Table 1: Calculated dependence of the rest potential (open-circuit potential) on the hydroxyl anion concentration, and the oxygen partial pressure for oxygen reduction for the PC electrodes in KOH electrolyte.

Electrode 𝑛 𝑚 ( ± 0 . 1 ) 𝑝 ( ± 0 . 1 )

PCA
𝐸 0 𝑟 = 80 mV versus SHE
10.60.5
21.30.9
31.91.4
42.61.9

PCB
𝐸 0 𝑟 = 130 mV versus SHE
10.50.2
20.90.4
31.40.5
41.90.7

See (15); 𝐸 𝑟 is the rest potential, and 𝐸 0 𝑟 is the standard rest potential; 𝑛 refers to the possible number of electrons transferred for the proposed equilibrium reaction.