Shiyao Shang, Wangchun Duan, Xue Zeng, Xijun Liu and Ke Chu*,
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引用次数: 0
摘要
NO3 -和CO2的电催化共还原制尿素（ENCU）为实现高效尿素生产和去除有害的NO3 -提供了一种很有前途的方法。在本研究中，p嵌段Bi分散的Ru （RuBi1）合金被设计为高效耐用的ENCU电催化剂。联合操作光谱测量和理论计算表明，RuBi1上的Ru-Ru位点和Ru-Bi1位点可以协同促进*CO/*NH2的生成和C-N的偶联，同时抑制竞争性副反应，从而导致较高的CO2/NO3——制尿素效率。值得一提的是，RuBi1在流动池中的尿素产率为32.94 mmol h - 1 g-1，法拉第效率为52.96%，并且在电解100 h时具有优异的稳定性。
Boosted Nitrate and CO2 Reduction for Urea Electrosynthesis on p-Block Bi Dispersed Ru Alloys
Electrocatalytic coreduction of NO3– and CO2 to urea (ENCU) provides a promising approach for attaining both efficient urea production and harmful NO3– removal. In this study, p-block Bi dispersed Ru (RuBi1) alloys are designed as an efficient and durable ENCU electrocatalyst. The combined operando spectroscopic measurements and theoretical calculations unravel that the Ru–Ru site and Ru–Bi1 site on RuBi1 can synergetically promote *CO/*NH2 generation and C–N coupling, while hampering the competitive side reactions, thereby leading to a high CO2/NO3–-to-urea efficiency. Notably, RuBi1 in a flow cell delivers an impressive urea yield rate of 32.94 mmol h–1 g–1 and a Faradaic efficiency of 52.96% along with excellent stability for 100 h of electrolysis.
期刊介绍：
ACS Sustainable Chemistry & Engineering is a prestigious weekly peer-reviewed scientific journal published by the American Chemical Society. Dedicated to advancing the principles of green chemistry and green engineering, it covers a wide array of research topics including green chemistry, green engineering, biomass, alternative energy, and life cycle assessment.
The journal welcomes submissions in various formats, including Letters, Articles, Features, and Perspectives (Reviews), that address the challenges of sustainability in the chemical enterprise and contribute to the advancement of sustainable practices. Join us in shaping the future of sustainable chemistry and engineering.
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