In:
Catalysis Science & Technology, Royal Society of Chemistry (RSC), Vol. 11, No. 20 ( 2021), p. 6750-6754
Abstract:
Ammonia as a vital chemical is not only indispensable to agriculture but also crucial to some energy devices like fuel cells. However, conventional ammonia production remains energy-intensive and environmentally hostile, and thus electrochemical synthesis of ammonia under mild conditions receives increasing attention. Herein, we report nanoflower-like yttrium fluoride (YF 3 ) as a high-efficiency electrocatalyst for the nitrogen reduction reaction (NRR) for the synthesis of ammonia. Such a catalyst exhibits an ammonia yield rate of 15.5 μg h −1 mg cat −1 and a faradaic efficiency (FE) of 26.2% in 0.1 M Na 2 SO 4 , and also shows excellent selectivity and stability. Density functional theory (DFT) calculations indicate that electrons transfer from the NN bond to N–Y and N–H bonds, and the activation of N 2 molecules promotes the adsorption of H atoms.
Type of Medium:
Online Resource
ISSN:
2044-4753
,
2044-4761
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2021
detail.hit.zdb_id:
2595090-3
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