Abstract
Fe–N–macrocycles have been viewing as the most promising catalyst for CO2ER. It is of great importance to explore the performance of composite CuFe–N–C in CO2ER. Fe-Cu–BTT precursor was prepared by introducing the ferrous ion to a microporous N-rich MOF. It exhibits a lower plateau temperature of 800 ℃ than the prototype. The pyrolysis product of FexCu–N–C increases the selectivity of CO2-to−CO due to the increase of the BET surface area, the total pore volume, and the Fe–Nx sites, as well as a lower density of Cu NPs in the carbon matrix. The Fe0.07Cu–N–C800 exhibits the highest FECO of 48.5 %.
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