Boosted Nitrateand CO<sub>2</sub> Reduction for UreaElectrosynthesis on p‑Block Bi Dispersed Ru Alloys
Electrocatalytic coreduction of NO<sub>3</sub><sup>–</sup> and CO<sub>2</sub> to urea (ENCU) provides a promising approach for attaining both efficient urea production and harmful NO<sub>3</sub><sup>–</sup> removal. In this study, p-block Bi dispersed Ru (RuBi<sub>1</sub>) 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–Bi<sub>1</sub> site on RuBi<sub>1</sub> can synergetically promote *CO/*NH<sub>2</sub> generation and C–N coupling, while hampering the competitive side reactions, thereby leading to a high CO<sub>2</sub>/NO<sub>3</sub><sup>–</sup>-to-urea efficiency. Notably, RuBi<sub>1</sub> in a flow cell delivers an impressive urea yield rate of 32.94 mmol h<sup>–1</sup> g<sup>–1</sup> and a Faradaic efficiency of 52.96% along with excellent stability for 100 h of electrolysis.
Publication Details
- Journal
- Figshare
- Published
- 2025-02-10
- DOI
- https://doi.org/10.1021/acssuschemeng.4c09648.s001
- Primary Topic
- Wheat and Barley Genetics and Pathology
- Type
- article
- Field-Weighted Citation Impact
- 0.00