Green Electrosynthesis of Formamide: CN Bond Construction From Plastic Waste and Ammonia

Formamide is an essential chemical intermediate, yet its industrial synthesis remains fossil‐dependent and energy‐intensive. Here, we report an electrocatalytic route for directly synthesizing formamide from ammonia and ethylene glycol (EG) using a Pd/NiCo‐LDH catalyst, achieving a Faradaic efficiency of 58.4% and a yield rate of 1.28 mmol cm −2 h −1 . Mechanistic studies reveal that Pd and NiCo‐LDH act synergistically to promote reactant adsorption and activation, yielding *CHO‐CH 2 OH and *NH 2 intermediates for CN coupling to form formamide. Furthermore, this system can be extended to the transformation of real‐life polyethylene terephthalate (PET) plastic‐derived EG, achieving formamide yield rates of 0.84–1.12 mmol cm −2 h −1 and Faradaic efficiencies of 42.7%−50.6%. This work establishes a mild and sustainable electrocatalytic route for formamide synthesis using PET waste as feedstock.