Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2015, Vol. 26 ›› Issue (3): 030302 doi: 10.13538/j.1001-8042/nst.26.030302


Identification of radiolytic products of [C4mim][PF6] under -irradiation

AO Yin-Yong ,1 XU Min, 1 PENG Jing , 1 LI Jiu-Qiang, 1 ZHAI Mao-Lin, 1 and WU Guo-Zhong 2   

  1. 1Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory for Fundamental Science, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
    2Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
  • Supported by:

    Supported by the National Natural Science Foundation of China (Nos. 91126014 and 11079007) and the Research Fund for the Doctoral Program of Higher Education of China (No. 20100001110021)

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AO Yin-Yong, XU Min, PENG Jing, LI Jiu-Qiang, ZHAI Mao-Lin, and WU Guo-Zhong . Identification of radiolytic products of [C4mim][PF6] under -irradiation.Nuclear Science and Techniques, 2015, 26(3): 030302     doi: 10.13538/j.1001-8042/nst.26.030302


The trace water-soluble radiolytic products of neat 1-butyl-3-methylimidazolium hexafluorophosphate ([C4mim][PF6]) were identified by analysing water-washed samples of -irradiated ionic liquids. HF and difluorophosphinic acid were confirmed as the main radiolytic products of [C4mim][PF6], and their radiation chemical yields were quantified by 19F NMR (G(F-) = 0.14 μmol/J, G(HOP(O)F2) = 0.053 μmol/J). Compared to [C4mim][NTf2], [C4mim][PF6] shows better radiation stability.

Key words: [C4mim][PF6], irradiation, Radiolytic products, Radiation chemical yields