Ozone decomposition on the surface of metal oxide catalyst. Part 1

The catalytic decomposition of ozone to molecular oxygen over catalytic mixture containing manganese, copper and nickel oxides was investigated in the present work. The catalytic activity was evaluated on the basis of the decomposition coefficient g which is proportional to ozone decomposition rate and it has been already used in other studies for catalytic activity estimation. The reaction was studied in the presence of thermally modified catalytic samples operating at different temperatures and ozone flow rates. The catalyst changes were followed by kinetic methods and surface measurements. The catalyst mixture has shown high activity in ozone decomposition at wet and dry O 3/O 2 gas mixtures. The mechanism of catalytic ozone degradation was suggested.