(509dm) Rapid Fabrication of Atomically Dispersed Fe on Porous Carbon Via Photothermal Process for Nitrogen Reduction

Ammonia production nowadays has been limited to restricted synthetic environment through Haber-Bosch process. Electrocatalytic reduction of N₂ has been a promising method to generate NH₃ under ambient conditions and reduce the carbon dioxide emission. It is imperative to develop a novel catalyst in industrial scale for nitrogen reduction reaction. Here, we reported a roll-to-roll compatible intensive pulse light for microsecond photothermal rapid fabrication of atomically dispersed Fe on porous graphitic carbon. The microsecond fabrication not only reduces the carbonization time but also inhibits the diffusion of the Iron and further stabilizes Fe on carbon material. The material contains phenol-formaldehyde resin as carbon scaffold, Pluronic F127 as sacrificial porogen, dicyandiamide as nitrogen dopant, and imidazole coordinated Hematin porcine as Fe precursor. This rapid photothermal process can be potentially applied to the design of other single metal atom dispersed catalyst for large scale manufacture.