Dual-site cooperation for synergistic optimization of the band structure and spin state to facilitate C–N coupling reaction

Proceedings of the National Academy of Sciences, Volume 122, Issue 43, October 2025. <br/>SignificanceElectrocatalytic C–N coupling of carbon dioxide (CO2) and nitrite (NO2−) under ambient conditions provides an emerging approach toward green urea synthesis. Nevertheless, a lack of in-depth understanding of the C–N coupling mechanism severely …