Efficient electrosynthesis of formamide from carbon monoxide and nitrite on a Ru-dispersed Cu nanocluster catalyst

Jiao Lan, Zengxi Wei, Ying-Rui Lu, DeChao Chen, Shuangliang Zhao, Ting-Shan Chan () and Yongwen Tan ()
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Jiao Lan: Hunan University
Zengxi Wei: Guangxi University
Ying-Rui Lu: National Synchrotron Radiation Research Center
DeChao Chen: Hunan University
Shuangliang Zhao: Guangxi University
Ting-Shan Chan: National Synchrotron Radiation Research Center
Yongwen Tan: Hunan University

Nature Communications, 2023, vol. 14, issue 1, 1-10

Abstract: Abstract Conversion into high-value-added organic nitrogen compounds through electrochemical C-N coupling reactions under ambient conditions is regarded as a sustainable development strategy to achieve carbon neutrality and high-value utilization of harmful substances. Herein, we report an electrochemical process for selective synthesis of high-valued formamide from carbon monoxide and nitrite with a Ru1Cu single-atom alloy under ambient conditions, which achieves a high formamide selectivity with Faradaic efficiency of 45.65 ± 0.76% at −0.5 V vs. RHE. In situ X-ray absorption spectroscopy, coupled with in situ Raman spectroscopy and density functional theory calculations results reveal that the adjacent Ru-Cu dual active sites can spontaneously couple *CO and *NH2 intermediates to realize a critical C-N coupling reaction, enabling high-performance electrosynthesis of formamide. This work offers insight into the high-value formamide electrocatalysis through coupling CO and NO2− under ambient conditions, paving the way for the synthesis of more-sustainable and high-value chemical products.

Date: 2023
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DOI: 10.1038/s41467-023-38603-5

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