Applied Physics B

, Volume 49, Issue 2, pp 121–129

Ozone production in oxygen by means of F2-laser irradiation at λ=157.6 nm

  • B. Freisinger
  • U. Kogelschatz
  • J. H. Schäfer
  • J. Uhlenbusch
  • W. Viöl
Contributed Papers

DOI: 10.1007/BF00332271

Cite this article as:
Freisinger, B., Kogelschatz, U., Schäfer, J.H. et al. Appl. Phys. B (1989) 49: 121. doi:10.1007/BF00332271

Abstract

Ozone is generated in pure oxygen (p≦5 kPa), synthetic air (p≦7 kPa) and oxygen-argon mixtures (p≦3 kPa) by irradiation of these gases with the VUV light of a repetitively pulsed (fL≦15 Hz) F2-laser at λ=157.6 nm with maximum about 4 mJ/pulse. An absorption photometer measurement operating at 253.7 nm (Hg line) determines the ozone concentration as a function of oxygen and/or additive gas pressure, the repetition frequency of the laser and the wall temperature of the reaction chamber. The temporal development of the ozone concentration as a function of these parameters is calculated by means of rate equations for the species O(3P), O2(X3g), O3(1A1), O(1D), O2(a1Δg), O2(b1g+) and vibrationally excited O3*(1A1) and the photon distribution. The maximum concentration of O3 in the sealed-off chamber reaches 1.6% in pure O2, 4.1% in air and 1.2% in a 1:5 O2-Ar mixture at 3 kPa. The annihilation of O3 by the wall and temperature dependent volume processes (300 K≦T≦395 K) is studied and the experimental and theoretical results are compared.

PACS

33.80 82.50-m 

Copyright information

© Springer-Verlag 1989

Authors and Affiliations

  • B. Freisinger
    • 1
  • U. Kogelschatz
    • 2
  • J. H. Schäfer
    • 1
  • J. Uhlenbusch
    • 1
  • W. Viöl
    • 1
  1. 1.Institut für Laser- und PlasmaphysikHeinrich-Heine-UniversitätDüsseldorf 1Fed. Rep. Germany
  2. 2.Asea Brown Boveri Corporate ResearchBadenSwitzerland