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Belousov–Zhabotinsky Reaction in Protic Ionic Liquids

Authors

  • Dr. Takeshi Ueki,

    1. Department of Materials Engineering School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan)
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  • Prof. Dr. Masayoshi Watanabe,

    1. Department of Chemistry & Biotechnology, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501 (Japan)
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  • Prof. Dr. Ryo Yoshida

    Corresponding author
    1. Department of Materials Engineering School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan)
    • Department of Materials Engineering School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan)
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  • This work was supported in part by Research Fellowships of the Japan Society for the Promotion of Science for Young Scientists (grant number 11J07791 to T.U.) and Grants-in-Aid for Scientific Research (grant numbers 452/17073009, B/20350104, and A/23245046 to M.W. and 22245037 to R.Y.) from the Ministry of Education (Japan). We acknowledge Mr. Hiroshi Kinoshita, Mr. Muhammed Shah Miran, and Mr. Masakatsu Niwa for generously providing some protic ionic liquids and Dr. Tomohiro Yasuda for helpful discussions.

Abstract

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The Belousov–Zhabotinsky (BZ) reaction using hydrated protic ionic liquid (PIL) as reaction medium is reported. For the first time it is found that the BZ oscillation reaction occurred in certain hydrated PILs without adding strong acid such as HNO3 (see red oscillation profile). Furthermore, a stable and long-lasting self-oscillation can be realized when the component concentrations of the BZ medium are optimized.

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