Influence of Rust on Electrodes of Oxygen-fed Ozonizer to Ozone Generation
2005
The rust is generated on a metal electrode when the oxygen-fed ozonizer with a short gap is driven in a high discharge density. The ozonizer consists of a metal electrode and glass one, and the rust on a metal electrode disperses to a glass electrode. We found that the ozone yield efficiency improves about 20% in some condition when the rust adheres on the glass electrode. The rust is the oxidized chemical compounds of Fe, Ni, Cr, Mo which are a materials of a metal electrode(SUS304). We examined the characteristics of ozone generation using the glass electrode painting various kinds of the oxidized chemical compounds including above materials. As a result, the same characteristic in case of generation of rust is obtained when CrO3 is painted. We conclude that the change of characteristics is caused by the Cr in the rust.
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