Nature CommunicationsNano-confinement engineering boosts C–N coupling for urea electrosynthesisJiaxin DuYunshuo WuSiyu FangDaliang XuMin LiuHeng LiangZhongbiao WuGaoqing Max LuXuanhao Wu2025-12-26Full textDOI https://doi.org/10.1038/s41467-025-67741-1