Electrode

Material

Oxidation

Potential (V)

Overpotential

of O₂ Evolution

(V)

Adsorption

Enthalpy

of MO_x (^●OH)

Oxidation

Power of the

Anode

RuO₂-TiO₂

1.4 - 1.7

0.18

Chemisorption of ^●OH

IrO₂-Ta₂O₅

1.5 - 1.8

0.25

Ti/Pt

1.7 - 1.9

0.3

Ti/PbO₂

1.8 - 2.0

0.5

↑

↓

Ti/SnO₂-Sb₂O₅

1.9 - 2.2

0.7

p-Si/BDD^*

2.2 - 2.6

1.3

Physisorption of ^●OH