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A ketone/alcohol polymer for cycle of electrolytic hydrogen-fixing with water and releasing under mild conditions

Author

Listed:
  • Ryo Kato

    (Waseda University)

  • Keisuke Yoshimasa

    (Waseda University)

  • Tatsuya Egashira

    (Waseda University)

  • Takahiro Oya

    (Waseda University)

  • Kenichi Oyaizu

    (Waseda University)

  • Hiroyuki Nishide

    (Waseda University)

Abstract

Finding a safe and efficient carrier of hydrogen is a major challenge. Recently, hydrogenated organic compounds have been studied as hydrogen storage materials because of their ability to stably and reversibly store hydrogen by forming chemical bonds; however, these compounds often suffer from safety issues and are usually hydrogenated with hydrogen at high pressure and/or temperature. Here we present a ketone (fluorenone) polymer that can be moulded as a plastic sheet and fixes hydrogen via a simple electrolytic hydrogenation at −1.5 V (versus Ag/AgCl) in water at room temperature. The hydrogenated alcohol derivative (the fluorenol polymer) reversibly releases hydrogen by heating (80 °C) in the presence of an aqueous iridium catalyst. Both the use of a ketone polymer and the efficient hydrogen fixing with water as a proton source are completely different from other (de)hydrogenated compounds and hydrogenation processes. The easy handling and mouldable polymers could suggest a pocketable hydrogen carrier.

Suggested Citation

  • Ryo Kato & Keisuke Yoshimasa & Tatsuya Egashira & Takahiro Oya & Kenichi Oyaizu & Hiroyuki Nishide, 2016. "A ketone/alcohol polymer for cycle of electrolytic hydrogen-fixing with water and releasing under mild conditions," Nature Communications, Nature, vol. 7(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms13032
    DOI: 10.1038/ncomms13032
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