Table 3.

Calculated rates of reaction of O₂ (25%) with Re MBH under a range of conditions, electrode rotation rate = 4500 rpm

Variable	Rate of O2 reaction, s−1
Potential, V vs. SHE*
+0.192	0.11
+0.262	0.10
+0.332	0.10
+0.402	0.11
pH†
4.5	0.12
5.5	0.11
6.5	0.11
Temperature, ° C‡
0	0.06
10	0.11
20	0.19
30	0.31

*All values were recorded at pH 5.5, 10° C.

^†All values were recorded at 10° C, at a constant overpotential (driving force) of +523 mV relative to the thermodynamic H⁺/H₂ cell potential at each pH.

^‡All values were recorded at pH 5.5, at a constant overpotential (driving force) of +523 mV relative to the thermodynamic H⁺/H₂ cell potential at each temperature.