Fe2N nanoparticles boosting FeNx moieties for highly efficient oxygen reduction reaction in Fe-N-C porous catalyst

Replacing Pt-based electrocatalysts for the oxygen reduction reaction (ORR) with high performance and low-cost non-precious metal catalysts is crucial for the commercialization of fuel cells. Herein, we present a highly efficient Fe-N-C porous ORR electrocatalyst with FeNxmoieties promoted by Fe2N nanoparticles derived from Fe-doped zeolitic imidazolate framework. The best-performing Fe-N-C/HPC-NH3catalyst exhibits a superior ORR activity with...