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1 May 2007 Gamma Radiolysis of Ionic Liquid 1-Butyl-3-methylimidazolium Hexafluorophosphate
Mingying Qi, Guozhong Wu, Shimou Chen, Yaodong Liu
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Abstract

Qi, M. Y., Wu, G. Z., Chen, S. M. and Liu, Y. D. Gamma Radiolysis of Ionic Liquid 1-Butyl-3-methylimidazoliumHexafluorophosphate. Radiat. Res. 167, 508–514 (2007).

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 γ 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 γ 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.

Mingying Qi, Guozhong Wu, Shimou Chen, and Yaodong Liu "Gamma Radiolysis of Ionic Liquid 1-Butyl-3-methylimidazolium Hexafluorophosphate," Radiation Research 167(5), 508-514, (1 May 2007). https://doi.org/10.1667/RR0727.1
Received: 21 June 2006; Accepted: 1 November 2006; Published: 1 May 2007
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