Fabricating hierarchically porous and Fe3C-embeded nitrogen-rich carbon nanofibers as exceptional electocatalysts for oxygen reduction

A novel metal organic frameworks-based carbon nanofiber is prepared by pyrolyzed electrospun nanofibers. One-dimension structure, abundant Fe3C nanoparticles and hierarchical pore structure of carbon nanofibers facilitates the electron transfer and enlarges the electrode-electrolyte interfaces. This carbon nanofibers exhibits superb electrocatalyst performance for oxygen reduction reaction, outperforming benchmark Pt/C catalysts in alkaline media.389