In:
Journal of Materials Chemistry A, Royal Society of Chemistry (RSC), Vol. 11, No. 21 ( 2023), p. 11495-11506
Abstract:
Generating high-energy compounds with heteroatomic bonds via electrochemical reactions has attracted interest owing to the highly desired goal of achieving a net zero carbon state. In this dimension, herein, heteroatomic compounds, such as acetamide (CH 3 CONH 2 ), were successfully produced together with the formation of ethylene glycol and other C 2+ compounds by integrating CO 2 RR with nitrate reduction reaction (NtRR). Highly porous nickel nanodendrites (p-Ni NDs) with a porifera architecture were constructed via the electrodeposition method and subsequent etching process. In 0.05 M KNO 3 and 0.5 M KHCO 3 electrolyte, p-Ni NDs generated acetamide and ethylene glycol at the yield rate of 657 μg h −1 cm −2 and 640 μg h −1 cm −2 with an FE of 23.2% and 18.0% under an applied voltage of −0.3 V vs. RHE, respectively. 1 H NMR spectroscopy was extensively used to detect and quantify the products. During the reaction, the surface of p-Ni NDs remained in the metallic state, which was confirmed by several X-ray spectroscopic techniques. Density functional theory (DFT) calculations revealed that *COHCOH (a) is the crucial intermediate in the production of acetamide. Both the experimental and theoretical experiments substantiated the high activity of p-Ni NDs towards acetamide formation via C–N coupling.
Type of Medium:
Online Resource
ISSN:
2050-7488
,
2050-7496
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2023
detail.hit.zdb_id:
2702232-8
detail.hit.zdb_id:
2696984-1
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