In:
Chinese Journal of Chemistry, Wiley, Vol. 39, No. 7 ( 2021-07), p. 1898-1904
Abstract:
Inspired by the nitrogen fixation process on MoFe nitrogenase, asymmetrical coordinated Fe grafted onto 1T MoS 2 were successfully synthesized. The unique electron‐rich structure with asymmetrical coordination made the 1T Fe 0.1 Mo 0.9 S 2 layered material actively react with water and dinitrogen at room temperature and atmosphere pressure. Subsequently, ammonia can be produced with a yield of ~800 μmol (NH 4 + ) g −1 (12.5% yield in mole). The activation, fixation and reduction of dinitrogen were confirmed by isotopically labeled experiments. The location and the specific coordination environment of grafted Fe in Fe‐Mo‐S were further determined by X‐ray absorption spectroscopy analysis. Our work demonstrates that the nitrogen fixation and reduction for ammonia at room temperature without any chemical and electrochemical assistance is distinctly different from traditional bionic‐inspired nitrogen fixation process. The mechanism of the activation and reduction of N 2 was further investigated by density functional theory calculation and Raman spectra. Compared with 1T MoS 2 , the enriched electron nature and asymmetrical coordination of Fe in Fe‐Mo‐S materials play a critical role in the bioinspired activation of N 2 at ambient condition.
Type of Medium:
Online Resource
ISSN:
1001-604X
,
1614-7065
DOI:
10.1002/cjoc.202000675
Language:
English
Publisher:
Wiley
Publication Date:
2021
detail.hit.zdb_id:
2144352-X
SSG:
6,25
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