Encapsulation of Iron Nitride by Fe–N–C Shell Enabling Highly Efficient Electroreduction of CO₂ to CO

The conversion of CO2 into valuable chemicals has captured extensive attention for its significance in energy storage and greenhouse gas alleviation, but the development of cost-effective electrocatalysts with high activity and selectivity remains the bottleneck. Herein, we designed a Fe–N–C nanofiber catalyst featuring a core–shell structure consisting of iron nitride nanoparticles encapsulated within Fe and N codoped carbon layers that can...