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Chinese Science Bulletin

, Volume 58, Issue 10, pp 1150–1155

First Online: 11 January 2013Received: 14 July 2012Accepted: 16 November 2012DOI: 10.1007-s11434-012-5656-3

Cite this article as: Huang, L., Huang, W., Fu, H. et al. Chin. Sci. Bull. 2013 58: 1150. doi:10.1007-s11434-012-5656-3


This study investigates the effect FeCl3 on the radiation stability of the ionic liquid, 1-butyl-3-methylimidazolium chloride BmimCl over a wide dose range of 0 to 1000 kGy under γ-ray radiation. The ionic liquid species, BmimFeCl4, was formed by adding FeCl3 into BmimCl. The results showed that the presence of FeCl4 significantly improved the radiation resistance of BmimCl, wherein the effect was more pronounced at higher FeCl4 content. Meanwhile, under irradiation, FeII was generated from FeIII, which was reduced by solvated electron. In addition, the concentration of FeII increased with low level of absorbed dose, but leveled off at higher doses. Moreover, the radiation yield of the solvated electrons of BmimCl was further estimated at approximately 0.358±0.01 μmol-J in BmimCl-7 mol% FeCl3 system.

Keywordsradiation ionic liquid FeCl3 BmimFeCl4 solvated electron This article is published with open access at

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Autor: Lei Huang - Wei Huang - HaiYing Fu - GuoZhong Wu - ZhiJun Guo - WangSuo Wu - ShiMou Chen


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