当前位置: X-MOL 学术Nat. Commun. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Catalytic nitrogen fixation using visible light energy
Nature Communications ( IF 16.6 ) Pub Date : 2022-12-01 , DOI: 10.1038/s41467-022-34984-1
Yuya Ashida 1 , Yuto Onozuka 1 , Kazuya Arashiba 1 , Asuka Konomi 2 , Hiromasa Tanaka 3 , Shogo Kuriyama 1 , Yasuomi Yamazaki 1 , Kazunari Yoshizawa 2 , Yoshiaki Nishibayashi 1
Affiliation  

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.



中文翻译:

利用可见光能催化固氮

从大气中的氮气合成氨,即固氮,是人类必不可少的反应之一。由于目前工业固氮依赖于化石燃料产生的氢气作为原料,因此从可持续化学的角度来看,发展依赖于可见光等可再生能源提供能量的固氮反应是一个重要的研究目标. 在此,我们建立了一种铱和钼催化工艺,用于在环境反应条件和可见光照射下从二氮合成氨。在该反应体系中,铱配合物和三碘化钼配合物带有N- 基于杂环卡宾的钳形配体作为协同催化剂分别激活 9,10-二氢吖啶和二氮。二氮与 9,10-二氢吖啶的反应在热力学上不是有利的,它只在可见光照射下发生。因此,所描述的反应系统是一种提供可见光能量驱动的从二氮催化形成氨的反应系统。

更新日期:2022-12-01
down
wechat
bug