A facile approach for synthesizing nitrogen-doped carbon supported circular trough-shaped FeCo alloy for the oxygen reduction reaction

A nitrogen-doped carbon-supported circular trough-shaped FeCo alloy-based electrocatalyst (FeCo/NC) was synthesized by a simple-to-accomplish method. The unique alloy structure and rich Fe/Co-Nx-based active sites constructed during the pyrolysis process endowed FeCo/NC with comparable electrocatalytic ORR activity in both a three-electrode system and Zn-air batteries to that of previously reported FeCo alloy-based catalysts.