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The ozone decomposition reaction to molecular oxygen was studied in a flow reactor on a MnO2 / γ-Al2O3 / cordierite catalyst. The rate expression is found to depend on ozone concentration, rO3 = k(O3)0.68, but not on O2 or H2O partial pressure. A reaction sequence based on an ionic type intermediate with superoxide (O2−) or peroxide (O22−) character is proposed to explain the kinetics.
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Dhandapani et al. (1995) studied this question.
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