In order to reveal the relationship between the structure and the electrochemical oxygen reduction reaction (ORR) activity of different double transition metal decorated catalysts, three different double transition metal and N co-doped carbon material cathode catalyst materials (FeCo-NC, FeNi-NC and CoNi-NC) were prepared in this study. The FeCo-NC catalysts synthesised in this study still showed high ORR activity under alkaline conditions, with a half-wave potential of 0.783 V-RHE, a mass activity (MA) of 11.36 A/g (0.77 V-RHE) and an ultimate current density of - 4.46 mA cm(-2); after 30,000 cycles, the half-wave potential only decreased to 99.3% of the initial potential. Meanwhile, we employ MS to establish three different double transition metal and N co-doped graphene catalysts and to calculate and analyse their desorption properties, leading to the FeCo-NC material being the model with the highest ORR activity, which is consistent with the experimental results.
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