Nature CommunicationsOperando nuclear magnetic resonance decodes alkali-tuned proton-electron relay boosting CO2-to-formate conversionYingli ShiYing LiuHongchun DongGaocheng FuHang ZhouHaifeng WangXue-Lu WangYe-Feng Yao2026-01-20Full textDOI https://doi.org/10.1038/s41467-026-68604-z