励起酸素分子^1Δ_gの失活に及ぼす表面反応の影響

概要

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The surface deactivation rates of singlet oxygen (^1Δ_g) on inactive materials and SUS316L have been measured with the use of a flow tube system, which generates the excited oxygen in a low concentration in pure oxygen flow by microwave discharge. The first-order surface deactivation probabilities have been determined from measurements of the emission intensity decay of the excited oxygen and analysis of the flow fields in the circular tube. The first-order deactivation probabilities measured on the inactive materials slightly depend on the concentration of the excited oxygen, which indicates the possibility that the surface reaction has a higher-order reaction besides the first-order reaction. The inactive materials are in the following relation in their reactivity to deactivate the excited oxygen : Pyrex>PVC>SiO_2>PFA>PTFE. In addition, the deactivation probability on SUS316L is about three orders higher than those on the inactive materials.
社団法人日本機械学会の論文
1993-10-25