TABLE 4.

Summary of BCN for the oxygen reduction reaction.

Catalyst	Synthetic method	Electrolyte	Onset potential (vs RHE)	E 1/2 (vs RHE)	Electron transfer (n)	Tafel slope (mV dec‐1)	J L (mA cm‐1)	Ref.
BCN	Pyrolysis	0.1 m KOH	0.940 V	0.820 V	3.91	–	–	[175]
BCN/C60	Pyrolysis	0.5 m NaOH	0.920 V	0.790 V	3.85	87	–	[177]
BCN/C	Pyrolysis and solvothermal	0.1 m KOH	1.01 V	0.860 V	≈4	72.4	–	[178]
NBC nanosheets	Pyrolysis	0.1 m KOH	0.87 V	–	≈4	79	4.18	[179]