Efficient C-N coupling in electrocatalytic urea generation on copper carbonate hydroxide electrocatalysts

Wang，Yinuo1,2; Wang，Yian2; Zhao，Qinglan2; Xu，Hongming2,5; Zhu，Shangqian2; Yang，Fei2,3; Delmo，Ernest P.2; Qiu，Xiaoyi2; Song，Chi1; Jang，Juhee2; Li，Tiehuai2; Gao，Ping1,2; Danny Gu，M.3; Shao，Minhua1,2,4

2024-06-01

10.1016/j.jechem.2024.02.020

Journal of Energy Chemistry   影响因子和分区

2095-4956

Urea generation through electrochemical CO and NO co-reduction reaction (CONORR) is still limited by either the low selectivity or yield rate of urea. Herein, we report copper carbonate hydroxide (Cu(OH)CO) as an efficient CONORR electrocatalyst with an impressive urea Faradaic efficiency of 45.2% ± 2.1% and a high yield rate of 1564.5 ± 145.2 μg h mg. More importantly, H evolution is fully inhibited on this electrocatalyst over a wide potential range between −0.3 and −0.8 V versus reversible hydrogen electrode. Our thermodynamic simulation reveals that the first C-N coupling follows a unique pathway on Cu(OH)CO by combining the two intermediates, *COOH and *NHO. This work demonstrates that high selectivity and yield rate of urea can be simultaneously achieved on simple Cu-based electrocatalysts in CONORR, and provide guidance for rational design of more advanced catalysts.

C-N coupling Co-reduction Copper carbonate hydroxide DFT calculation Urea generation

SCI ; EI

英语

其他

2-s2.0-85186956982

Scopus

1.Advanced Materials Thrust,The Hong Kong University of Science and Technology (Guangzhou),Guangzhou,Guangdong,511400,China
2.Department of Chemical and Biological Engineering,The Hong Kong University of Science and Technology,Clear Water Bay, Kowloon,Hong Kong
3.Department of Materials Science and Engineering,Southern University of Science and Technology of China,Shenzhen,1088 Xueyuan Boulevard, Guangdong,518055,China
4.Energy Institute,Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution,The Hong Kong University of Science and Technology,Kowloon,Hong Kong
5.Department of Chemistry,City University of Hong Kong,Tat Chee Avenue, Kowloon,Hong Kong

Wang，Yinuo,Wang，Yian,Zhao，Qinglan,et al. Efficient C-N coupling in electrocatalytic urea generation on copper carbonate hydroxide electrocatalysts[J]. Journal of Energy Chemistry,2024,93:289-298.

Wang，Yinuo.,Wang，Yian.,Zhao，Qinglan.,Xu，Hongming.,Zhu，Shangqian.,...&Shao，Minhua.(2024).Efficient C-N coupling in electrocatalytic urea generation on copper carbonate hydroxide electrocatalysts.Journal of Energy Chemistry,93,289-298.

Wang，Yinuo,et al."Efficient C-N coupling in electrocatalytic urea generation on copper carbonate hydroxide electrocatalysts".Journal of Energy Chemistry 93(2024):289-298.