Nature CommunicationsDynamic chloride coordination enables selective pulsed electrocatalytic upcycling of 4-chlorophenol on FeN2O2 single-atom catalystJiachen WangJinxin LiMengjiao XieXie QuanYanbiao Liu2026-08-05Full textDOI https://doi.org/10.1038/s41467-026-76319-4