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Generation of high O2 (a1Δg) concentrations in O2/H2 mixtures

✍ Scribed by Kangyan Du; Ole Krogh; D. W. Setser

Publisher: John Wiley and Sons
Year: 2005
Tongue: English
Weight: 105 KB
Volume: 38
Category: Article
ISSN: 0538-8066
DOI: 10.1002/kin.20128

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✦ Synopsis

Abstract

The effect of hydrogen on the concentration of singlet oxygen in the a^1^Δ~g~ and b^1^Σ states, generated from a microwave discharge in O~2~ and in an O~2~/Ar mixture, was studied in flow reactors. The addition of hydrogen, in a range of 0.01–1 of concentration of the O~2~, increased the yields of singlet oxygen by factor of 5–20. In addition to the higher O~2~ (a and b) concentrations, the addition of hydrogen removed the usual NO~2~ fluorescence, making observation of the O~2~(b → X) transition at 762 nm much easier in the flow reactor. © 2005 Wiley Periodicals, Inc. Int J Chem Kinet 38: 12–17, 2006

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