2CF3)2] [J].
Bhatt, AI ;
May, I ;
Volkovich, VA ;
Collison, D ;
Helliwell, M ;
Polovov, IB ;
Lewin, RG .
INORGANIC CHEMISTRY, 2005, 44 (14) :4934-4940
[7]   Stability of divalent europium in an ionic liquid: Spectroscopic investigations in 1-methyl-3-butylimidazolium hexafluorophosphate [J].
Billard, I ;
Moutiers, G ;
Labet, A ;
El Azzi, A ;
Gaillard, C ;
Mariet, C ;
Lutzenkirchen, K .
INORGANIC CHEMISTRY, 2003, 42 (05) :1726-1733
[8]   Precipitation of a dioxouranium(VI) species from a room temperature ionic liquid medium [J].
Bradley, AE ;
Hatter, JE ;
Nieuwenhuyzen, M ;
Pitner, WR ;
Seddon, KR ;
Thied, RC .
INORGANIC CHEMISTRY, 2002, 41 (07) :1692-1694
[9]   Solvent properties of the 1-butyl-3-methylimidazolium hexafluorophosphate ionic liquid [J].
Carda-Broch, S ;
Berthod, A ;
Armstrong, DW .
ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 2003, 375 (02) :191-199
[10]   Stabilized and size-tunable gold nanoparticles formed in a quaternary ammonium-based room-temperature ionic liquid under γ-irradiation [J].
Chen, SM ;
Liu, YD ;
Wu, GZ .
NANOTECHNOLOGY, 2005, 16 (10) :2360-2364
123