Abstract:Nitrogen-doped graphite-carbon supported FeNi alloy nanoparticle composite electrocatalyst (C60/FeNiTPP-700-900) was successfully prepared by self-assembly and gradient annealing of fullerene (C60) and bimetallic porphyrin compound (TPP). The obtained materials were characterized by XRD, SEM, TEM, XPS and electrochemical methods, and the properties of hydrogen evolution (HER) and oxygen reduction (ORR) were tested. The results showed that the hydrogen evolution overpotential of C60/FeNiTPP-700-900 was 164 mV at a current density of 10 mA cm-2 in 1.0 M KOH, and the catalytic stability of C60/FeNiTPP-700-900 was maintained for at least 20 h. In the ORR process, the half-wave potential reaches 0.824 V (relative to the reversible hydrogen electrode potential), and has good stability and methanol tolerance. This work provides a new idea for the design and preparation of high efficiency and low cost bifunctional electrocatalysts.