Electrode reaction of oxygen reduction reactions in different electrolytes.
| Reaction path | Electrolyte solution | Reaction equation |
|---|---|---|
| 4e | H+ | O2 + 4H+ + 4e− = 2H2O |
| OH− | O2 + 2H2O + 4e− = 4OH− | |
| 2e | H+ | O2 + 2H+ + 2e− = H2O2 |
| OH− | O2 + H2O + 2e− = HO2− + OH− |
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