Catalytic nitrogen fixation using visible light energy

Yuya Ashida, Yuto Onozuka, Kazuya Arashiba, Asuka Konomi, Hiromasa Tanaka, Shogo Kuriyama, Yasuomi Yamazaki, Kazunari Yoshizawa () and Yoshiaki Nishibayashi ()
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Yuya Ashida: The University of Tokyo
Yuto Onozuka: The University of Tokyo
Kazuya Arashiba: The University of Tokyo
Asuka Konomi: Kyushu University
Hiromasa Tanaka: Daido University
Shogo Kuriyama: The University of Tokyo
Yasuomi Yamazaki: The University of Tokyo
Kazunari Yoshizawa: Kyushu University
Yoshiaki Nishibayashi: The University of Tokyo

Nature Communications, 2022, vol. 13, issue 1, 1-8

Abstract: Abstract The synthesis of ammonia from atmospheric dinitrogen, nitrogen fixation, is one of the essential reactions for human beings. Because the current industrial nitrogen fixation depends on dihydrogen produced from fossil fuels as raw material, the development of a nitrogen fixation reaction that relies on the energy provided by renewable energy, such as visible light, is an important research goal from the viewpoint of sustainable chemistry. Herein, we establish an iridium- and molybdenum-catalysed process for synthesizing ammonia from dinitrogen under ambient reaction conditions and visible light irradiation. In this reaction system, iridium complexes and molybdenum triiodide complexes bearing N-heterocyclic carbene-based pincer ligands act as cooperative catalysts to activate 9,10-dihydroacridine and dinitrogen, respectively. The reaction of dinitrogen with 9,10-dihydroacridine is not thermodynamically favoured, and it only takes place under visible light irradiation. Therefore, the described reaction system is one that affords visible light energy–driven ammonia formation from dinitrogen catalytically.

Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-34984-1

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DOI: 10.1038/s41467-022-34984-1

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