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Carbon neutral hydrogen storage and release cycles based on dual-functional roles of formamides

Author

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  • Duo Wei

    (Harbin Institute of Technology
    Leibniz-Institut für Katalyse e.V)

  • Xinzhe Shi

    (Harbin Institute of Technology
    Leibniz-Institut für Katalyse e.V)

  • Henrik Junge

    (Leibniz-Institut für Katalyse e.V)

  • Chunyu Du

    (Harbin Institute of Technology)

  • Matthias Beller

    (Leibniz-Institut für Katalyse e.V)

Abstract

The development of alternative clean energy carriers is a key challenge for our society. Carbon-based hydrogen storage materials are well-suited to undergo reversible (de)hydrogenation reactions and the development of catalysts for the individual process steps is crucial. In the current state, noble metal-based catalysts still dominate this field. Here, a system for partially reversible and carbon-neutral hydrogen storage and release is reported. It is based on the dual-functional roles of formamides and uses a small molecule Fe-pincer complex as the catalyst, showing good stability and reusability with high productivity. Starting from formamides, quantitative production of CO-free hydrogen is achieved at high selectivity ( > 99.9%). This system works at modest temperatures of 90 °C, which can be easily supplied by the waste heat from e.g., proton-exchange membrane fuel cells. Employing such system, we achieve >70% H2 evolution efficiency and >99% H2 selectivity in 10 charge-discharge cycles, avoiding undesired carbon emission between cycles.

Suggested Citation

  • Duo Wei & Xinzhe Shi & Henrik Junge & Chunyu Du & Matthias Beller, 2023. "Carbon neutral hydrogen storage and release cycles based on dual-functional roles of formamides," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-39309-4
    DOI: 10.1038/s41467-023-39309-4
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    References listed on IDEAS

    as
    1. Daniel Forberg & Tobias Schwob & Muhammad Zaheer & Martin Friedrich & Nobuyoshi Miyajima & Rhett Kempe, 2016. "Single-catalyst high-weight% hydrogen storage in an N-heterocycle synthesized from lignin hydrogenolysis products and ammonia," Nature Communications, Nature, vol. 7(1), pages 1-6, December.
    2. Duo Wei & Rui Sang & Peter Sponholz & Henrik Junge & Matthias Beller, 2022. "Reversible hydrogenation of carbon dioxide to formic acid using a Mn-pincer complex in the presence of lysine," Nature Energy, Nature, vol. 7(5), pages 438-447, May.
    3. Zhihui Shao & Yang Li & Chenguang Liu & Wenying Ai & Shu-Ping Luo & Qiang Liu, 2020. "Reversible interconversion between methanol-diamine and diamide for hydrogen storage based on manganese catalyzed (de)hydrogenation," Nature Communications, Nature, vol. 11(1), pages 1-7, December.
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