Fe/N/C Nanotubes with Atomic Fe Sites: A Highly Active Cathode Catalyst for Alkaline Polymer Electrolyte Fuel Cells

Fe-containing N-doped carbons (Fe/N/C) are a promising Pt-alternative catalyst for the oxygen reduction reaction (ORR) and are believed to be more stable in alkaline media than in acids and thus particularly suitable to be applied as the cathode catalyst for alkaline polymer electrolyte fuel cells (APEFCs). However, there has hitherto been no successful report on high-performance APEFC based on the Fe/N/C cathode, the reason for which is still...