2026-08-24 東北大学

図1. 多価アルコール (LOHC) のH2貯蔵性能とグリーンH2製造・貯蔵サイクル
<関連情報>
- https://www.tohoku.ac.jp/japanese/2026/08/press20260824-02-H2.html
- https://pubs.rsc.org/ta/article/doi/10.1039/d6ta03349k/1293888/Hydrogen-gas-production-and-storage-cycle-of
多価アルコール/多価ケトンの水素ガス製造および貯蔵サイクル
Hydrogen gas production and storage cycle of polyhydric alcohols/polyketones
Takumi Ichimura;Takuro Tsutsumi;Kazuki Sada;Hitoshi Kasai;Takahiro Matsumoto;Kouki Oka
Journal of Materials Chemistry A Published:24 August 2026
DOI:https://doi.org/10.1039/d6ta03349k
Liquid organic hydrogen carriers (LOHCs) store hydrogen gas (H2) safely and reversibly through covalent bonding via hydrogenation and dehydrogenation reactions, enabling large-scale H2 transportation using gasoline infrastructure. Among them, monohydric alcohols/monoketones can release H2 under mild conditions (<200 °C) due to their low dehydrogenation enthalpies. In this work, we demonstrate a new class of LOHCs based on polyhydric alcohols/polyketones, which can store H2 densely while maintaining the low dehydrogenation enthalpies of monohydric alcohols. In addition, novel hydrogenation methods from renewable resources (water or the coenzymes contained in baker’s yeast) are demonstrated based on electrochemical hydrogenation and alcoholic fermentation with baker’s yeast. Furthermore, we provide proof of concept for the dehydrogenation method using non-precious, earth-abundant iron ions (e.g., Fe(ii) ion) as catalysts. This work establishes the novel concept of a H2 production and storage cycle using polyhydric alcohols/polyketones.


