Catalytic Processes of Ozone Destruction

In the early 1960s it was realized that there are mechanisms for ozone destruction in the stratosphere in addition to the processes described in the Chapman mechanism. These additional processes all involve catalysts present in air. In the material that follows, we investigate two general reaction mechanisms by which stratospheric ozone is catalytically destroyed, paying particular attention to the role of chlorine and bromine.

There exist a number of atomic and molecular species, designated in general as X, that react efficiently with ozone by abstracting (removing) an oxygen atom from it:

Continue reading here: 03 XO o2

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