ABSTRACT
As the example, specific activities of these oxides in the catalytic oxidations of hydrogen and carbon monoxides as well as in oxygen isotopic exchange are shown in Fig. 3.13. The data were taken from [46,59,60] . Similar activity patterns were obtained for the total oxidation of CH30H, C3H6, C6H6 [61], NH3 [62], C6HS· CH3 [63], etc. The fact that the same activity pattern is observed for the catalytic oxidation of different oxidizable substances led to the conclusion that this pattern reflects in some way the reactivity of oxygen at the surface of metal oxides, frequently also described as the "mobility" of surface oxygen [58].
