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Showing 1–5 of 5 results
Advanced filters: Author: Michikazu Hara Clear advanced filters

  • Ammonia synthesis via the Haber–Bosch process typically takes place at an elevated temperature in order to achieve a reasonable rate. Here the authors report on a CaFH solid solution with low activation energy for catalytic ammonia synthesis at lower temperatures.

    • Masashi Hattori
    • Shinya Iijima
    • Michikazu Hara
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-8

  • Development of catalysts that enhance dissociation of the nitrogen–nitrogen triple bond will reduce costs of ammonia production. Here, the authors study ammonia synthesis over a ruthenium loaded electride catalyst and show that the rate-determining step is shifted to nitrogen–hydrogen bond formation.

    • Masaaki Kitano
    • Shinji Kanbara
    • Hideo Hosono
    ResearchOpen Access
    Nature Communications
    Volume: 6, P: 1-9

  • Zeolitic transition metal oxides provide both porosity and redox activity, thereby further expanding the diversity of porous materials, but their design and development remain rare. Here, the authors report a new class of zeolitic vanadotungstates with tunable frameworks exhibiting a large porosity and redox activity.

    • Zhenxin Zhang
    • Qianqian Zhu
    • Wataru Ueda
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-11

  • Methods that fix atmospheric nitrogen to ammonia under mild conditions could offer a more environmentally benign alternative to the Haber–Bosch process. Now, a Ru-loaded electride, [Ca24Al28O64]4+(e−)4, is reported that acts as an efficient electron donor and reversible hydrogen store, and is demonstrated to function as an efficient catalyst for ammonia synthesis.

    • Masaaki Kitano
    • Yasunori Inoue
    • Hideo Hosono
    Research
    Nature Chemistry
    Volume: 4, P: 934-940